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Engineered Spring Supports — The Pipe Supports Blog

U-Type Constant Spring Supports Designed for an LNG Plant in Canada

May 6th, 2016 Comments off

U-Type Constant Spring Supports Designed for an LNG Plant in Canada

PT&P designed U-Type constant spring supports for an LNG plant in Canada. These are horizontal constants designed to support piping from below where the base plate is bolted directly to the top of the steel or the foundation using anchor bolts. These specific constant springs are designed to support an operating load of 67,420 lb. with 6” of total upwards travel. The constants are fabricated from galvanized carbon steel for protection against corrosion. Standard load and travel testing were completed to ensure the quality and performance of these constants.

300 Variable Spring Supports Designed for a Furnace Application at a Methanol Processing Facility

April 25th, 2016 Comments off

300 Variable Spring Supports Designed for a Furnace Application at a Methanol Processing Facility

PT&P designed and fabricated 300 variable spring supports for use in a furnace within a methanol processing facility in Mexico. We manufactured the ”housing” of these variable springs using seamless pipe (in order to prevent the springs’ coils from rubbing against the ”weld seam” of a standard pipe) so that the exact spring rate (+/- 5%) can be calculated without discrepancies or variations. The reason that an accurate spring rate is important is because furnace springs function as a ”scale” in order to determine the weight of the radiant coils within the unit. These springs are coated with red oxide primer to protect against corrosion. We manufactured these furnace spring assemblies for an operating load of 1,036 lb. and a movement up to 8 1/2″. Each spring is traceable to test data and tagged with its’ unique spring rate along with other standard information use for identification.

Pipe Supports and Expansion Joints for Furnace Applications Webinar

April 14th, 2016 Comments off

This webinar is over, view the recording in the webinar archives

Furnace SpringsJoin us for this Webinar focusing on the unique design aspects of pipe supports and expansion joints operating in furnace applications. See how these non-standard designs impact the overall construction and fabrication processes. Learn the differences between standard supports and those specifically used in furnace applications. View the in-depth testing processes and learn what to watch for during inspection and maintenance intervals.

The featured presenter, Jerry Godina has over 15 years experience as a pipe support designer and manages PT&P’s engineer training development program. He also inspects existing supports, consults on site remediation projects and oversees installation on a regular basis.

 

Compact Spring Supports Designed for an Oil Refinery in Minnesota

April 8th, 2016 Comments off

Compact Spring Supports Designed for an Oil Refinery in Minnesota

These compact spring supports were custom designed for an oil refinery in Minnesota. Typically, compact spring supports are used to support large loads but small movements relieving process equipment nozzles from overloading. In this case, the springs are designed to support loads of 5,605 lb., 4,747 lb. and 1,250 lb. and movements of 0.133” and 0.029” upward and 0.199″ downward, respectfully.

Compact spring supports utilize engineered Belleville (disc spring) washers. Since these spring supports contain disc springs, both the support housings and the springs contained in the housings are made from 304 stainless steel. Corrosion resistance is significantly increased by using this combination. Glass coatings can also be applied to both the housing and springs to make the support system virtually impervious. Each assembly underwent load testing prior to shipment.

Upcoming Webinar: Compact Spring Support

March 24th, 2016 Comments off

This webinar is over, view the recording at: http://info.pipingtech.com/compact-spring-support-webinar

PT&P partnered with Disc Spring Technology (DST) and is now manufacturing the compact spring support.

Disc SpringsThe Compact Spring Support Webinar will cover key objectives, background and leading industry problems related to process equipment nozzels (both rotating and non-rotating equipment). First we will review the challenges involved in design and analysis of piping with respect to process equipment nozzles. Secondly, we will discuss the types of chronic problems and failures related to process equipment nozzles and present (or introduce) the Compact Spring Support as a solution. During our discussion, we will explain why chronic problems with process equipment exist, describing current design practices as they relate to industry code standards and how the Compact Spring Support addresses these problems directly and effectively. And finally, we will take a quick look at DST technical data and sizing program.

 

Note: Time Zone is CST * Central Standard Time / GMT -5h

 

How to Adjust the Load and Height of a Big Ton Spring Support

March 21st, 2016 Comments off

Big Ton Spring Supports Designed to Support a Pressure Vessel in an LNG Facility in Australia

March 18th, 2016 Comments off

Big Ton Spring Supports Designed to Support a Pressure Vessel in an LNG Facility in Australia

These big ton spring supports were custom designed for an LNG plant in Australia. These units were designed with PTFE, 25% glass filled slide plates, and will be used under the saddle supports of a horizontal pressure vessel. The big tons were selected due to a combination of confined space, heavy loads, and thermal expansion. The units measure 28-3/8″ x 25-3/8″ x 13” and are capable of supporting a load up to 11,488 lb while accommodating a down travel of 0.31 inches.

Constant Spring Supports Designed for a Power Plant in New Mexico

March 7th, 2016 Comments off

Constant Spring Supports Designed for a Power Plant in New Mexico

PT&P fabricated constant support assemblies for a power plant in New Mexico. The constant assemblies will be used in conjunction with structural supports also provided by PT&P. Operating loads range between 7,000 lb. and 20,000 lb. and designed for movements from 10-1/2″ to 12″. All thread rods were coated with rust prevention compound and the constants were painted with Intergard® 475 HSS. The travel stops are wired to the constants frame and can be reused to lock the constant, preventing travel during plant maintenance or shutdowns. Standard load and travel tests were completed according to MSS standards prior to shipment.

Variable Spring Hangers Designed for an Upstream and Valve Project in Thailand

February 19th, 2016 Comments off

Variable Spring Hangers Designed for an Upstream and Valve Project in Thailand

PT&P designed and manufactured these variable spring hanger assemblies for an upstream and valve project in Thailand. The variables clamp sizes range from 6″ to 12″ diameter with installed heights ranging from 6-8/8″ to 12-1/4″ from the structure to the center of the pipe. The B-Type pipe hanger assembly uses coil springs to support the load and allow for some movement. They are furnished with one lug welded to the top of the spring casing which allows the assembly to be suspended from structural members for pipe support. All forty-seven variable spring supports were quality checked with a 100% spring coil deflection test and a load cell calibration to set the assemblies at the prescribed installed load.

Sign-up for our next Webinar on Variable Spring Supports

February 11th, 2016 Comments off

This webinar is over, view the recording in our webinar archives

Variable Spring Support Design, Size Selection, Installation & Maintenance Webinar

This Webinar will focus on the different types of variable spring supports and big ton variable spring supports. Learn about the special features available, in addition to the design of a variable support. View how the different coil configurations produce a unique response to an applied load and see how a spring assembly is loaded. Discover the basic steps in selecting a hanger design and the step by step process used to size a spring for your application. Learn about the different attachments, testing, and installation and maintenance procedures. View examples of failed supports provided by our Field Service Division and learn why they failed and how to prevent it. Gain knowledge of the valuable tips used when deciding to replace or re-calibrate a variable spring support, as well as adjustments, shutdown and isolation procedures.

 

Mailing: P.O. Box 34506, Houston, TX 77234-4506 Location: 3701 Holmes Road, Houston, TX 77051
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