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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.

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Hold-Down Pipe Clamps Designed for a 36″ Diameter Natural Gas Pipeline
April 8, 2019

Hold-Down Pipe Clamps Designed for a 36" Diameter Natural Gas Pipeline

Type: HD-2 Hold-Down Pipe Clamps
HD Size: 36″ Dia. x 12″ W x 8-7/16″ H
Wedge Size: 23-3/16″ L x 6″ W
Material: Carbon Steel | PTFE
Testing: Standard Q.C. Tests

PT&P designed 50 HD-2 hold-down pipe clamps with wedges for a natural gas pipeline in Texas. They were fabricated from carbon steel and include PTFE slide plates. The hold-downs are designed for a 36″ pipeline, and are 12″ wide by 8-7/16″ tall. The wedges are 23-3/16″ long by 6″ wide. They are designed for an operating temperature on 400°F, and have an adjustable height. Standard quality control test were performed prior to shipment.

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Custom-Designed Hot Shoes
March 26, 2019

Pre-Insulated Pipe Supports Custom Designed for High Temperature Pipelines at a Refinery in Louisiana

Type: Pre-Insulated Pipe Supports “Hot Shoes”
Size: 18″ Length | 16″ Dia. | 4″ Insulation
Material: A240 Gr. 304 L Stainless Steel | Firetemp®
Design: 25,000 lb. – 50,000 Load
Testing: Standard Q.C. Inspections

Piping Technology & Products, Inc. recently designed and manufactured pre-insulated pipe supports for a high-temperature pipeline at a refinery in Louisiana. The “hot shoes” are 16” diameter, include 4” of insulation and are 18” in length. They are fabricated from A240 Gr 304 L stainless steel and the insulation is Firetemp®. These hot shoes are custom designed to support loads from 25,000 lb. to 50,000 lb. at an operating temperature of 1,800°F. Standard tests were performed for a three-week rush job.

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Bronzphite® Slide Plate Assemblies for a Power Plant
February 25, 2019

Structural and Bronzphite® Slide Plate Assembly for an Exhaust Duct at a Fossil-Fired Power Plant

Type: Structural Support with Slide Plates
Size: 1/2” x 5/18”
Material: Carbon Steel | Hot-dipped Galvanized | Bronzphite®
Design: 2,000 lb. Load | 730°F Temperature | 3,500 lb. Hydro-test

Piping Technology & Products, Inc. custom designed this structural support with Bronzphite® slide plates for an exhaust duct application at a fossil fuel-fired power plant in Louisiana. The Bronzphite measures 1/2” x 5/18” and it was attached to a stand that was manufactured in carbon steel with a galvanized finish. The assembly is designed for an operating temperature of 730°F, and an operating load up to 2,000 lb. Also, designed with a hydro-test load of 3,500 lb. Standard visual and dimensional tests were performed prior to shipment.

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FRP Wear Pads for Corrosion Protection on Uninsulated Piping Systems
February 18, 2019

FRP Wear Pads for Corrosion Protection on Uninsulated Piping Systems

Type: FRP Wear Pads
Size: Pipe Sizes: 2″, 3″, 4″, 6″, 10″, 12″, and 16″
Length: 4″, 6″, 10″, and 12″ (can provide sizes up to 48″)
Material: Vinyl Resins
Design: Up to 400°F
Testing: Standard Visual and Dimensional Tests

PT&P fabricated 323 FRP wear pads for an oil refinery in Texas. The wear pads are for pipe sizes of 2″, 3″, 4″, 6″, 10″, 12″, and 16″, and vary in lengths of 4″, 6″, 10″, and 12″. They were fabricated from vinyl resins, and are designed for operating temperatures up to 400°F. The FRP pads are secured to the pipe using an epoxy adhesive to protect the uninsulated pipe from the metal support structure. Standard visual and dimensional tests were performed prior to shipment.

