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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Structural Supports Custom Designed for a Liquefaction Project

May 22, 2017

Structural Supports Custom Designed for a Liquefaction Project

Type: Structural Supports
Size: 6″ x 12″ to 6″ x 18″
Material: Carbon Steel with HDG Finish
Testing: Standard Q.C. Inspection

Piping Technology & Products custom designed these structural supports to provide base support for pipes at a liquid natural gas (LNG) facility in Louisiana. The supports are fabricated from carbon steel with a hot-dipped galvanized finish. Sizes range from 6″ x 12″ to 6″ x 18″ and all supports underwent a quality control inspection prior to shipment.

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108" Dia. Storage Tank and Containment Tank Designed for a Chemical Plant in Texas

January 11, 2015

108

Sweco Fab., a division of PT&P, designed and fabricated this 108″ diameter storage tank that will be submerged inside a containment tank for a chemical plant in Texas. The storage tank is fabricated from 1/2″ thick SA516-70 carbon steel and is 240″ in length. The containment water tank measures 295″ L x 124″ W x 128″ H. The storage tank is designed for 100 PSIG at 130°F internally and 15 PSIG at 130°F externally. The storage tank was hydro tested for 1 hour at 150 PSI and a full radiography test was done prior to shipment.

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Over 8,000 Instrument Stands Designed for an LNG Facility

December 22, 2014

Instrument Stands Designed to Mount Instrument Panels in an LNG Facility

PT&P manufactured custom instrument stands designed to mount instrument panels in an LNG facility located in Australia. We are supplying 8,000 assemblies fabricated from carbon steel with a hot-dipped galvanized finish. The average size measures 68″ in length, 22″ in width and 82″ in height. Total weight to be shipped is over 800,000 pounds. All assemblies underwent quality control inspection prior to shipment.

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Upcoming Webinar: ASME Vessels, Pig Launchers, Strainers and More from Sweco Fab, Inc.

December 18, 2014

This webinar is over, please view the recording at: Webinars

** Webinar is worth 1 PDH Credit for TX Professional Engineers

Pig LauncherAttend a live Webinar introducing Sweco, Fab. Inc., the ASME design and fabrication division of PT&P. Learn how we design these components for high temperature, high pressure, and/or corrosive environments. Discover the different materials used based on a variety of applications. View some of the very unique and intricate Sweco custom designs, and corresponding technical drawings. Sweco designs and manufactures Pressure Vessels and Tanks, Pig Launchers and Receivers, Duct Work, Transition Pieces, Bellmouth Reducers, Spectacle and Line Blinds, Air Intake Stacks and Dampers, Conical Strainers, Instrument Stands and other custom fabricated products.

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.

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Pig Launchers and Receivers Designed for a Crude Export Pipeline

February 21, 2014

Pig Launchers and Receivers Designed for a Crude Export Pipeline

Sweco Fab., Inc. designed and fabricated pig launchers and receivers with closure for a crude export pipeline in Mexico. These units were custom designed per ASME CODE B31.3 and weigh 2,400 lb. They are 120″ in length and have 12″ dia. minor barrels and 18″ dia. major barrels. The barrels are fabricated from API 5L Gr. B pipe, the flanges from SA105 and the closures from carbon steel. The launchers are designed for operating temperatures that vary from -20°F to 212°F at 943 psig. They were radiography tested and hydro-tested at 1,415 psig for two hours.

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