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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Bulletproof Protection Shield (Critical Defense Product)

May 23, 2018

Bulletproof Protection Shield (Critical Defense Product)

  • Cost effective and easy to move
  • Compact function for storing
  • Minimal set-up for convenient access
  • Includes bulletproof riot shields
  • No maintenance required

PT&P designed and fabricated a full coverage bulletproof shield for an company in Texas. This critical defense product is cost effective, easy to move, can compact to store, and is convenient to access in a moment’s notice. Each unit includes four bulletproof riot shields conveniently stored in the slots provided. We hope the need never arises; however, this safety product is suited for pubic spaces such as schools, churches, concerts, public events, government agencies and functions. The function allows it to cover a doorway providing safety to inhabitants, allows for mobility and to exit safely from a unforeseen situation.

View video on this products’ function

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Screen Guides for a Cooling Tower at a Chemical Plant in Texas

April 10, 2017

Screen Guides for a Cooling Tower at a Chemical Plant in Texas

These screen guides were specially fabricated embed steel for a cooling tower at a chemical plant in Texas. They are 10″ in width and are 42″ in length, with bent “strip anchor bars” that are welded to the plate. These anchor bars are used to secure the plate into the concrete. All components were completely fabricated from A36 carbon steel with a galvanized finish. Standard quality control inspections were performed 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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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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42" Dia. Stainless Steel Storage Tank

July 21, 2013

42" Dia. Stainless Steel Storage Tank
Sweco Fab. designed and fabricated storage tanks from 1/4″ thick ASTM A240 grade 304 stainless steel. The tanks are 42″ in diameter, 72″ in overall length and 39-7/8″ in height. The legs are fabricated from SA36 carbon steel. They are designed for 1 PSIG and ambient temperatures. The storage tanks were hydro tested and leak tested for 8 hours prior to shipment.

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48" Dia. High Pressure Knock-out Drum Vessel

June 29, 2013

48" Dia. High Pressure Knock-out Drum Vessel

48" Dia. High Pressure Knock-out Drum Vessel

Sweco Fab, designed and fabricated a high pressure knock-out drum for a refining company in El Paso, Texas. The pressure vessel was designed according to ASME Section VIII Div. 1 codes with an overall height of 351″ and inside drum diameter of 48″. Its main application is to separate the vapor and liquid in the refining process. It contains a fire proofing skirt and a stainless steel demister pad that aids the separation process. The shell is fabricated from 3/8″ thick SA516 Grade 70 carbon steel, and the forge fittings are fabricated from SA105 carbon steel. The knock out drum has an operation temperature of 450°F at 125 psig, and underwent radiography, dye penetrant and hydro-tests before it was shipped.

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