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Unlocking Pipeline Efficiency: The Ultimate Guide to Pig Launchers
September 15, 2025

Us bellows pig launcher

Your pipeline is the circulatory system of your operation, and just like a human body, it requires routine maintenance to function at its peak. 

Pigging: the act of using a device called a “pig” to clean, inspect, or maintain a pipeline, is the most effective way to achieve optimal performance from your piping operation. And at the center of any successful pigging program is the pig launcher.

A pig launcher is a specialized piece of equipment that safely introduces a pipeline pig into a pressurized line. It’s a critical component that delivers efficient and safe pigging operations. 

Choosing the right one can be hard. This guide will help you understand the benefits and options available, enabling you to make an informed choice that will aid in maintaining a debris-free piping operation.

Equipment

The physical infrastructure is essential for any pigging operation. This equipment, including pig launchers and receivers, enables the safe and efficient introduction and removal of pigs from the pipeline.

  • Pig Launcher: An oversized section of pipe where a pig is loaded and then launched into the main pipeline. It’s equipped with a quick-opening closure for easy access and various valves to control pressure and fluid flow.
  • Pig Receiver: Located at the end of a pigging run, this is a similar oversized section of pipe designed to catch the pig and any debris it pushes. It also features a quick-opening closure for retrieving pigs and debris.
  • Kicker and Bypass Lines: The kicker line is a smaller pipe that directs a portion of the product flow into the launcher to propel the pig. Bypass lines are used in receivers to allow continuous product flow while the pigging process is underway.

Why Pig Launchers Are Important for Your Piping Operation

Investing in a quality pig launcher isn’t just about maintenance; it’s about safeguarding your assets and maximizing your return. The benefits extend far beyond a clean pipe:

  • Boosted Productivity and Flow: Debris, wax, and scale buildup inside pipelines can restrict flow, increase friction, and reduce overall throughput. Regular pigging removes these blockages, improving flow rates and boosting operational efficiency.
  • Reduced Operational Costs: By recovering valuable products, minimizing waste, and decreasing the need for extended shutdowns for manual cleaning, pigging systems can lead to significant cost savings.
  • Increased Safety: Modern pig launchers are designed with safety features, such as quick-opening closures and pressure relief devices, to protect personnel and equipment during operations, thereby mitigating risks associated with high-pressure systems.
  • Product Batching and Separation: For companies that transport different products through the same pipeline, pigging allows for the effective separation of batches, preventing cross-contamination and ensuring product purity.

For a deeper dive into how custom solutions can address specific challenges, read our companion piece: Custom-Designed Pig Launcher.

Your Options: Choosing the Right Pig Launcher

Pig launchers are not one-size-fits-all. They are highly customized based on your specific application, pipeline dimensions, and operational needs. Here are the key factors you need to consider:

Sizing and Pressure

The most important considerations are the size of your pipeline and the operating pressure. The launcher’s major barrel must be large enough to hold the pig, while the minor barrel must match the diameter of the pipeline. Our capacity for design pressure range is up to  4000 PSIG (pounds per square inch gauge) for pig launchers and receivers:

Material Selection

The material of the launcher is critical for lifespan and safety. Most are fabricated from carbon steel, but for corrosive or sanitary applications (e.g., food and beverage), materials like stainless steel are often required to prevent contamination and withstand harsh environments.

Level of Automation

Pig launchers come with various levels of automation. From simple, manually operated systems with flag indicators to fully automated, remotely controlled units, the choice depends on your budget and the frequency of pigging operations. Automated systems reduce operator involvement, increase safety, and enable more frequent and aggressive pigging programs.

Things We Need to Know, Before We Quote a Pig Launcher or Receiver 

  • What will the launcher be used for, liquid or gas? This will determine the design code.
  • What will be the pressure and temperature of the fluids in the operating system?
  • Will you need supports (legs) to be included?
  • What type of finish will you select? The standard finish is our shop primer.
  • Do you have any special requirements? Anything added to a launcher or receiver can increase both complexity and cost.
  • What is the location of closure, where the pig will be loaded? As pressure requirements increase, closure options become more restrictive.

Specialized Features

To optimize your system, consider these options:

  • Quick-Opening Closures: These are essential for safe and rapid access to the launcher barrel, allowing for the insertion or retrieval of the pig.
  • Instrumentation Ports: These allow for pressure monitoring, while vents and drains are crucial for depressurization and cleaning.
  • Bypass Lines: A bypass allows product flow to continue while the launcher is offline for maintenance.

Multiple-Pig Systems: For complex operations, launchers can be designed to hold and launch multiple pigs in sequence, which is ideal for multi-stage cleaning or intelligent inspection.

At Sweco Fab, a Piping Technology & Products company, we offer the following capabilities for pig launchers and receivers:

Fabrication Design Codes Materials of Construction Design Pressure Range Pig Trap Size Ranges Maximum Overall Skid Offered Shop Certifications
ASME B31.4, B31.8, B31.4 & Sec. VIII Div.1 CS, LTCS, SS 304, SS316 & API Pipes Up to 4000 PSIG Line 2″ NPS to 48″ NPS Lines 8′ x 40′ x 10′ (Up to 40,000 Lbs weight capacity) ASME U & R Stamp certified, ISO 9001

Don’t Leave Your Pipeline to Chance: Partner with Piping Technology & Products (PT&P)

Every pipeline is a significant investment, and its performance directly impacts your bottom line. By selecting the right pig launcher and receiver system, you can ensure continuous operation and protect your infrastructure. The decision to pig your pipeline is the first step toward a smarter, more profitable operation. The next step is choosing a partner like PT&P who can provide the right solution, tailored to your exact specifications.

