These A-36 carbon steel constants have a hot dipped galvanize finish and designed for an oil refinery. They have a single lug suspension and can support a piping load of 5,031 lb. The dimensions are 36 1/2″H x 21″L x 11 5/8″W. This type of spring support is designed to support the pipeline from above using a carbon steel clamp.
Pictured above are F-type variable spring supports designed for a local chemical plant. They are designed for a vertical movement of 1/8″ and an operating load ranging from 638 lb. to 2,612 lb. Fabricated using A-36 carbon steel components from our shop inventory, these variables include PTFE, 25% glass filled, slide plates to allow for translational movement. Each spring is preset to the specified installed load prior to shipment.
These molecular sieve vessels are designed for a biofuel production line. They are fabricated from stainless steel with carbon steel base rings. The vessels have an outside diameter of 24″ and measures 214″ in length. The maximum allowable working pressure is 123 PSIG @ 400ºF. These ASME Code pressure vessels were hydro-tested at 160 PSIG and x-ray tested prior to being shipped to the customer.
This constant spring support is fabricated from A-36 carbon steel and measures 39″ long x 29″ high x 11″ wide. This replacement support is designed to carry 11,000 lb. of piping load with a travel of 2 1/2″ upward. The limiting design factor was to stay within existing structural boundaries while allowing the constant assembly to move through its designed travel range.
The overall length of each sway strut is 96 inches. The pipe hanger assembly is designed to control 20,000 lb. of piping load during the system’s thermal expansion and contraction.
These sway struts have a ball joint located at each end connected by an extension rod that controls the piping system through its complete range of thermal piping movements. It is used to restrain movement of piping in one direction while providing for movement due to thermal expansion or contraction in another direction.
These limit stops are fabricated from carbon steel with stainless steel inner components. These supports function to prevent excessive stress on the pipe by limiting motion due to earthquakes or other similar events.
They range in size between 20 7/8″ and 22 7/8″ from pin to pin. The load ranges between 12,500 lb. and 21,100 lb. The limit stops are passive restraints that are designed for a maximum thermal expansion of 5″, but can be preset for any specified amount of movement. They will be utilized in an oil refinery overseas.
Designed for a pipe size of 84″, this pre-insulated pipe support is able to withstand temperatures up to 1,220ºF. It is a wide base sliding hot shoe with up to 2″ of axial travel and 3″ of lateral travel. It can support loads up to 33,721 lb. and the support itself weighs approximately 1,900 lb. This high temperature pre-insulated pipe support will be utilized in a styrene plant.
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This custom pipe clamp will be used in conjunction with a hydraulic snubber to restrain pipe movement during extremely high disturbances. It is designed to support the pipe where two heavy duty flanges join. The yoke, lugs, and strap sections of the clamp are carbon steel, and the clamp bolts and load bolt/pin are stainless steel.
The outer diameter of the clamp section is 16″, and the inner diameter is 10″. The upper lugs are fabricated from 3/4″ thick plate with a 2-1/4″ diameter load bolt. The maximum load for this custom clamp is 68,000 lb.
Fabricated from A-36 carbon steel, these PTP-4 A-Type variable spring supports measure 6 5/8″ OD x 19 9/16″ in length with an installed load of 596 lb. They have a spring rate of 56 lb/in., and a downward travel of 1.375″. These supports are designed to suspend from a rod that is threaded through the upper portion of the variable (see Fig. PTP-4). This particular design is generally used to keep the variable further away from the beam to avoid interference.
These stainless steel trunnions are designed to support a vertical pipe used in an LNG plant. The trunnions will support stainless steel pipes with diameters ranging between 24″ and 42″. The diameter of the trunnions ranges in size from 12″ to 22″. The overall length is 34″. All of the weld seams were 100% dye-penetrant tested before being shipped to the plant.
These 200-C type constants are fabricated from A-36 carbon steel and are designed for a load ranging between 17,800 lb. and 25,600 lb. The constants have a downward travel ranging between 12 1/2″ and 16″. This support maintains a constant load throughout the designed travel. The diameter of the spring coil housing is 21″. The design includes a universal locking device capable of locking the hanger rod at any desired position. It also includes lifting lugs that aid in installing the constant in the field. Standard load and travel testing was performed before shipping to a steam plant.
