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  Experienced Manufacturer of Pipe Supports since 1978
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February 2010 News

February 5th, 2010 No comments

PT&P is Now Certified with Texas Board of Professional Engineers
Texas Board of Professional Engineers CertificatePiping Technology & Products, Inc. has been approved for registration with the Texas Board of Professional Engineers.

View Texas Board of Professional Engineers Certificate

In an effort to ensure safe engineering practices throughout the State of Texas, the Texas Board of Professional Engineers has acknowledged that Piping Technology & Projects meets the necessary qualifications to provide professional engineering services and has therefore awarded PT&P a certificate stating its eligibility.

164 Wide Base Sliding Insulated Supports for a Power Station

February 2nd, 2010 No comments
164 Wide Base Sliding Insulated Supports

164 Wide Base Sliding Insulated Supports

The hot shoes are fabricated from A-36 carbon steel with 304 stainless steel slide plates. The 18″ dia. hot shoe has a maximum vertical load of 5500 lb. and the 24″ dia. hot shoe is capable of loads up to 13,750 lb. All the supports in this project are designed for temperatures of up to 1200°F. In addition to the insulation, these supports are capable of sliding axially or laterally as part of the piping system.

Special U-Type Constant Spring Supports

January 19th, 2010 No comments
Special U-Type Constant Spring Supports

Special U-Type Constant Spring Supports

PT&P designed a constant load support system for a fluid tank with a load of 105,000 lb. over an area of 5′ W x 20′ L. To prevent twisting of the fluid container, the support system is designed to allow for “level” vertical movement. This was achieved by using a special system composed of three U-Type constant units. Each unit employs two springs working in parallel with a common large base plate and a load flange to support the entire 5′ width of the container.

Special U-Type Constant Spring Supports

The constants will support loads of 39,000 lb., 36,000 lb., and 30,000 lb., with a total travel of 4″ in the “upwards” direction. The spring coils were coated in neoprene, and all the other major components were hot dip galvanized to inhibit corrosion. These constants were constructed primarily from carbon steel with the use of stainless steel and PTFE, 25% glass filled slide plates.

Want to learn more about constant springs? Instantly view a past constant webinar today!
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78″ Long 200 C-Type Constant Spring Assembly for a Power Plant

January 12th, 2010 No comments
78" Long 200 C-Type Constant Spring Assembly
78" Long 200 C-Type Constant Spring Assembly

78" Long 200 C-Type Constant Spring Assembly

Each constant spring support is designed to carry a 27,200 lb. load and provide 13″ downward travel. Special spring coils are used in order to reduce the entire length of the pipe hanger assembly. The frame and all internal moving components’ geometry are optimized as well to reduce the overall size. In total, the frame and casing combination measure 78″L x 21½”W x 33¾”H. The customer requested frame modification for special lug locations.

Do you require constant spring assemblies for your plant? Get pricing today!
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Big Ton Spring Supports with Low Friction Rollers

December 29th, 2009 No comments
Big Ton Spring Supports with Low Friction Rollers

Big Ton Spring Supports with Low Friction Rollers

PT&P fabricated several big ton spring assemblies consisting of two different models for a refinery expansion project in India. The larger model has an operating load of 25,590 lb. and a design travel of .420″ up.

Big Ton Spring Supports with Low Friction Rollers

Low Friction Rollers

The smaller model has an operating load of 12,100 lb. and a design travel of .443″ up. The big tons will be utilized to support substantial vertical loads while simultaneously providing a large platform to accommodate axial movement of the piping system across the load flange. Low friction rollers are installed to reduce the sliding friction between the load flange and the bottom section of a pipe shoe.

Do you require big ton springs in your plant or refinery? Let us price them for you today!
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Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

December 15th, 2009 No comments
Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

Failed Constants

This initial order included PT&P’s field services division testing and recalibrating four constant spring supports not manufactured by PT&P. A preliminary inspection of the original constants revealed deformations in the spring coil housing. This is indicative of defective coils; therefore, before any load tests were conducted, inspection windows were cut into the spring coil cover to confirm the initial hypothesis (Figure 2). Inspection of the coils revealed complete deterioration with broken and missing sections of the spring. Subsequent inspections of the remaining three assemblies illustrated similar failures. The original constants were then disassembled (Figure 3) to determine the feasibility of replacing only the coils while utilizing the original frame/cam components.

Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

Failed Constants

The original spring coils were different in spring rate, length, and diameter than any standard PT&P coils; therefore, multiple coils were required to duplicate the overall function of the existing coils. Using multiple coils also required modifications to the existing frames. In an effort to expedite the overall delivery schedule, entirely new constant springs were manufactured in one week (Figure 1). The four new constants measure 53″ long, 13″ wide and 86″ tall. They have a 18-3/4″ diameter spring coil with a coil housing of 20-1/2″ diameter. The new constant assemblies are designed for an operating load of 13,332 lb., travel of 13″ upward and 2″ downward for a combined total travel of 15″. A load test throughout the total travel range was performed on each constant.

Want to learn more about constant springs? Watch a recording of a past constant webinar today!
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November 2009 News

November 25th, 2009 No comments

PT&P is Now ISO 9001:2008 Certified (11-23-2009)
Piping Technology & Products, Inc. is awarded the ISO 9001:2008 certificate by DNV Certification, a division of Det Norske Veritas (DNV), for the Manufacture of Hot and Cold Pipe Supports. This certificate proves that PT&P’s Quality Management System has been certified against the best practice standard and is compliant.

ISO 9001:2008

View ISO 9001:2008 Certificate

The latest version of standards, ISO 9001:2008 is created by the International Organization for Standardization (ISO), who set international requirements for Quality Management Systems. By conforming to the Quality Management System, Piping Technology & Products, Inc. demonstrates predictability of internal operations and the ability to meet customer requirements. While becoming certified, a company can identify the areas that are most critical to operations through management system audits. Once problem areas are identified, measured, managed and improved, customer satisfaction will rise, staff responsibility and motivation will also experience growth.

58″ Diameter High Temperature Rotational and Axial Stop Insulated Supports

September 1st, 2009 No comments
58" Diameter High Temperature Rotational and Axial Stop Insulated Supports

Quality Control Check

 

58" Diameter High Temperature Rotational and Axial Stop Insulated Supports

Rotational and Axial Stop Hot Shoe

Piping Technology & Products, Inc. manufactured high temperature rotational and axial stop insulated supports for styrene lines in a petrochemical complex. The supports have an overall outside diameter of 58″ and are capable of handling temperatures up to 1500°F. They are fabricated from a combination of carbon steel for the top and stainless steel for the bottom. The hot shoes include Belleville washers, an Inconel 800HT rotational insert assembly, and high density fire temperature insulation.

Want to learn more about pre-insulated supports? View a past pre-insulated support webinar!
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F-Type Variable Springs with Fully Adjustable Travel Stops

August 18th, 2009 No comments

F-Type Variable Springs with Fully Adjustable Travel Stops

F-Type Variable Springs with Fully Adjustable Travel Stops

 

Piping Technology & Products, Inc. manufactured a variety of F-type variable springs with loads ranging from 526 lb. to 33723 lb. These variable springs are fabricated from a combination of carbon steel and A193-B7 CroMoly steel with A304 stainless steel slide plates. The variable springs are modified to include fully adjustable travel stops. The first purpose of the adjustable travel stops is to aid by distributing the load evenly during the installation process. The second purpose is to allow spring adjustment to any load within the operating range.

Do you see a need for variable springs in your project? Get pricing today!
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Flue Gas Duct Damper

July 15th, 2009 No comments

 

Flue Gas Duct Damper

Flue Gas Duct Damper

This damper was fabricated from a combination of 304 stainless steel and Inconel®. It is designed as a shut-off damper to control the flow of flue gas in an ammonia plant. The damper will be connected to a motor-driven control system by the linkage shown in the picture. The overall dimensions are 10′ x 6′ with a weight of 2,200 lb. It was painted with standard inorganic zinc primer and top coat per customer specifications. The damper went through visual inspection, dye-penetrant, and functional testing before being shipped to the customer. Refractory lining, utilized to withstand the high temperatures, will be added during installation.

Do you have an application that requires a damper? Get pricing today!
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Mailing: P.O. Box 34506, Houston, TX 77234-4506 Location: 3701 Holmes Road, Houston, TX 77051
Our Subsidiaries: U.S. Bellows: Metallic & Fabric Expansion Joints, Bellows
Sweco Fab: ASME Vessels, Pig Launchers, Spectacle Blinds
 Pipe Shields: Pre-Insulated Pipe Supports, Slides, Guides & Anchors

Fronek Anchor/Darling
: Snubbers, Sway Struts & Sway Braces
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