Ready to boost performance and safety in your pipeline operations? Contact our experts and request a quote today to design a custom pig launcher.

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Built for Real-World Vertical Support: Custom Riser Clamp Assemblies That Hold the Line
July 21, 2025

Pipe Clamp Assemblies Custom Designed for a Partial Oxidation Unit in a Synthetic Gas Plant

When vertical piping in a high-pressure system starts to shift, everything downstream is at risk. Hanger misalignment, accessory failure, and field delays would be the least of your worries when vertical pipe systems experience axial displacement. 

That’s where Piping Technology & Products’ custom riser clamp assemblies deliver assurance engineers can count on. With the proper design specifications, PTP can manufacture precision riser clamps that ensure secure and reliable product delivery.

Purpose-Built for Vertical Load Control

Riser clamp assemblies are specifically engineered for vertical pipe systems where axial movement must be restricted. It is not a one-size-fits-all product. Each assembly is fabricated to fit exact pipe diameter, temperature, and load specifications, most commonly for critical process lines in synthetic gas, petrochemical, or tall vertical rack applications.

At its core, the assembly relies on a heavy-duty steel clamp secured around the pipe, working in tandem with thrust plates to manage axial loads. 

For high-heat applications, manufacturers utilize A387 alloy steel (rated for service temperatures of 750°F to 1,000°F) and a high-temperature coating that won’t degrade or flake under scorching conditions.

Once installed, the clamp limits movement in the downward direction, ensuring the pipe doesn’t slip under load or due to temperature expansion. Engineers often pair the clamp with spring hangers or sway struts for a complete load path solution.

Real-World Application: Synthetic Gas Plant Retrofit

At the request of a synthetic gas facility, PTP engineered a custom riser clamp assembly for their high-temperature vertical piping. We used Alloy A387, a heat-resistant steel specifically selected for service temperatures reaching up to 1,000°F, to fabricate this assembly. 

To ensure performance under thermal cycling, we coated the clamp with a high-temperature industrial-grade coating designed to withstand prolonged exposure without degradation. By preventing vertical slippage during system startup, the clamp maintained alignment integrity and eliminated the risk of early rework or other types of damage to the pipeline.

Common Use Cases for Riser Clamp Assemblies

Riser pipe clamp assemblies serve a critical role in applications where vertical piping must be securely supported and restrained. 

Engineers commonly use them on vertical risers in fired heater loops, where high temperatures and axial loads demand reliable restraint. They also support tall structural pipe racks in petrochemical plants, ensuring alignment across multi-level piping systems. 

In high-rise and offshore environments, riser clamps provide secure anchoring for firewater systems subject to seismic or dynamic loading. Additionally, LNG facilities rely on them for vertical steam lines that require thermal movement control and long-term integrity.

Key Benefits for Field Execution

PT&P’s custom riser clamp assemblies provide clear advantages for vertical piping systems. 

They prevent pipe slippage by firmly securing the line in place, ensuring axial stability under load. 

Each assembly is custom-sized to match the exact pipe outer diameter, specified load, and temperature range, eliminating fit-up issues during installation. 

PT&P designs these supports to handle pipe sizes up to 48 inches and fabricates them with high-temperature materials and coatings that perform reliably in scorching environments. 

Engineers apply Finite Element Analysis (FEA) to optimize steel thickness, reduce excess material, and validate structural integrity. 

By managing design, fabrication, and delivery in-house, PT&P minimizes handoffs and reduces the risk of delays or errors throughout the supply chain.

Why Engineers Choose Riser Clamp Assemblies

Engineers value this clamp for its precision and structural integrity. Load ratings are validated through FEA, ensuring that the clamp can stand against almost any surprise event. For jobs with elevated temperatures or non-standard loads, our custom approach removes guesswork from spec compliance.

Why Project Managers Chose Riser Clamp Assemblies

What sets these clamps apart is how they minimize scope creep. 

When clamp assemblies are properly designed from the start, there’s no field modification, no install surprises, and fewer RFIs. The result: less rework, better schedule control, and a clear value add during procurement planning.

Other Items Often Purchased with Riser Pipe Clamp Assemblies

Talk to an Engineer

Need a riser clamp that fits your piping system? Our team is ready to review your load, pipe size, and environment to build the right assembly fast.

Request a Quote or Talk to an Engineer today.

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Trunnion Base ELL (Elbow) Pipe Supports for Cryogenic Piping: Proven Thermal Isolation and Custom Fit
July 14, 2025
Trunnion Base ELL Supports for a Cryogenic Line
Trunnion Base ELL Supports for a Cryogenic Line

What is a Trunnion Pipe Support?

A trunnion pipe support is a structural component used to support a piping system and is connected directly to the process line. It functions as a secondary pipe element, helping hold the main line in position for stability.  ASME standards guide their application and analysis to ensure safety and reliability, particularly in high-energy piping and under various operating conditions. 

