A36 for flanges and plates, A 106 for pipe, and for stud/nuts A193 B7
Material:
Carbon Steel
Testing:
Visual & Q.C. Tests
PT&P custom designed these Pipe Spools for a plant in Texas. pipe spools are relatively short assembly, consisting of a pre-determined length of pipe welded to a specified fitting (tee, elbow or reducer) or valve (gate or ball), with flanges typically welded at each end of the pipe. The materials used are carbon steel A36 for flanges and plates, A 106 for pipe, and for stud/nuts A193 B7. This order contained 2 pipe spools, ring retainer, pad eyes, & mount supports. Operating loads were 2200 lb. with standard shipping.
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.
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.
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
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
PT&P recently designed 159 permanent and removable hinges for up to 72″ diameters, We can accommodate for larger sizes upon request.
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”.
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.
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.
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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