U-Type and F-Type Constant Spring Supports
Piping Technology & Products, Inc. designed, manufactured and delivered a total of 8 constants to a power plant in Mexico. The designs consisted of 4 Horizontal U-Types Upthrust (Figure 1) and 4 Vertical F-Types (Figure 2) that are to support 24-inch diameter pipes. Each consisted of different sizes. The constants are designed for loads of 2,839 lbs. to 8,963 lbs., for Total Travels ranging from 7 to 3 inches. Constants were painted CZ-11 per customer request.
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40" Diameter, Alloy Yoke Clamp
PT&P specially designed and manufactured a heavy duty, 40-inch diameter, alloy yoke clamp (cut from a 6″ thick plate) for a Power Plant in Mississippi. The clamp was designed for a 70,000 lb load and is to support a 40″ diameter, high pressure main steam line. The u-bolt was made of a 3″ diameter bar. In order to prove the design of this clamp, Finite Element Analysis was used to simulate the loads and stresses that it may experience in the field. The model shows the stresses at every point by a color coding system.
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Custom Pipe Support Assemblies For An Oil Refinery In Mexico
Custom Pipe Support Assemblies
Piping Technology and Products designed and built 24 custom pipe support assemblies to meet the unusual needs of an oil refinery in Mexico. The pipe hanger assemblies each consisted of a 200 E-type constant spring support and a cradle assembly. The constants are designed for loads of 9856 lb. to 13,288 lb., and for total travels ranging from 3.5″ to 5.5″. Operational conditions dictated that the constant springs have settings for emergency and start-up, in additional to the standard settings of cold for shipping, and hot for normal operations.
The cradle assemblies attached to the constants are to support pipes with operational temperatures of 1070°F to 1100°F. Thus while the constants could be made of A-36 steel, the assemblies could not. The pipe saddle itself was made by splitting a section of A387-11 chrome alloy pipe. The other support components were all made of 304 stainless steel. This includes a 1-3/4″ Eye Rod, two 27″ I.D. U-bolts, and two 33″ lengths of 3″ diameter SCH. 80 pipe.
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Cryogenic Pipe Anchors For A Gas Refinery
Inside of the Pipe Anchor
Piping Technology & Products, Inc. manufactured cryogenic pipe anchors for gas refinery in Savannah, Georgia. The pipe anchors were fabricated with stainless steel and insulated with polyurethane foam. In order to prevent cold pumping, better known as temperature driven moisture penetration, polyurethane foam was poured around a stainless steel reinforcing pad. The ten cryogenic pipe anchors were fabricated to support 4-inch, 8-inch and 12-inch pipes. PT&P’s pre-insulated pipe supports department is devoted to the production of pipe insulation productions for both hot and cold applications.
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