In standard applications, trunnions are used to:

  • Support sections of pipe vulnerable to weight or stress
  • Help manage pressure at directional changes like elbows
  • Provides added stability and structural strength by helping reinforce the system at critical load points
  • Prevent displacement under heavy loads or external forces

In cryogenic systems, however, added challenges emerge. Maintaining thermal insulation at support points is critical. Without it, heat transfer through the support could lead to the evaporation of liquids into gases, cause condensation, and/or result in ice buildup. Over time, this can damage the pipe or disrupt flow.

Custom Trunnion Base ELL Pipe Supports for Cryogenic LNG Applications

Trunnions Designed with Insulation for an LNG Facility
Trunnions Designed with Insulation for an LNG Facility

At an LNG gasification facility, our customer required pipe supports that could prevent the transfer of heat and provide trunnion-like stability and strength. Piping Technology & Products collaborated closely with the client to design a customized solution that met both mechanical and thermal performance requirements.

The result was a trunnion base ELL support with a layered construction: an A36 carbon steel base, an integrated insulation block, and a stainless steel pipe saddle. This configuration prevented heat transfer between the pipe and the support.

By incorporating an insulation block into this design, we prevented heat transfer from the trunnion pipe support to the process line, which is a feature that a standard trunnion does not offer. The trunnion keeps the cold pipe separated from warmer support steel, suppressing frost build-up at the base and pipe rack. The pre-insulated support design maintained a steady temperature for the LNG from Point A to Point B, preventing it from warming up and converting from a liquid into a gas.

What Is a Trunnion Base ELL Support and How Does It Work? 

A trunnion base ELL support for LNG applications is a specialized insulated pipe support designed for cold-service and cryogenic process lines. It supports the main pipe while creating a thermal break between the pipe and the support base.

Unlike standard trunnions, which are not designed to address thermal integrity, this design minimizes thermal bridging. 

It typically uses:

  • A carbon steel base for structural strength
  • A block insulation layer to isolate temperature
  • A stainless steel pipe saddle that connects to the process pipe

Where Trunnion Base ELL Supports Are Used

Trunnion base ELL supports are specifically designed for cold-service environments where thermal performance is critical. 

They are commonly used in LNG liquefaction and gasification facilities, where maintaining sub-zero temperatures is essential to system operations and safety. These supports also play a key role in ethylene and ammonia plants, which use chilled piping to move process materials while minimizing energy loss. 

In all cases, the design enables operators to move product from one stage to the next without experiencing temperature changes, condensation, or structural complications caused by frost buildup.

Key Field Benefits

  • Thermal isolation is built in; it prevents cold pipe surfaces from transferring extreme temperatures to structural steel, helping maintain safe operating loads without added field insulation.
  • Reduces condensation, prevents ice formation, and pipe damage
  • Custom-fit to specification for pipe sizes ranging from 2 in. to 60 in., fitting cleanly into the line
  • Supports heavy vertical loads while preserving pipe wall integrity
  • Material matched to the parent pipe  to maintain mechanical and chemical compatibility
  • Delivered fast, often within weeks, even for custom builds
  • Provides rigid support in low-movement areas, preventing pipe sag or collapse in static runs or where line displacement is minimal.
  • Helps reduce stress at elbows and vertical transitions, reinforcing piping in high-pressure or structurally sensitive locations.

Why Engineers Choose Trunnion Base ELL Supports

Engineers specify trunnion base ELL supports when thermal isolation is non-negotiable. These supports are sized according to the process pipe’s outside diameter and insulation thickness, ensuring a proper interface without modifying the pipe’s thermal envelope. 

The materials used, including carbon steel (for areas not in direct contact with the process line), high-performance insulation, and stainless steel, are known to perform reliably in environments that reach as low as -300°F.

Why Project Managers Trust It

Project managers rely on trunnion base ELL supports to avoid the common pitfalls that delay cold-service projects. Because the insulation is integrated into the support design, there’s no need to coordinate separate insulation crews or handle last-minute RFIs about support height or fit-up. 

Eliminating this extra field work speeds up installation, lowers labor coordination complexity, and reduces the risk of frost-related damage during startup. By arriving job-ready and material-matched, these supports enable faster handoff to commissioning teams and help keep the schedule on track.

Related Products Commonly Purchased

Why Choose Piping Technology for Your Cryogenic Pipe Supports

We deliver custom-engineered cryogenic pipe supports built to meet the exact demands of cold-service environments. 

Our in-house team manages the entire fabrication process, from material selection to final delivery, providing you with tighter control over schedule and quality. 

For complex or high-load applications, we can perform Finite Element Analysis (FEA) to verify stress points and optimize steel thickness for performance and safety. With decades of experience and a proven track record in LNG, ammonia, and ethylene systems, we provide both the technical expertise and manufacturing speed your project requires.

Speak with an Engineer about trunnion support specifications or Request a Quote for your next cryogenic line.

 

 

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Pipe Support Walkdowns
July 7, 2025

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Even the best-designed piping systems can deteriorate over time or encounter challenges due to improper installation or maintenance cycles that need updating.  

A pipe support that’s even half an inch too low can throw off alignment, especially for sensitive rotating equipment. Improper alignment of pipe shoes set at the wrong height, spring cans locked in place due to shipping, or non-functioning pipe supports can go unnoticed, and sometimes not until a costly unexpected shutdown occurs. 