We are now hosting Webinars regarding products and services by Piping Technology & Products, Inc. and our wholly owned subsidiaries:
- U.S. Bellows, Inc.
- Sweco Fab, Inc.
- Pipe Shields, Inc.
- Anchor Darling, Ent.
Collectively we offer: Expansion Joints, Variable Spring Hangers, Constant Supports, Big Tons, Snubbers, Sway Braces, Sway Struts, Pipe Hanger Hardware, Clamps, Rods, Slide Bearing Plates, Misc. Steel Fabrication, ASME Code Pressure Vessels, Fabricated Pipe Shoes, Guides, Anchors, Instrument Supports, Pipeline “Pigs”, Launchers/Receivers, Insulated Shoes/Supports-Hot/Cold, Hold-down Clamps, “High Temp” Furnace Bags, Anchor Bolts/Embeds, Bellmouth Reducers, Inspection, Analysis, or Training Services, Field Service and Stress Analysis/Product Testing.
The three pig launchers measure 127″, 172″, and 189″ in length and are designed for 263 PSIG at 185ºF. The pipe diameters of each unit measure 10″, 18″, and 20″, respectively. Two of the pig launchers/receivers are fabricated from carbon steel and one from stainless steel. All of the launchers/receivers were hydro-tested to ensure product quality.
Piping Technology & Products, Inc. designed and fabricated rotational anchor pre-insulated pipe supports for a fluid processing plant in Kuwait. The supports range in size from 24″ to 34″ in diameter and are capable of withstanding 12,500 lb. of vertical load. The bottom of the hot shoe is fabricated from carbon steel and the top from stainless steel.
These supports include stainless steel inner thrust plates that function as an anchor to prohibit the pipe from rotating within the shoe. These supports are designed for steam super heater lines and provide thermal insulation for the pipe in order to prevent heat loss and condensation.
– Diameter: 48″ O.D.
– Capacity: 1,100 Gallons
– Material Fabricated From: Carbon Steel
– Design Temperature & Pressure: 285 PSIG at 100ºF
– Testing: Hydro-Tested and held for 1/2 hour at 428 PSIG
This big ton spring assembly is designed for a local area refinery, and is fabricated from carbon steel components with a painted finish. The top of the load flange has three PTFE, 25% glass filled slide plates. The base is 96″ x 18″ and the installed height is 24″. This big ton spring will be utilized to support heavy (in excess of 76,000 lb.) loads where a standard variable spring would be undersized. The big ton spring design includes an array of parallel coils within one frame to produce large load carrying capacity while maintaining the same spring rate. The assembly is designed to withstand an operating load of 76,800 lb. and has a downward travel of 0.894″.
Prior to fabrication, each of the coils were individually tested to insure correct spring rate and load capacity. After fabrication, the entire assembly was tested throughout the entire load and travel range.
This pressure vessel measures 84″ in length and is fabricated entirely of SA516-70 carbon steel. It is designed for low temperature environments and has a design pressure of 117 PSIG at 500ºF. A hydrostatic test was completed at 205 PSIG prior to shipment.
The top sheet of graphite measures 1/2″ x 11 1/2″ x 115 1/2″. This particular design also includes a bottom sheet of graphite with the same dimensions, but only 1/4″ thick. Each individual graphite sheet is bonded to a hot dipped galvanized backing plate with a 1/2″ lip all around for full welding. In an application where the pipe has large amount of movement due to thermal expansion, slide plates can be utilized to eliminate friction between the pipe support and the supporting member. Graphite is used when the slide plate must function at high temperatures. These particular graphite slide plates are designed for 1000ºF.
The duct work has an outside diameter of 90 inches and is 38 feet long. The duct assembly is fabricated entirely from ASTM A516-70 carbon steel. The assembly has two support bases and stiffening rings that provide strength and rigidity for the duct work. The assembly is a section of air supply duct in an Ammonia Plant.