PT&P designed and manufactured two hundred and thirty HD-2 hold down clamps to fit 6” to 8” pipes at a chemical refinery. These hold down clamps are used on pipe lines where there is a high temperature and great thermal movement requirements, they allow axial movement and restrain lateral movement at the same time. The clamps are fabricated from carbon steel with 3/32” PTFE, 25% glass filled, bonded to the radius. The plates are manufactured from three layers of materials; 3/32” PTFE, 25% glass filled, 1/2” thick fabric belting material and carbon steel.
PT&P designed and manufactured forty PTP 200- type “E” constant hanger assemblies with pipe sizes ranging from 36” to 62” for an oil refinery in Canada. These constant hanger assemblies are designed to support and allow vertical movement of the field pipe during thermal expansion. The constants have a load capacity of 2800 lbs. to 9200 lbs. and a 3”-7” travel range. To assure quality, standard load testing was performed on the constants prior to shipping. The assemblies’ components consist of a constant load hanger, a rod and a clamp. The constants are fabricated from ASTM A36 carbon steel and the rod and clamp were manufactured from ASTM A240, Gr. 304 stainless steel.
PT&P designed and manufactured two 240″ x 12″ x 1/2″ Embed Plates with 3/4″ diameter weld-stud projections to be used in a concrete reinforcement application. All components are fabricated out of carbon steel with a hot-dipped galvanized finish. The plates were shaped to form a 45″ x 90″ frame prior to shipment. The frames were braced with 2″ x 2″ x 1/4″ angles to ensure the frame maintained its structural shape prior to installation.
PT&P fabricated heavy-duty roller stands, 60” and 72” in diameter, to support large pipes in a cooling tower. The roller stands support loads up to 60,000 lbs. while allowing the pipe axial movement during temperature fluctuation. To reduce friction the rollers are fabricated out of machined carbon steel. The round bar and the stands are fabricated from A-36 carbon steel plate.
Sweco Fab, Inc. designed and manufactured a Flue Gas Duct, weighing over 66,000 lbs. and 18′-5 in length, for an oil refinery in Detroit, Michigan. The duct is designed to transport hot gases from the regenerator to the flue gas cooler. The walls are 1/2 thick with a high-density vibracast refractory lining. The rest of the unit was fabricated out of carbon steel SA-516-70 and is designed for a maximum pressure of 51 PSIG and maximum temperature of 1450°F.
Leak examinations where performed on the unit after fabrication, which included a10 percent x-ray test, a100 percent dye-pen test and a hydrotest at 77 PSIG.
PT&P fabricated various sized saddle supports used to support water mains for the city of Houston. The pipe saddles, ranging from 30”-72” in length and 12” in width are made to cover 1/3 of the pipe’s circumference. They are made of A-304 stainless steel with a neoprene backing.
These saddles are used to provide a sliding surface between metal water mains and concrete base supports at fault crossings. The neoprene backing helps to dissipate any shock loads and provides an anti-skid surface at the fault crossing locations.
PT&P recently designed and manufactured PTP-6 Type G variable springs in size PTP 6-00-G for a power plant project in Colorado. These variable springs are constructed from carbon steel with movement ranging from 1” to 2” and loads of 73 lbs and 52 lbs, respectively. They were tested prior to shipping for load and movement performance by using calibrated load cells.
Do you see a need for variable springs in your piping system? Get pricing today!
Adjustable & Welded Instrument Components
Piping Technology & Products, Inc. offers a complete line of adjustable and welded instrument supports in various mounting styles. Our instrument supports may be used independently or with secondary components to construct a custom support system. please refer to our catalog for details and ordering information.
PT&P custom designed and fabricated a 27′ x 16′ x 21′ structural frame to be placed on the sea-bed for an offshore rig. This assembly will be used as an undersea cable support frame, capable of withstanding a load of 600 Kilonewtons (68,000 lbs for each pad). It is constructed of 8 tube-steel, a 10 channel, and a steel plate. The frame will remain stationary on the sea-bed and is designed to endure heavy wave action when lowered to or raised from the sea-bed.
Finite element analysis of the lifting lug on the structure was performed to verify load conditions. A trial fit-up of bolted sections was also conducted to ensure the structural frame will assemble easily before being placed in position.
PT&P designed and fabricated a Hold Down with wedge support for a 42” pipe. The entire assembly is PTFE, 25% glass filled, bonded and will be used to control and reduce pipe vibration at an LNG plant. Both the Hold Down and wedge support are made from A36 Carbon Steel and a fabric pad which is exceptionally suited for vibration impact and declination.