A pipe support walkdown, performed by subject matter experts (SMEs), helps identify these issues before they become costly.

Solution: What is a Pipe Support Walkdown and How Does it Help?

A pipe support walkdown is a field-based verification process for any system using pipe supports or rotating equipment. 

A qualified technician or engineer inspects the installed pipe supports to confirm everything matches the design intent and is safe for operation. That means:

  • Verifying metallic expansion joints are properly aligned, anchors are secure, and shipping bars or restraints are removed to allow unrestricted axial or lateral movement during system operation.
  • Checking spring hangers are unlocked and set to the right load.
  • Verifying hold-downs, clamps, and anchors are tightened and positioned correctly.
  • Catching missing or incorrectly installed components before startup.
  • Ensuring fabric expansion joints are installed without twisting or distortion, frames are properly sealed, and flow direction indicators are correctly oriented to prevent leaks or premature wear.

A pipe support walkdown is not paperwork review. It’s boots-on-the-ground risk prevention.

 

Key Safety and Performance Benefits

  • Prevents startup failures by identifying locked supports, improper loading, or misalignment.
  • Protects against stress failures like cracked welds or ruptured anchors
  • Verifies load positions so pipe weight transfers as intended
  • Quickly identifies worn or failing rubber, fabric and metallic expansion joints
  • Confirms movement clearance for thermal expansion
  • Reduces incident risk for maintenance and operations teams

Engineer’s Take: Technical Insurance for the System

Walkdowns provide engineers with a final check on real-world variables, such as actual pipe weights, true centerlines, and friction conditions. They’re essential for validating that thermal movement will be absorbed by the system as designed, not resisted due to incorrect installation. For supports like spring hangers and slide plates, this is the only way to confirm field settings match the spec.

 

Project Manager’s Take: Stop Delays Before They Start

For PMs, plant walk downs are a high-leverage activity. One afternoon walk can prevent weeks of delay from an avoidable error. They reduce RFIs, holdbacks, and rework providing owners with confidence during system turnover. By validating installs, walk-downs keep your project on schedule and helps avoid costly failures and shutdowns.

 

Pipe Supports to Check and Verify During Walkdowns

  • Variable spring hangers
  • Constant supports
  • Rubber, fabric, and metallic expansion joints
  • Sway struts, snubbers, and anchors
  • And more

 

Contact our field service team to schedule a pipe support walkdown today. Reduce risk. Validate performance. Finish strong.

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PTFE Slide Plates: Built for Real-World Movement
June 29, 2025

Custom Designed PTFE Slide Plate and Pipe Shoe Assemblies

In many situations, fixed equipment must be able to move in axial and/or lateral directions. 

Surfaces where controlled movement is desired are ideal for Piping Technology’s PTFE Slide Plates. Typically, you will find these slide plates underneath pressure vessels or other heavy equipment, such as pumps and compressors, that must be able to move freely along their support surfaces to prevent unplanned outages or operational downtime. 

Without PTFE Slide plates, friction between metal components puts your equipment at risk of misalignment, ruptured lines, or anchor failures, which in turn shortens the lifespan of both piping and equipment.

PTFE (polytetrafluoroethylene) slide plates help prevent these issues by providing a low-friction interface, enabling smooth movement.

What’s at Stake in the Field

Whether it’s a pipe shoe sliding on a beam or a heavy vessel on embedded steel, surface friction can lock systems in place, causing stress and damage. Without the right slide interface, steel-on-steel friction causes wear, cracking, and eventually system failure. 

PTFE slide plates resolve this issue by reducing friction and maintaining structural alignment, which is especially crucial during thermal cycling. As temperatures fluctuate, pipes expand and contract, and the slide plates allow for this pipe movement without stressing supports or causing misalignment.

How PTFE Slide Plates Work

PTFE slide plates are two-part assemblies. PTFE is bonded to a carbon steel bottom plate and is also bonded to the top plate, which makes up the slide plate assembly. Once the bottom assembly is attached to the existing steel and the upper assembly is connected to the bottom of a pipe shoe or trunnion, a low-friction surface is created, allowing for both axial and lateral movement. The PTFE layers are mated from the upper and lower assemblies, allowing movement between the moving component and a fixed support beam or surface.

The result: Easy, controlled movement that reduces load transfer to anchors, minimizes friction, and extends equipment life.

Real-World Example: Natural Gas Pipeline Using PTFE Slide Plates

An international pipeline construction company partnered with us to supply PTFE slide plates for a major gas pipeline project in Africa.

The slide plate assemblies supported pipe shoes mounted on structural steel beams, accommodating both axial and lateral movement while maintaining structural stability.. 

We engineered and delivered twenty guided cradle supports, ranging in size from 8″ to 30″. Each was fabricated from carbon steel and painted for corrosion resistance.  

Thanks to our in-house inventory of PTFE, we accelerated production and avoided costly field delays, delivering exactly what the project needed, right on time.

