Special PTP-100 E-Type constant spring supports were custom designed to support boiler trim piping for steam generating in an upper thermal power unit. The constants measure 5-3/8″ W x 16-3/4″ L x 23-1/2″ H. They are highly customized to meet the customer’s space requirements and operating method to eliminate the hanger rod from shifting, allowing it to move only vertically while going from cold to hot position. Standard constant assemblies of this size, are about 50% larger and the hanger rod would shift horizontally as the travel reaches the hot position. These constants are designed for loads ranging from 72 lb. to 92 lb. and movements ranging from 10″ to 11-1/2″ downward. Standard load and travel tests were conducted prior to shipment

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Shock Control, Restraint & Support Devices Webinar
Date: Thursday, May 1, 2025 - Register for 10:00 am OR 2:00 pm
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Live Webinars are 1 PE/PDH Credit for TX Professional Engineers
Explore the various applications of snubbers, sway braces, and sway struts in piping systems and equipment. Learn how these products help prevent pipe system failure due to seismic loads, flow transients, wind loads, safety valve thrust loads, or pipe rupture. Discover the various tests performed within PT&P’s facility to ensure product quality, including cycle testing, travel testing, and load testing. Finally, view the value-added services offered by PT&P and rest assure that your shock control, restraint, and support device needs can be covered by our 24×7 web-based emergency services, field services, and quick turnaround time when you need it most.
Upcoming Webinars:
May 8th: U.S. Bellows - Expansion Joints In-depth Webinar 10:00 am OR 2:00 pm
May 15th: Pipe Support Engineering & Design Webinar 10:00 am OR 2:00 pm
May 22nd: Fabric Expansion Joints Webinar by U.S. Bellows, Inc. 10:00 am OR 2:00 pm

Online Course
Piping Design and Analysis Influence on Pipe Support Selection and Design
Surveying a piping system? Need to change a current system?
This course is also great for…
• New Engineers, Management and Operations
• Field, Process, Maintenance and New Engineers
• Piping and Piping System Designers and/or Instructors
*This online course is approved for 8 hrs. P.E. Credits