Blog Category: ENGINEERED SPRING SUPPORTS | Piping Technology & Products, Inc.

Big Ton Spring Supports Designed for an Oil Refinery in Australia

May 29, 2018

Type:	Big Ton Spring Supports
Material:	A36 carbon steel \| Hot-dipped Galvanized \| SS Slide Plates
Design:	16,276 lb. Ld. \| 0.196″ Up Travel

The big ton spring support is used for supporting large heavy units such as compressors, vessels and pumps in power and petrochemical plants. The housing and frame are fabricated from carbon steel and the spring coils are coated in neoprene. Polished stainless steel slide plates are added to the top of the load flange, which reduces the coefficient of friction to allow for lateral movement. This big ton spring support is designed to allow limited movement of 0.196″ upwards, with an operating load of 16,276 lb. This big ton spring enabled the client to reduce engineering man hours by avoiding the redesign of the piping system due to limited space requirement.

C-Type Constant Springs Designed for a Chemical Plant in Italy

January 29, 2018

Type:	Constant Spring Supports
Size:	14″ x 19″ x 64″
Material:	A36 Carbon Steel
Design:	2 1/2” to 5” Total Travel and 7,681 lb. Load
Testing:	Standard Load and Travel Tests

PT&P custom designed and manufactured C-Type constant spring supports for a chemical plant in Italy. The constants were designed for travel from 2 1/2” to 5” and are specified to carry a load of 7,681 lb. They are fabricated from A36 carbon steel and have a physical size of 14″ x 19″ x 64″. The supports were designed for max deviation of 6%. The standard load adjustment is 10%. However, this unit was designed with capability of up to 20%, while the standard load deviation is 4%. This constant was custom designed to allow for single pin connection with negligible constant frame at the pin connection. A multi-position locking device was installed, and standard load and travel tests were performed to ensure quality and precise performance.

Custom Designed Big Ton Spring Supports for a Propane Dehydrogenation Application in Texas

November 20, 2017

Type:	Big Ton Spring Supports
Size:	42″ x 24″ x 26 1/2″
Material:	Carbon Steel
Design:	94,261 lb. Load & 0.085” Movement
Testing:	Standard Load Tests

PT&P custom designed big ton spring supports for a propane dehydrogenation application at a chemical plant in Texas. The components within this assembly include the spring housing, coils, name plates, pressure plate, and load indicator. While both assemblies measure 42” L x 24” W x 26-1/2” H, it was modified based on independent specifications for operating loads and movement to accommodate a load of 94,261 lb. and 0.085” of movement. This type of support is ideal for applications, such as supporting pressure vessels that combine very heavy loads with thermal expansion because of the stability they provide. The big ton was tested in the load cell to insure proper operation throughout the entire working range of the coils.

C-Type Constant Spring Supports for a Refinery in Texas

July 10, 2017

Type:	Constant Spring Supports
Size:	25″ in Height x 17-38″ in Length x 11-5/8″ in Width
Material:	A-36 Carbon Steel with HDG Finish
Design:	981 lb. to 1828 lb. load \| 2-1/2″ to 3″ Vertical Movement Range
Testing:	Standard Load and Travel Testing per MSS Standards

Piping Technology & Products, Inc. designed and manufactured C-type constant spring support assemblies for a refinery in Texas. The constants are 25″ in height, 17-3/8″ in length, and 11-5/8″ in width. Their load capacities range from 981 lb. to 1828 lb., with a vertical movement ranging from 2-1/2″ to 3″. All constants were fabricated from A-36 carbon steel with a hot-dipped galvanized finish, and underwent standard load and travel testing per MSS Standards prior to shipment.