PT&P recently designed and manufactured sixteen PTP-200 C-type constants modified to fit in constricted areas near a furnace of a chemical facility. These constants are designed to travel from 5 1/2” to 19” and are specified to carry loads ranging from 245 to 924 lbs. They were fabricated from A36 plates with 4140 pins. Due to the proximity of the pipes and other equipment, the front part of the constant frame was cut to allow the pipe to move freely. Load and travel testing was performed to ensure quality and precise performance.
Piping Technology and Products, Inc. recently fabricated 22 Carbon Steel PTP 200-C type Horizontal & PTP 100-C type Vertical Constants with sizes from 3 to 27. The load capacity of the constants spans between 215 to 2650 lbs., with a travel ranging from 1” to 4”. The three bolt clamps are fabricated from stainless steel material A 240 Gr. 304 for 4″ to 8″ dia. pipes. The rod and turnbuckle were shortened on two of the constants in order to accommodate situations of small rod take out. Standard load and adjustment testing was performed.
PT&P recently designed and manufactured over 1,000 Coldshoes for an LNG Plant in Egypt. These shoes are designed to support loads up to 75,000 lbs. at an operating temperature of -350°F. They are customized to fit pipe sizes of 20”, 24”, 30”, and 36”. All Coldshoes are composed of stainless steel with a Micarta® insulator. Micarta® is a woven glass fabric laminated with epoxy resin. It is extremely high in mechanical strength, has low moisture absorption and dissipative factors, and has superior electrical characteristics which are exhibited over a wide range of temperatures and humidities.
Do you see a need for cold shoes in your piping system? Get pricing today!
The above design shows cryogenic supports with Permali® block. Permali® block is a laminated phenolic material from layers of wood impregnated under vacuum and heat with synthetic resin. These pipe shoes can be designed to restrain very high axial, lateral and vertical loads. These shoes are used for LNG pipeline sliding supports with TEF slide plates.
Do you require cryogenic pipe supports for a current or future project? Get pricing today!
Sweco Fab recently designed and manufactured two carbon steel sway struts with 2” adjustment capabilities for a cycle unit project. The sway strut is constructed of an 8” diameter pipe, 130 ¼” long, assembled with rod ends and brackets for an overall assembly length of 15’-0”. The 2” adjustment capability is accompanied by a load capacity up to 128 KIPS. Sway struts are used to restrain movement of piping in one direction while providing movement from thermal expansion or contraction in another direction.
PT&P designed and fabricated eighteen graphite slide plates for a refinery project in India. These plates are made of graphite sheets with thicknesses of 6mm and 12mm. The overall dimensions of the plates are 3/8″ x 19-11/16″ x 19-11/16″ and 3/8″ x 61″ x 61″. The plates will be tack welded on top of big ton spring supports in the refinery to minimize frictional effects.
Do you see a need for slide plates in your piping system? Let us price them for you today!
PT&P recently fabricated 22 Fig. 190 Type 3 riser clamps for suspending the vertical runs of pipe at the central power plant in Puerto Rico. The clamps are designed for 17″ and 24” pipes and have an overall length of 71″ and 87” respectively. Both designs have a bar stock size of 1.75″x10″ and load bolts of 2.75″ diameter. Utilizing gusset plates at the clamp’s bend radius allowed for the smallest, yet sufficient clamp stock size for the specified loads. The smaller clamp has an operating capacity of 14,000 lbs while the larger operates at 20,500 lbs. Chrome-Moy 387 Grade 22 bar stock was used with A193 Grade B7 bolting to accommodate high temperature operating conditions.
Do you see a need for riser clamps in your current or future project? Get pricing now!
Sweco Fab. Inc. recently manufactured 16 injection spray nozzle assemblies from INCO 625 material for a specific pressure application. Each nozzle is made up of a 1½ S/160 pipe. The quill construction is clog proof and utilizes the turbulence created by its unique design to achieve distribution of the injected liquid into the product flow.
Do you require spray nozzle assemblies as described above? Get pricing today!
PT&P recently designed and manufactured a support assembly with two PTP-2 Type C spring hangers and a special clamp support. The springs are designed for an 8,500 lb load and a maximum travel of 1″. The entire pipe hanger assembly, with a net weight of 860 lbs, was fabricated from Carbon Steel and A-387 GR. 22 Chrome. The springs were calibrated to determine the exact spring rate prior to adjusting to customer specifications.
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.