Where PTFE Slide Plates Are Used

  • LNG terminals
  • Petrochemical plants
  • Refineries
  • Power plants
  • Beneath equipment like pumps and compressors
  • On spring supports 
  • Bridges: Highway bridges, overpasses, railroad bridges
  • Cross-beam and girder slip joints

Key Benefits of PTFE Slide Plates in the Field

  • Produces a low coefficient of friction between a stationary support element and the moving pipe support component
  • Enables controlled pipe movement to prevent overstress during thermal expansion
  • Ideal for low-heat and high-velocity conditions.
  • Minimizes friction between steel components, reducing wear
  • Pairs easily with other supports like pipe shoes and spring cans
  • Operates effectively from –320°F to +500°F, maintaining its low-friction properties across this wide temperature range

Engineer’s Take: Why Choose Our PTFE Slide Plates

PTFE slide plates are a trusted choice for engineers thanks to their high load-handling capacity, consistent low-friction performance, and long-term durability. 

We offer sizes ranging from 4″ x 4″ to 12″ x 12″ (and larger if needed), engineered to support both lateral and axial movement without compromising structural integrity. 

Unlike most suppliers, we stock PTFE in-house, ensuring faster lead times and dependable availability. We can custom-manufacture slide plates to your exact specifications, including custom shapes, thicknesses, and bonding requirements. 

PTFE is easy to install, requires no surface treatment or grouting, and performs reliably in all weather conditions, making it a smart, low-maintenance solution for demanding applications. 

Project Manager’s Take

From the project manager’s perspective, these plates solve several key problems: they reduce rework caused by misaligned pipe shoes, eliminate costly delays waiting for movement-compatible supports, and help preserve the integrity of anchors and foundations. With our rapid turnaround and in-house inventory, you can keep the installation on track and avoid any extended wait time.

Products Often Paired with PTFE Slide Plates

PTFE slide plates are commonly ordered with:

  • Pipe shoes
  • Hold-down clamps
  • Type F variable springs
  • Big Tons
  • Spectacle Blinds 
  • Embed Plates 
  • Pipe Saddles

Why Choose Piping Technology for Your Slide Plate Needs?

At Piping Technology, we stock over one million pounds of mixed inventory (including PTFE), enabling us to manufacture custom slide plates quickly and ship them fast. 

Our slide plates are available in a range of materials, including PTFE, graphite, bronzphite, stainless steel, and more, to meet the unique demands of your project.

We specialize in engineering cost-effective, custom solutions for complex piping challenges. Consult with one of our engineers today to discuss sizing, compatibility, or application needs, or Request a Quote to get pricing and lead times for your next project.

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Inspection and Upgrading of High Energy Piping Systems
June 26, 2025

This technical paper, presented at the 1987 Joint Power Generation Conference by engineers from Brown & Root U.S.A., Inc., addresses the critical need for systematic inspection and upgrading of high energy piping systems (HEPS) in power plants. Despite often being considered low-maintenance, these systems are prone to failures due to thermal fatigue, creep, vibration, and corrosion, particularly at welds, hanger points, and fittings.

The study identifies common failure locations, such as main steam lines, hot reheat lines, and boiler piping, and explains that older fossil fuel power plants are especially susceptible. Using historical data and case studies, the authors categorize failure types and associate them with specific plant components and operating conditions.

To mitigate these risks, the paper outlines methods to detect impending failures, including:

  • Stress analysis,
  • Visual and non-destructive inspection techniques (NDE),
  • Monitoring of pipe hangers and supports.

The authors emphasize the importance of systematic evaluation of symptoms (like pipe displacement or equipment overload), root cause diagnosis, and the application of targeted corrective actions, such as support replacement or system modification.

Overall, the paper provides a practical framework for maintaining the reliability and safety of HEPS, advocating for proactive maintenance strategies and the integration of modern diagnostic tools to prevent costly and hazardous failures.

Download PDF

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Hydraulic Snubbers Built for Real-World Events
June 23, 2025

Hydraulic Snubbers Designed for a Geothermal Facility

Designed to control movement during impulse and prevent sudden displacement 

When thermal movement, seismic activity, or pressure surges strike, unrestrained piping systems can suffer catastrophic failures. For project managers and engineers tasked with safeguarding critical infrastructure in unpredictable environments, hydraulic snubbers provide a tested and proven line of defense.

Without them, it could lead to breaks in the piping system, cause misalignment issues, and/or anchor bolt failure. With tight project schedules and in high-risk applications, that’s a scenario no one can afford.

How Hydraulic Snubbers Work

Hydraulic snubbers allow free thermal movement during normal operating conditions. But when a sudden shock load occurs, such as a water hammer, blast, or seismic event, the hydraulic snubber reacts instantly to restrict movement.

By automatically locking up during sudden displacement and staying passive during slow, normal motion, they effectively protect the piping system without interfering with normal operation. This dual-mode performance makes them ideal for high-performance applications requiring both flexibility and protection.

Case in Point: Custom Manufactured Hydraulic Snubbers for a California Geothermal Plant

For a geothermal facility in California, Fronek Anchor/Darling, a division of Piping Technology & Products (PT&P), designed and fabricated high-load hydraulic snubbers tailored for seismic resilience. In this application, our engineers designed two unique snubbers and a three-bolt pipe clamp:

  • Hydraulic snubbers designed for a 50,000 lb. max load, 5” cylinder, 6” stroke, measuring 34 ¾” to 37 ⅝” piston-to-piston.
  • Hydraulic snubbers designed for a 20,000 lb. max load, 2 ½” cylinder, and 6” stroke, measuring 56 15/16” to 59 5/16” piston-to-piston. 
  • Custom three-bolt carbon steel pipe clamps designed to fit the snubbers and accommodate the high loads.

