Blog Category: ENGINEERED SPRING SUPPORTS

Constant Spring Supports for a Leading Energy Transportation and Midstream Service Provider
October 27, 2020

Constant Spring Supports Custom-Designed for a Leading Energy Transportation and Midstream Service Provider

PT&P custom-designed constant spring support assemblies for an energy facility in Canada. These 100–E Type (layout B) constants were supplied with an extended hanger rod and fabricated from A36 carbon steel with 5160 alloy steel coil springs. They are designed for an operating load from 2,370 lb. to 9,240 lb., and movements from 1-1/2” to 8-1/4”. The dimensions are 12” W x12” L x 30” H and 14” W x 19” L x 53” H. Load and travel tests along with a quality control inspection were conducted prior to shipment.

Read More

U-Type Constant Spring Supports with Stainless Steel Slide Plates
September 30, 2020

 U-Type Constant Spring Supports with Stainless Steel Slide Plates

PT&P custom-designed U-type constant spring supports for an oil refinery in Texas. Constants can be utilized in refineries within blocks such as hydrogenation units, naphtha desulfurization units, and fluid catalytic crackers. The spring’s frame is manufactured from A36 carbon steel and hot-dipped galvanized to protect against corrosion. For instances where there was axial and lateral movement, 240 Gr. 304 slide plates were installed on the load flanges of the constants. The constants supplied are designed for an operating load ranging from 1,085 lb. up to 17,480 lb. and horizontal travel from 2.5” to 6”. The overall dimensions range in size from 17” H x 20” W x 31” L to 28” H x 26” W x 66” L. Load and travel tests per industry standards were performed prior to shipment.

Read More

PT&P Designed and Fabricated Variable Springs for a Refinery in Texas City
July 20, 2020

PT&P Designed and Fabricated Hanger and Base-Type Variable Springs, Constant Spring Supports, and Sway Struts for a Refinery in Texas City

Type: G-Type Variable Spring Support Assemblies
Design: Operating Loads from 3000 lb. to 4000 lb.
Movement of 1”
Material: Carbon Steel
Testing: Load & Travel Test |  Q.C. Inspection

Pictured here is a Type G variable spring hanger assembly designed for an operating load up to 4000 lb. and 1” movement. This type of support assembly is formed by welding two standard spring assemblies to the ends of a pair of channels. The Type G assembly is especially adaptable for avoiding interference in spaces where the headroom is limited. The assemblies are fabricated from carbon steel and underwent spring load tests before shipment.

Read More

Constant Spring Supports Designed for LNG Service in Louisiana
July 7, 2020

Constant Spring Supports Designed for LNG Service in Louisiana

Type: B-Type Constant Spring Supports
Size: 11-5/8 W x 41” L x 19” H to 21” W x 88” L x 38” H
Material: A36 Carbon Steel | Hot-dipped Galvanized
Design: Operating Load Range: 3,170 lb. to 48,400 lb.
Movement of 3” to 8”
Testing: Q.C. Inspection | Load and Travel Tests

PT&P manufactured B-type constant spring supports for LNG service in Louisiana. These constants are fabricated from A36 carbon steel with alloy steel 5160 spring coils. The constants are designed for an operating load range of 3,170 lb. to 48,400 lb., and movements from 3” to 8”. They range in size from 11-5/8 W x 41” L x 19” H to 21” W x 88” L x 38” H. To avoid delivery delay, a standard frame was paired with an oversized coil and coil housing. The lugs were rotated 90 degrees from the standard to allow the hanger to swing beyond +/- 4” of side-to-side swing. Standard load and travel tests were performed prior to shipment.

Read More

F-Type Variable Spring Supports Designed for a Petrochemical Plant in Canada
May 18, 2020

F-Type Variable Spring Supports Designed for a Petrochemical Plant in Canada

Type: F-Type Variable Spring Support Assemblies
Size: Heights up to 12-3/4”
Spring Casing Diameters from 6-5/8” to 8-5/8”
Base plates from 9″x 9″ to 13-1/4” x 13-1/4″
Design: Operating Temp.: -49°F to 122°F
Operating Loads from 697 lb. to 6093 lb.
Movements of 0.04″ to 0.2”
Material: Hot-dipped Galvanized Carbon Steel
Testing: Load & Travel Test |  Q.C. Inspection

Piping Technology and Products, Inc. recently designed and manufactured F-Type variable spring supports with internal load columns for a petrochemical plant in Canada. The variables are fabricated from carbon steel that is able to accommodate low temperatures (A516-GR. 70N). The operating temperature ranges from -49°F to 122°F while supporting operating loads from 697 lb. to 6093 lb. and movements of 0.04″ to 0.2”. They are designed to accommodate installed heights up to 12-3/4”, with spring casing diameters from 6-5/8” to 8-5/8”, along with base plates from 9″x 9″ to 13-1/4” x 13-1/4″ for installing either by bolting or welding in the field. Load and travel tests, along with visual Q.C. inspections were performed before shipment.