F-Type Variable Springs for a Refinery in Oklahoma

June 26, 2017

Type:	Variable Spring Supports
Size:	70 7/8″ tall and 17 3/4″ wide
Material:	Carbon Steel and PTFE Slide Plates
Design:	30,980 lb. load/2,083 lb. spring rate
Testing:	35,000 lb hydrotest

PT&P manufactured variable spring supports for a refinery in Oklahoma. These F-Type PTP-6 spring cans are 70 7/8″ tall and 17 3/4″ wide. They are completely fabricated from carbon steel with PTFE slide plates welded on the load flange and internal guide. They are designed for an operating load of 30,980 lb. .with a spring rate of 2,083 lb./in. and 0.49″ of movement. These variables were hydrotested with a load of 35,000 lb. prior to shipment.

Big Ton Spring Supports Designed for a LNG Facility in Australia

February 7, 2017

Type:	Big Ton Spring Supports
Size:	19-5/8″ x 19-5/8″ x 15″
Material:	Hot-dipped Galvanized Carbon Steel \| A193 Gr. B7
Design:	Movements: 3/16 ” – 1/4″ \| 16,619 lb. Load
Testing:	Load Cell throughout Operating Range

These big ton spring supports were designed for a liquid natural gas (LNG) plant in Australia. They were selected because the application required supporting heavy loads as the supported equipment undergoes thermal expansion during operation. The assemblies are fabricated from hot-dipped galvanized carbon steel. The travel stop rods and nuts material is A193 Gr. B7. The units measure 19-5/8″ x 19-5/8″ x 15″ and are capable of supporting loads up to 13,619 lb. while accommodating movements from 3/16″ to 1/4″. The big tons were tested with a load cell to insure proper operation throughout the big ton’s operating range.

PT&P Variable Spring Supports

January 10, 2017

Learn more about the variable springs constructed at Piping Tech.

Variable Spring Hangers Designed for an Ammonia Plant

January 9, 2017

Type:	B-Type Variable Spring Hanger
Size:	PTP-2 Standard Variable Spring
Material:	Hot-dipped Galvanized Carbon Steel
Design:	0.955″ Downward Movement \| Cold Load: 12,183 lb. \| Hot Load: 14,723 lb.
Testing:	Hydro-load Test: 15,750 lb.

PT&P designed and fabricated variable spring hangers for an ammonia plant in Louisiana. This B-Type PTP-2 variable hanger is fabricated from carbon steel and hot-dipped galvanized to protect against corrosion. The variable is designed for 0.955″ of downward movement and an installed load of 12,183 and an operating load of 14,723 lb. This variable included a 1″ forged steel clevis and the assembly was tested at a hydro-load of 15,750 lb.

Variable Spring Supports Designed for a Furnace Application in Oklahoma

September 26, 2016

Type:	Variable Spring Supports
Design:	1,765 lb. Load \| +/- 5% Spring Rate
Material:	Carbon Steel with Red Oxide Primer
Testing:	Standard Spring Rate & Calibration Tests

PT&P custom designed variable spring supports for a furnace application at a Nitrogen Facility in Oklahoma. The furnace springs are fabricated from carbon steel and painted with a red-oxide primer to help prevent corrosion. The spring supports are designed to support loads up to 1,765 lb. With a spring rate calibrated to be within +/- 5% of the theoretical value.

Big Ton Spring Supports Custom Designed for an LNG Facility

September 13, 2016

Type:	Big Ton Spring Supports with PTFE Slide Plates
Size:	29-7/8″ x 29-7/8″ 16-1/2″
Material:	Carbon Steel with HDG Finish \| PTFE, 25% Glass Filled Slide Plate
Testing:	Tested in a press connected to the load cell

PT&P custom designed big ton spring supports with PTFE slide plates for an LNG facility in Australia. The components within the spring housing include load columns, travel stops, spring coils and lifting lugs. Each assembly is designed for an operating load ranging from 16,276 lb. to 34,479 lb. and will allow for movement between 0.16″ and 0.24″. They are fabricated from hot-dipped galvanized carbon steel and measure 29-7/8″ x 29-7/8″ x 16-1/2″. The big ton spring support is ideal for applications that have very heavy loads with thermal expansion because of the stability they provide throughout the range of travel. These supports were tested in the press connected to a load cell to insure proper operation throughout the entire working range of the coils.