Before shipment, our quality and production teams performed cycle testing on each hydraulic snubber unit, extending it from zero to its full range. 

The result: the geothermal facility received vibration protection that met strict seismic standards, safeguarding its piping system from high-intensity earthquakes without interfering with thermal movement or risking damage.

Where Hydraulic Snubbers Work Best

Because of the ability to restrict and control sudden movements, snubbers are ideal for specific needs, such as:

  • Geothermal plants, where the buildup of steam could cause steam hammers in the pipeline.
  • Petrochemical plants, where sudden forces like pressure surges, thermal expansion, or seismic activity could impact system stability and safety
  • Power plants, where dynamic loads such as seismic events, steam hammers, or turbine trips could cause sudden pipe movements.
  • Nuclear plants, where seismic activity and system fluctuations can affect the movement of critical liquids and gases. 
  • High-vibration environments that aren’t always predictable
  • Seismically active zones that require restraint under load but flexibility at rest.

At the geothermal facility in California, our snubbers were necessary in ensuring the heat of the pipes didn’t cause misalignment of their route. Because of our hydraulic snubbers, these pipes can transport energy safely and without interruption to thousands of homes. 

Key Benefits of a Hydraulic Snubber

The benefits are visible the moment they are needed. Because of its design, a hydraulic snubber:

  • Transfers shock and vibration from the piping equipment to the building structure during dynamic events, absorbing the impact instantly.
  • Allows free movement under normal thermal expansion
  • Minimizes damage risk from water hammer or seismic activity
  • Has a fully customizable stroke and can be supplied with pipe clamps for specific load applications.
  • Can be easily and efficiently cycle tested for durability and code compliance

Engineer’s Take: Why Choose Our Hydraulic Snubbers 

Engineers and project managers trust hydraulic snubbers from Fronek/Anchor Darling and PT&P because they:

  • Meet ASME and seismic restraint codes.
  • Are manufactured to specific specs based on an engineer’s and project manager’s application needs.
  • Can be manufactured and delivered at a faster rate than many other manufacturing firms.
  • Are designed and tested for long-term performance.
  • Offer replacement parts and repair services on existing snubbers in your facility

Products Often Paired with Hydraulic Snubbers

Get the Specs, Validate the Fit and Envelope

Talk to an Engineer today to get stroke, clamp, and load options tailored to your job, or Request a Quote to start planning with accurate lead time and technical documentation.

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Custom Pipe Clamps for 256-Mile Natural Gas Pipeline Across Ohio
June 16, 2025

110 Custom Designed Pipe Clamps for a Construction Company in Ohio

Project-Driven Pipe Clamp Fabrication Delivered in 8 Weeks

A construction firm set out to build a 256-mile natural gas pipeline across Ohio to meet the growing energy needs of the Midwest. A few challenges: ensuring that support components for the 42-inch diameter line could meet technical requirements and scheduling demands with no room for error.

To ensure the safe and long-term operation of its piping systems, the project team turned to Piping Technology & Products (PT&P) to design and deliver more than 100 custom-fabricated pipe clamps

Project Requirements and Pipe Clamp Design Specifications

The project managers could not afford delays, rework, or compliance issues from unsuitable pipe clamps that did not adhere to engineered specifications.
What the project demanded:

  • Custom-manufactured clamps for 42-inch OD pipe
  • Hot dip galvanized for outdoor exposure, which would minimize future maintenance needs

PT&P engineered and manufactured 110 heavy-duty pipe clamps tailored to this job’s exact needs from our Houston facility.

Technical Highlights: How the Pipe Clamps were Built

  • Pipe Diameter: 42 inches
  • Clamp Width: 12 inches
  • Material: A36 carbon steel body with bonded vibration control materials (Other options: Neoprene, PTFE, isolation pads, Fabreeka®, and more)
  • Fabrication: In-house manufacturing
  • Quality Control: Visual examination and fit-up verification for pipe OD were conducted before shipment to meet industry-standard inspections
  • Delivery: 8 weeks, end-to-end

Engineer’s Take: Structurally Sound and Specification-Driven

Engineers on this project required proof that their supports would withstand the field conditions. Our clamp design included bonded wear pads to protect the pipe from damage and corrosion. All materials were verified to meet MSS SP-58 guidelines, ensuring long-term performance with no compromise on safety.

Project Manager’s Take: Zero Rework, On-Time Delivery

Avoiding schedule slippage was critical.  By validating technical requirements at each stage, we avoided rework, reduced delays, and delivered with confidence. Our 8-week turnaround and proactive communication, which included scope reviews, design approvals, milestone check-ins, and regular updates, eliminated guesswork. Every clamp arrived jobsite-ready, clearly labeled, spec-compliant, and fit to install with no field adjustments.