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Closure Flange Support Hinges for Supporting Medium to Heavy Duty Blind Flanges
January 28, 2019
Permanent and Removable Hinges for Supporting a Medium to Heavy Duty Blind Flange
Closure Flange Support Hinges for Supporting Medium to Heavy Duty Blind Flanges

Presently, blind flanges are used to provide an airtight cover to various piping systems that include pipelines in the oil industry, heat exchangers, ships, tanks, etc.

Routine maintenance requires the heavy duty blind flange to be removed for cleaning and repairs. However, for these types of flanges, it is quite difficult to disassemble, clean and repair. It typically requires employing a forklift, crane, or other lifting devices. This can require excessive man-hours, and the alignment of the flanges can remain unpredictable.

PT&P introduced a closure flange hinge with specially designed self‐locking bolts and two self-lubricated hinge studs to support the blind flange when all the fastening bolts are removed for maintenance or replacement. The blind flange can be opened like a “door” with little effort. Our product opens up to 180 degrees, providing full accessibility to work on the pipeline, heat exchanger, or other equipment.

To solve the issues, PT&P invented two versions of closure flange hinges for blind flanges: temporary / removable hinge and permanent / fixed hinge

Portable hinges project amount   Portable hinge close up

PT&P recently designed 159 permanent and removable hinges for up to 72″ diameters, We can accommodate for larger sizes upon request.

View PDF Handout on Closure Flange Support Hinges

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Personnel Protection Shields, Designed and Fabricated by PT&P for a Local Refinery
January 14, 2019

Personnel Protection Shields, Designed and Fabricated by PT&P for a Local Refinery

View PDF on Personnel Protection Shields

Type: Personnel Protection Shields
Size: 11″ Dia. | Up to 48″ Lengths
Material: Carbon Steel | 2-Coat Paint System
Design: Operating Temps. Require Safeguarding Personnel

PT&P custom designed, fabricated and provided installation oversight for sixty-five personnel protection shields for a refinery in Texas. The personnel protection shields are used when insulating the line is not necessary, but operating temperatures require safeguarding personnel from coming into contact with the pipe. These shields are fabricated from carbon steel with a two-coat paint system. They are 11” diameter, and range in lengths up to 48”.

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300+ Cryogenic Insulated Pipe Supports (Cold Shoes) for LNG Service
November 26, 2018

300+ Cryogenic Insulated Pipe Supports Designed for an LNG Pipeline

Type: Cryogenic Insulated Supports
Size: Range: 6″ to 24″ Dia. Pipe
Material: Carbon Steel | Hot-dipped Galvanized | PUF
Design: 15,000 – 30,000 lb. Load | -112 F | +/- 2″ Movement

Over 300 pre-insulated pipe supports were custom fabricated for a cryogenic pipeline at an LNG facility in Louisiana. High density polyurethane foam was used for insulation, with thicknesses ranging from 2” to 4”. The cold shoes are for pipe diameters ranging from 6” to 24” and are fabricated from carbon steel with a hot-dipped galvanized finish. They are designed for temperatures down to -112°F, movements of +/-2” and operating loads ranging from 15,000 to 30,000 lb. Standard quality control tests were performed prior to shipment.

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Micarta Block Assemblies Designed for a Vessel Application
November 16, 2018

Micarta Block Assemblies Designed for a Vessel Application in Texas

Type: Insulated Support – Micarta® Block Assembly
Size: 2″ H x 12″ W x 81″ L
Material: Micarta® | PTFE, 25% Glass-filled
Design: -454°F | Visual / Dimensional Tests

PT&P designed Micarta® block assemblies for placement beneath the saddle support of a vessel at an oil refinery in Texas. These insulated supports measure 2” x 12” x 81” and include PTFE, 25% glass-filled material bonded to the top of the Micarta®. Micarta® consists of glass fabric with an epoxy resin, which provides great insulating characteristics and superior physical properties. The blocks are designed to prevent cryogenic temperatures down to -454°F from transferring past the base of the support to the supporting steel or foundation. Visual and dimensional tests were performed prior to shipment.

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