Mechanical Snubbers Designed for an Industrial Chemical Plant in Brazil

March 11, 2019

Mechanical Snubbers Designed for an Industrial Chemical Plant in Brazil

Type: Mechanical Snubbers
Size: Length: 40-3/8” to 60-3/4″
Material: Carbon Steel | Hot-dipped Galvanized | Paint
Design: 1,000 lb.  – 6,000 Load | Stroke: 4″ – 5″

PT&P designed mechanical snubber assemblies for an industrial chemical plant in Brazil. This project included mechanical snubber assemblies along with, insulated, constant, variable, and structural supports. The operating load ratings are from 1,000 lb. to 6,000 lb., and lengths range from a 40-3/8” to 60-3/4″ pin to pin. The snubbers have a 4” to 5” of stroke. All the assemblies were designed with a carbon steel pipe extension pipe, transition plate, heavy hex nuts, and adapter brackets. The snubbers are hot-dipped galvanized and painted to protect against corrosion. Visual tests and pull test were performed.

Read More

Sway Braces Designed for a Mechanical Equipment Supplier

May 14, 2018

Sway Braces Custom Designed for a Mechanical Equipment Supplier

Type: Fig. 555 Sway Braces
Size: 34-7/8” to 42-1/4″
Material: A36 carbon steel | Hot-dipped Galvanized
Design: 17,827 lb. Ld. | 12″ Travel | 7,200 lb. Spring Rate

PT&P custom designed Fig. 555 sway braces for a mechanical equipment supplier in Canada. The sway braces are fabricated from carbon steel, hot-dipped galvanized and range in length from 34-7/8” to 42-1/4″. The largest sway brace was designed for an operating load of 17,827 lb., a design travel of 12″ in either compression or extension and a spring rate of 7,200 lb. per inch. The smallest sway brace was designed for an operating load of 200 lb., a design travel of 9″ in either compression or extension and a spring rate of 1,800 lb. per inch.

The specified loads and/or movements exceed those of PT&P’s standard sway brace; therefore, these sway braces required a custom design and fabrication. Each sway brace was configured with a unique combination of carbon steel, spring coils, housings and internal components to accommodate the non-standard loads and movements.

Read More

Hydraulic Snubbers Designed for a Steam Generator in Mexico

February 26, 2018

Hydraulic Snubbers Designed for a Steam Generator in Mexico

Type: Hydraulic Snubbers
Size: 24″ up to 30″ Pin-To-Pin | Cylinder Dia. 1.5″ to 3.25″
Material: Carbon Steel
Design: 3,000 lb. to 20,000 lb., with a 6″ Stroke
Testing: Standard Quality Control

PT&P designed Fig. 510 AD short strut hydraulic snubbers for a steam generator at a facility in Mexico. The snubbers ranged in length from 24″ up to 30″ pin-to-pin with cylinder diameters of 1.5″ to 3.25″. A total of 48 snubbers were fabricated from carbon steel and designed for an operating load raging from 3,000 lb. to 20,000 lb., with a 6″ stroke. Snubbers are used for systems where unrestrained thermal movement must be allowed except during cyclic disturbance. Hydraulic snubbers are designed to protect the piping system when a sudden, heavy load is applied (such as an earthquake of high intensity), which can cause serious vibrations leading to damage and possible failure of the piping system.

Read More

Mechanical Snubbers for a Refinery in Oklahoma

May 5, 2017

Mechanical Snubbers for a Refinery in Oklahoma

Type: Mechanical Snubbers
Size: Size MSA-10, 36″ OAL, and 30 1/2″ Pin-To-Pin
Material: Carbon Steel with HDG Finish
Design: Operating load of 15,000 lbs and a 6″ Maximum Stroke
Testing: Standard Load Tests

Piping Technology & Products supplied these mechanical snubbers with two end brackets, fabricated from carbon steel with an HDG finish for a refinery in Oklahoma. They are size MSA-10, 36″ OAL, and 30 1/2″ pin-to-pin. The snubbers are designed for an operating load of 15,000 lbs and have a 6″ maximum stroke. Standard load tests were performed prior to shipment. Mechanical snubbers have two modes of operation. In passive mode, i.e., motion caused by thermal loads, the resisting mechanism is disengaged and the snubber “free wheels” with very low resistance. In active mode the mechanism is engaged, and the snubber limits the acceleration to a low threshold value.