Read More

F-Type Constant Spring Supports Designed and Manufactured for Gas Plant
April 20, 2020

F-Type Constant Spring Supports Designed and Manufactured for Gas Plant

Type: F-Type Constant Spring Supports
Size: 36″- 87″ Length | 24″ Height
Material: A36 Carbon Steel | HDG | SS Slide Plates
Design: 13,500 lb. Load | 250°F | 17.5″ Travel
Testing: Q.C. Inspection | Load and Travel Tests

PT&P custom-designed multiple horizontal F-Type constant spring supports for a gas plant in Saudi, Arabia. The constants are provided with stainless steel slide plates and custom-designed for 17.5” total travel. They are fabricated from carbon steel, hot-dipped galvanized and painted to withstand a highly corrosive environment. The assemblies are 24” in height, 36” – 87” in length, designed for an operating temperature of 250°F and loads up to 13,500 lb. Load tests and dye penetrant testing was conducted prior to shipment.

Read More

Constant Spring Supports Designed for up to 9-1/2” of Travel
November 18, 2019

 

Constant Spring Supports Designed for up to 9-1/2” of Travel

Type: Constant Spring Supports
Size: 29″ L x 14″ W x 18-3/4″ H |  76″ L x 26″ W x 37-3/8″ H
Material: A36 Carbon Steel | HDG | Neoprene
Design: 124 lb. to 10,570 lb. Load | 3-1/2″ to 9-1/2″ Travel
Testing: Q.C. Inspection | Load and Travel Tests

PT&P designed and manufactured U-Type and D-Type constant spring supports for a facility in Mexico. The constants frames are fabricated from A36 carbon steel and have a hot-dipped galvanized coating. The spring coils are alloy steel and have a neoprene coating. The dimensions range from 29” L x 14” W x 18-3/4” H to a max of 76” L x 26” W x 37-3/8” H. The 200-U-Type constants were supplied with graphite plates on the load table. The supports range in load from 124 lb. to 10,570 lb. The total travel ranged from 3-1/2” to 9-1/2”. Standard Q.C., load and travel tests were performed.

Read More

Variable Spring Supports Designed for a Highly Corrosive Environment in Peru
July 1, 2019

 

Variable Spring Supports Designed for a Highly Corrosive Environment in Peru

Type: Variable Spring Supports w/ PTFE Slide Plates
Size: PTP-4 | 9.5″ – 11.5″ Height
Design: 1/8″ Upward & 3/16″ Downward Travel
Material: HDG Carbon Steel | Gloss Aliphatic Polyurethane Topcoat | PTFE, 25% Glass Filled Slide Plates
Testing: Standard Load Testing & Q.C. Inspection

Piping Technology & Products, Inc. recently designed and fabricated F-type variable spring supports for a plant in Peru. The variables are fabricated from carbon steel, hot-dipped galvanized and a gloss aliphatic polyurethane topcoat was applied for corrosion protection. PTFE, 25% glass filled, slide plates are bonded to the top of the load flange to reduce the friction caused by lateral movement. The variables range from 9.5″ to 11.5″ in height and are designed for a travel range of 1/8″ upward to 3/16″ downward. To ensure quality, standard load testing was performed prior to shipping.

Read More

Custom Big Ton Springs Designed for a 122,000 lb. Load for a Chemical Plant
May 20, 2019

Custom Big Ton Springs Designed for a 122,000 lb. Load for a Chemical Plant

Type: Big Ton Spring Supports
Size: 52-3/4″ L x 38-3/4″ W x 91″ H
Design: 121,916 lb. Load | 3/4″ Upwards Movement
Material: HDG Carbon Steel | Neoprene Coated Springs
Testing: Load Calibration Test | Hydro-tested

PT&P custom designed a big ton spring support for a chemical plant in Pennsylvania. The big ton will be used to support a vessel in excess of 121,916 lb. and a movement of 3/4” upwards. The dimensions for this unit are 52-3/4” L x 38-3/4” W x 91” H. The big ton spring support is designed to support large and heavy units such as compressors, vessels, and pumps in power and petrochemical plants. They are designed to allow limited movement in confined areas. By doing this, it saves the customer from having to entirely redesign the piping system and saves thousands of dollars. The big ton has an internal guide and special pedestal which was designed to meet the required height of the spring and withstand the hydro-test load. A load calibration test was performed before shipping.

Read More

Variable Spring Hangers Designed for a Plant in Texas
April 22, 2019

Variable Spring Hangers Designed for a Plant in Texas

Type: B-Type Variable Spring Supports
Size: PTP 100 & 200 | 3′ – 8′ ft. Height
Design: 4,000 lb. – 17,000 lb. Loads
Material: HDG Carbon Steel | Neoprene Coated Springs
Testing: Standard Load Test | Q.C. Tests

Piping Technology and Products, Inc. recently designed and fabricated B-Type variable spring supports for a plant in Texas. The operating loads range from 4,000 lb. to 17,000 lb. The variable springs are fabricated from galvanized carbon steel, have neoprene coated steel spring coils, and are designed to operate in environments up to 750°F. They have an overall height range from 3 ft. to 8 ft″. To ensure quality, standard load tests were performed prior to shipment.

Read More
Top