Piping Technology and Products, Inc. fabricated 4702 carbon steel shoes for various pipe sizes ranging from 2” to 10”. As per customer request, the shoes are designed to accommodate 30 PSI compressive strength. A three-coat paint system was applied for corrosion protection. All supports were liquid dye-penetrant tested at 5% of welds.
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PT&P was called on by an energy center in Oklahoma to inspect failing pipe shoes designed for temperatures ranging from 650 to 1065 °F supplied by another company. After thorough inspection, PT&P’s field service representatives concluded that the problem was due to the existing pipe clamps’ inability to firmly grip the pipe during expansion. This exposed the pipes to atmospheric moisture, resulting in both heat loss and deterioration. To alleviate the situation, PT&P designed secured pipe clamps that were bolted and torqued such that the entire pipe shoe would move with the pipe’s expansion. PT&P’s field service team also provided on-site installation of the replacement pipe shoes. The entire process involved stripping of the existing damaged insulation, removal of the failing supports, and installation of new pipe shoes and insulation.
Over 160 pipe shoes were engineered, manufactured, and installed for this energy center. The fabricated pipe shoes, designed for pipe sizes ranging from 12 to 28″ in diameter, are equipped with special base plate and slide bearing plate combinations which allowed axial movement from 1/2″ to 7″ and lateral movement up to 10 1/2″. In addition, they were designed to support a maximum vertical and lateral load of 38,000 lb. and 7,600 lb. respectively.
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Piping Technology & Products, Inc. recently designed and manufactured 46 of these support assemblies for a cross-generating power station in South Carolina. These pipe shoes and assemblies are composed of carbon steel and accommodate pipe with diameters ranging in size from 18”-32”. All of these components are strong enough to support maximum installed loads of 8,000 lbs.
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Piping Technology & Products, Inc. designed and manufactured these Fig. 1400 pipe shoes for a power plant in Canada.
These Fig. 1400 pipe shoes are a combination of PT&P Fig. 900 and 400. These shoes are particularly made from carbon steel and graphite with 4” B.O.P (bottom of the pipe). They are used to control pipe movement by guiding. These shoes also prevent vertical and horizontal movement and allow axial movement. They are mainly used in power plants or areas where there is cyclical filling and emptying of the pipe.
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Piping Technology & Products, Inc. designed and manufactured these saddles for a power plant in Chad.
The saddles are comprised of bolt clamps, structural steel and vinyl pipe shields. They were built for bare pipes ranging in size from 2 24 and can accommodate temperatures from 29 degrees C. to 538 degrees C.
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Piping Technology & Products, Inc. designed and manufactured cylinder pipe guides for an energy center in Canada.
These guides, which are frequently referred to as spider guides, are designed to control lateral pipe movement and maintain the alignment of the piping through its axial and contraction cycles. A single piping run uses spider guides in number to avoid a fulcrum or an imposed lateral deflection on critical components.
These spider guides were designed for pipes ranging from 1″ to 20″ diameter with 1″ to 4″ of insulation. The components include carbon steel plates, stock clamps, angles and green-primer coated pipes. The outer shields have diameters ranging of approximately 6″ to 29-1/2″ with a bottom-of-angle to center-of-pipe dimensions of 3-1/8″ to 15-3/4″. The maximum design temperature for the spider guides is 750°F.
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Piping Technology & Products, Inc. designed and fabricated several pipe shoes with loads up to 75,000 lbs. respectively, for a 750MW power plant in Alabama.
The shoes are to support the cooling towers’ circulatory water system at the power plant. The majority of the shoes were designed for a 60″ line and 50,000 lb. load, and the remaining few were designed for a 78″ line and 75,000 lbs. of load. After extensive engineering hours and structure analysis, PT&P’s engineering department was able to produce a detailed design and 3-D model for the supports that would allow them to run electronic interface checks.
Piping Technology & Products, Inc., designed and fabricated a Figure 700 chrome-moly shoe for an 18″ pipe used to support high temperature lines at a power plant in Mexicali, Mexico.
The shoe’s length is 12″ and the pipe centerline distance was maintained at 17 3/8″ from the bottom of the shoe. The clamp was designed at 1065°F and the load was designed for 6965 pounds. The base and clamp plates are made of A387 GR.22 plate material and the u-bolt parts are made of A193 GR.B7 bar stock.
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Piping Technology & Products, Inc. fabricated cryogenic pipe supports designed for a 14-inch pipe at a LNG plant in Algeria. The pipe operates below minus 50 degrees F, therefore the pipe supports were fabricated from three different materials in order to accommodate the low temperatures. The upper part, which clamps on to the pipe, was fabricated from a stainless steel plate that retains its strength at low temperatures. The middle section is a laminated phenolic block made from layers of wood impregnated under vacuum with a synthetic resin. A crossed orientation of the hard wood fibers is used to provide extra strength. The laminated phenolic block, which is a poor conductor of heat, was bolted to the bottom plate of the galvanized carbon steel.
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Piping Technology & Products, Inc. manufactured over 2,000 high-strength, stainless steel pipe guides for a liquefied natural gas facility in Trinidad.
This high strength insulation is rare and mainly used for cryogenic applications. The guides range in a variety of sizes including 4-inch to 36-inch NPS and the fabrication included carbon steel base plates and stainless steel plates, nuts and bolts.