Why Project Managers Choose PT&P Pipe Clamps

  • Short Lead Times: Most of our products have an 8-week turnaround time, even on complex builds
  • Built to Spec: Made to your specs, no compromise on fit or load (standard products are also available)
  • Made in the USA: Full fabrication and QC from our Houston facility
  • Production Scalability: Capable of supporting both small-volume and high-volume orders

Clamp Configurations We Offer 

We manufacture a wide range of pipe clamps, including:

  • Standard pipe clamps
  • Adjustable clamps
  • Riser clamps
  • U-bolts
  • Fully custom configurations and options on materials and coatings

Most complex builds are fabricated to order at our Houston facility to meet exact project needs, whether that’s load rating, environmental resistance, or non-standard diameters.

By delivering precisely engineered, high-quality clamps, PT&P supported the safe and efficient development of this state-wide pipeline project. We are proud to support cleaner energy transitions by enabling fuel switching from coal to gas and allowing access to lower-cost shale gas reserves. 

Most large-scale projects require tailored designs like this one. That is why, with recent investments in our manufacturing operations, we are uniquely positioned as the only manufacturer to provide high-quality, custom-made solutions for your piping systems to our clients faster and on a larger scale than ever.

Need Project-Specific Pipe Clamps?

Our ability to design and manufacture sets us apart, providing confidence and assurance to our clients and their customers that we will strictly adhere to their specifications and job site requirements.

We’re one of the few U.S. manufacturers with in-house engineering, custom fabrication, and full quality control (QC) capabilities for high-specification pipe clamps.

Talk to an Engineer about your next project or Request a Quote today.

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Hold-Down Pipe Clamps with PTFE Slide Plates Offer Secure, Low-Friction Thermal Movement
June 9, 2025

HD-2 and HD-3 Hold-down Pipe Clamps

Allow Axial Movement While Maintaining Vertical Restraint

Pipe hold-down clamps secure the pipe in place while allowing it to expand, contract, and shift naturally without stress concentration or misalignment.

Thermal expansion can disrupt alignment, overstress anchors, and damage coatings, particularly on large-diameter pipes measuring 20 inches or more in diameter. Without proper restraint, pipe systems can buckle supports or shift pipe saddles, triggering high-cost field repairs.

In compressor stations, wastewater treatment facilities, pipeline terminals, petrochemical plants, and LNG terminals, slight misalignment can threaten structural integrity. Long lead times on specialized supports only aggravate the situation.

That’s why engineers choose pipe hold down clamps that install cleanly, eliminate the effects of stress, and account for thermal expansion.

HD-2 and HD-3 Pipe Hold Down Clamps with PTFE Slide Plates Manufactured by Piping Technology

Our HD-2 and HD-3 pipe hold-down clamps are designed to provide secure vertical restraint and controlled axial movement of the pipe.

These hold-down clamps are designed for pipes with diameters of 20 to 30 inches and are manufactured from carbon steel. The clamp saddle and base are lined with PTFE (polytetrafluoroethylene) and 25% glass fiber-filled slide plates, creating a durable, low-friction sliding surface.

The result: restrained vertical load with smooth axial movement, while restraining vertical and lateral movement in the piping system.

How it works:

  • PTFE-lined (or graphite) surface allows low-resistance axial pipe movement without binding or buckling
  • Glass fiber fill reinforces the sliding surface under load
  • Carbon steel body ensures long-term structural stability
  • Typically installs using a bolt-down configuration, minimizing the need for field welding

Case Study: Rush Delivery to South Dakota Natural Gas Pump Station

A natural gas pump station in South Dakota required large-diameter hold-down clamps that could withstand thermal cycling, vibration, and harsh outdoor exposure.

Project Specs:

  • Pipe Diameter: 20″ to 30″
  • Quantity: 22 custom-fabricated pipe hold down clamps
  • Material: Carbon steel with 25% glass-filled PTFE liners
  • Application Environment: Outdoor station, high-vibration compressor skid
  • Turnaround: One-week rush fabrication, shipped on time, zero field modifications

The hold-down clamps arrived installation-ready with clear labeling and documentation: no grinding, no guesswork, no schedule slip.

We pride ourselves on being the manufacturing leader for large-scale projects, providing rapid delivery to meet construction milestones. We offer a 24-hour emergency support hotline for critical situations:

Where Pipe Hold Down Clamps Work Best

  • Natural gas compressor and pump stations
  • Petrochemical and chemical processing plants
  • LNG terminals and cryogenic transfer lines
  • Structural steel pipe racks and skids for space aviation, semiconductor, and battery plants
  • Long-run pipe systems requiring expansion, travel control 

Field Benefits of Pipe Hold Down Clamps

  • Controls axial, vertical, and lateral movement, where uncontrolled movement can damage expensive equipment or cause safety hazards. 
  • Reduces clamp friction and wear with PTFE-lined saddle 
  • Minimizes rework and installation risk with a bolt-in design
  • Installs fast, no welding or fit delays
  • Engineered for vibration control to dampen and restrict pipe vibration, preventing fatigue or failure.
  • Built to spec for 20- to 30-inch diameter pipe
  • Shipped labeled and documented to streamline the installation

Engineer’s Take: Designed for Restraint

These hold clamps meet ASME and ASTM material and performance specifications, and every hold-down clamp undergoes rigorous internal quality checks and inspections. The PTFE slide plates enable axial movement of pipes without binding in piping systems and protect coatings. Engineers use them to control the piping system and meet ASME code requirements on critical long-run systems. For a pipe stress engineer, the use of hold-downs with PTFE can be a valuable tool in directing and managing the thermal expansion of the piping system.