Read More

Hydraulic Snubbers for an Ammonia Plant in Louisiana

November 23, 2016

Hydraulic Snubbers for an Ammonia Plant in Louisiana

Type: Hydraulic Snubbers
Design: 3,000-15,400 lb load/5″-12″ stroke
Material: Carbon Steel
Size: 31″ up to 148″ pin-to-pin and cylinder diameters from 2.5″ to 5″

Piping Technology & Products designed these hydraulic snubbers for an ammonia plant in Louisiana. The snubbers ranged in length from 31″ up to 148″ pin-to-pin and cylinder diameters from 2.5″ to 5″. They are designed for an operating load raging from 3,000 lb. to 15,400 lb. and have a 5″ to 12″ stroke. Hydraulic snubbers are designed to protect the piping system when a sudden, heavy load is applied (such as an earthquake of high intensity), which can cause serious vibrations leading to damage and possible failure of the piping system.

Read More

Sway Strut and Pipe Clamp Assemblies Designed for an Energy Combustibles and Lubricants Facility

November 18, 2016

Sway Struts with Pipe Clamps for Energy Combustibles and Lubricants Facility in Argentina

Type: Sway Strut and Pipe Clamp Assemblies
Design: 4,500 lbs load
Material: A-36 Carbon Steel
Function: Let the pipe sway within a certain radius

Piping Technology & Products designed these Fig.2110F sway struts and pipe clamp assemblies for an energy combustibles and lubricants facility in Argentina. The sway struts are 60″ in length with clamp sizes of 16″ and 12″ diameters. All components were fabricated from A-36 carbon steel. They are designed for an operating load of 4,500 lb. The sway struts are designed to let the pipe sway within a certain radius. Read More

Hydraulic Snubbers Designed for LLDPE Chemical Plant

June 17, 2016

Hydraulic Snubbers Designed for LLDPE Chemical Plant

These Fig. 511 AD long hydraulic snubbers were created for a linear low-density (LLDPE) chemical plant in Louisiana. The snubbers with two (2) rear brackets range in length from 34-⅝” to 49”. They are designed with spherical, self-aligning ball bushings that allow for + 5° of angular motion or misalignment.  The snubbers can handle maximum loads varying up to 5520 lb. Cylinder sizes are 1-½” and 2-½” and have a 6” stroke. The hydraulic fluid is petroleum based and the seals are a mix of buna-nitrile and polyurethane and the pressurized hydraulic reservoir allows mounting in any spatial orientation. The snubbers are painted with a primer that utilizes zinc filled powder manufactured by Tnemec. Ⓡ  The formulation for the primer is Series H90-97 | Tneme-Zinc.

Read More

Shock Control, Restraint & Support Devices Webinar

June 9, 2016

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

140,000 lb. Load Adjustable Hydraulic SnubbersExplore 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-turn around time when you need it most.

The featured presenter, Jerry Godina has over 13 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.

Read More

Custom Sway Strut and Pipe Clamp Assemblies for an LNG Plant in Australia

January 22, 2016

Custom Sway Strut and Pipe Clamp Assemblies for an LNG Plant in Australia

PT&P fabricated and designed 52 of these custom sway strut assemblies for a liquid natural gas plant in Australia. These are manufactured from carbon steel with 304 stainless steel pins. The pipe sizes range from 2”-72” diameter, with a total length ranging from 27” to 137”. The sway struts are fabricated to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in another direction. These sway struts have an operating temperature of 650°F and are designed for operating loads ranging of 650 lb. to 120,000 lb.

Read More

Special Sway Struts Designed for an LNG Plant in Australia

January 11, 2016

Special Sway Struts Designed for an LNG Plant in Australia

PT&P custom designed and fabricated 67 mini sway strut assemblies for a liquid natural gas plant in Australia. The sway struts are fabricated from galvanized carbon steel with 304 stainless steel pins. They are 14-7/16” long and capable of a 62,200 lb. load with an operating temperature of 650°F. The sway struts are fabricated to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in another direction.

Read More
Top