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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Variable Springs for a Propane Dehydrogenation Unit in Texas

November 5, 2018

Variable Spring Supports for a Propane Dehydrogenation Unit in Texas

Type: Variable Spring Supports
Size: Accommodate Elevation Difference up to 11′-5″
Material: Carbon Steel | Hot-dipped Galvanized
Design: 20,000 lb. Load | 4,700 lb./in. Spring Rate

PT&P designed and manufactured over 50 variable spring supports for a propane dehydrogenation unit in Texas. The spring cans, rods, welded beam attachments, turnbuckles and clevises are fabricated from hot-dipped galvanized carbon steel. The variables can accommodate an elevation difference up to 11’-5” from the bottom of the steel to the connection of the pipe. They were designed for an operating load of 20,000 lb., a spring rate of 4,700 lb./in. and 0.007” upward movement. Standard load testing was conducted prior to shipping.

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Hold-Down Pipe Clamps with Slide Plates for LNG Service

October 19, 2018

HD-2 Hold-Down Pipe Clamps with PTFE Slide Plates Designed for an LNG Plant in Australia

Type: Hold-Down Pipe Clamps
Size: 8″ Dia. Pipe
Material: Carbon Steel | HDG
Design: Up to 400°F Temperatures

PT&P designed and manufactured standard HD-2 hold-down pipe clamps for an LNG plant in Australia. They are fabricated from hot-dipped galvanized carbon steel and include PTFE slide plates. The hold-downs are designed for 8″ diameter pipe and an operating temperature up to 400°F. The HD-2 is a restraint type hold down which allows axial movement while restraining lateral movement.

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Constant Spring Supports Custom Designed for a Power Plant in Egypt

October 9, 2018

Constant Spring Supports Custom Designed for a Main Stream System at a Power Plant in Egypt

Type: Constant Springs & Alloy Clamp Assemblies
Size: 48″ H x 57″ L x 24″ W | 36″ dia. Clamp
Materials: Carbon Steel with HDG Finish | Alloy
Design: 1070°F | 7-1/2″ Total Travel | 24,712 lb. Load
Testing: Load and Travel Test

PT&P custom designed and manufactured constant spring supports for a main stream system at a power plant in Egypt. The constants include alloy clamps designed for a 900 mm (approximately 36” dia.) pipe. They are 48” H x 57” L x 24” W and designed for an operating temperature of 1070°F, with 7-1/2” total travel from the cold position. The constants are fabricated from A36 carbon steel and include a hot-dip galvanize protective coating. They are designed for an operating load of 24,712 lb. The constants have been modified to accommodate a specialized spring coil and modified casing. Standard travel and load tests were performed prior to shipping.

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