Project Manager’s Take: Built to Install Without Surprises

When project timelines are tight, you don’t have room for guesswork. These pipe hold down clamps ship fast, even in a rush, and arrive ready to bolt in place. No RFI triggers, no field-fit delays. Just labeled, documented, fabrication-verified components that hold up during commissioning and beyond. Less risk, fewer delays, and lower total install cost.

Commonly Paired Products

Talk to an Engineer

Piping Technology has one of the largest engineering departments in the piping support manufacturing industry. If you think pipe hold-down clamps would be a good solution for your next project, but would like to discuss it with our technical engineers, then contact us today!

If you are ready to move forward with a quote for your next project, then send us an RFQ for pipe hold down clamps.
Contact Us

If you are ready to move forward with a quote for your next project, then send us an RFQ for pipe hold down clamps.
Request a Quote

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Custom Pig Launchers Built for High-Pressure Pipeline Performance
May 29, 2025
24" x 30" diameter, 740 PSIG Pig Launchers and Receivers
24″ x 30″ diameter, 740 PSIG Pig Launchers and Receivers

Maintain Flow, Prevent Downtime, and Protect Pipeline Integrity

As debris builds up inside long pipelines, it becomes increasingly difficult for the media to flow. If left unchecked, this buildup can compromise safety and trigger costly maintenance shutdowns.

Pig launchers provide a proven and reliable inline solution. Allowing for the insertion of pipeline inspection gauges, custom pig launchers & receivers are engineered for cleaning, separation, and inspection. In some cases, our custom pig launcher systems let you maintain pipeline performance without depressurization, keeping operations online and flow rates steady.

How a Pig Launcher Works

A pig launcher is a pressure-rated chamber that safely introduces a pipeline inspection gauge, commonly referred to as a “pig,” into a piping system. Once loaded, sealed, and pressurized, the pig is pushed through the line by the flow of media or compressed gas. The pig removes debris, separates media, and/or inspects for defects along the way.

Each pig launcher & receiver unit includes:

  • Major barrel for pig loading and collection
  • Minor barrel that is inline with the main pipeline
  • Quick-opening closure for safe, quick, and reliable access to the pig when it’s in the launching and receiving process
  • Valves and flanges designed to maintain flow through the bypass line with pressure gauges, vents, drains, pig indicators, and more; all designed to ensure project-specific specs are maintained

When paired with a receiver, it forms a complete pigging system, ideal for routine maintenance, pipeline integrity checks, or product batching without interruption to operations.

Case Study Example: High-Pressure Pigging System Built to Spec

A petrochemical plant needed a pig launcher and receiver package for two separate high-pressure lines. The design required tight alignment with operating conditions and quick field readiness.

Specs Delivered:

  • System pressure: 740 PSIG
  • Operating temperature: 170°F
  • Barrel sizes:
    • Set 1: 24″ minor × 30″ major × 138″ long
    • Set 2: 10″ minor × 14″ major × 132″ long
  • Material: API 5L X52 carbon steel
  • Application: High-pressure process lines requiring regular pigging
  • Design Code: ASME Section VIII, Div. 1

Each pig launcher unit was hydrotested by our in-house quality team, sandblasted, and externally coated for corrosion resistance. Units were fabricated to match line specs, fully documented, and shipped ready for installation.

Application Uses for Pig Launchers in the Field

Our pig launchers are routinely used in:

  • Crude oil pipelines
  • Natural gas transmission lines
  • Petrochemical and chemical process systems
  • Refined product transportation LNG terminals and compressor stations

Where flow assurance and cleanliness matter, pigging systems are standard practice.

Key Benefits of Pigging Systems for Your Project

  • Inline maintenance keeps the product moving without system shutdowns
  • Custom-built to match pipe diameter, pig dimensions, and service pressure
  • ASME U-stamped with complete test documentation and hydrotesting
  • Quick-opening closures reduce labor time and improve safety
  • Corrosion-resistant finishes extend product life in demanding environments
  • Full traceability and QA/QC documentation delivered with each order
  • Short lead times and responsive project coordination

Engineer’s Take: Designed for Field Integrity

Engineers specify our pig launchers because they’re engineered for real-world performance:

  • Sized for your pig and pressure class
  • Built from API-grade steel for mechanical strength
  • Precise CAD modeling is available for integration and layout planning
  • Instrumentation ports available for pressure monitoring or automation
  • Documentation packages include MTRs, weld maps, and hydrotest records

    • No guesswork. Every unit arrives with data that validates the design.

Project Manager’s View: Predictable, Field-Ready, and On Schedule

From planning through installation, our systems help you keep projects on track:

  • Pre-engineered fit means fewer RFIs and no retrofit risk
  • Responsive engineering support keeps timelines moving
  • Safe closures and access simplify routine maintenance
  • On-time delivery prevents scheduling bottlenecks
  • Clear documentation reduces approval cycles and install confusion

    • You’re not just buying a launcher—you’re gaining a partner who understands the cost of delay.

Related Products to Support Your Pigging System

Pair these components with a pig launcher and receiver to stabilize and protect your pipeline:

Let’s Build Your Pig Launcher to Spec

Need a pig launcher that meets your pressure class, fits your system, and delivers on schedule? We’re ready.

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