Spirax Sarco FT450 3" High Capacity Float Thermostatic Steam Trap DN80 66719

The Spirax Sarco Spirax Sarco 3" (DN80) and 4" (DN100) FT450 is a high capacity float and thermostatic steam trap. It adjusts the position of the double-seated main valve by means of a float so that condensate can be continuously discharged at the same rate as it enters the trap. Air that accumulates in the trap during startup or operation is discharged through the built-in bimetal air vent into a standpipe connected downstream of the main valve mechanism housing. The trap can be used in superheated steam systems that meet the design conditions for pressure housings and is capable of operating at any backpressure lower than the inlet pressure, with the capacity determined by the differential pressure (inlet pressure minus outlet pressure). Spirax Sarco's FT450 Carbon Steel Float Trap (3",4") features an internal float mechanism for continuous drainage at saturation temperatures and a built-in thermostatic venting valve for non-condensable gases. Product Type typology FT450 PMO 450 psig caliber 3", 4" grout 3": NPT, SW, flange; 4": flange material (that sth is made of) Carbon steel body, stainless steel internal parts Component Material Item Part material (that sth is made of) 1 valve body Carbon Steel ASTM A216 WCB 2 bonnets Carbon Steel ASTM A216 WCB 3 Bonnet Gasket Stainless Steel Graphite 4 Bonnet bolts Alloy Steel ASTM A193 GR B7 5 Lock washers steel (chemistry) 6 Main valve assembly Stainless steel AISI 300 Main valve mechanism gasket plumbago Main valve mechanism bolts stainless steels 7 float Stainless Steel ASTM A240 Type 304 8 Bonnet hole (3/4" NPT) steel (chemistry) Drain hole (3/4" NPT) steel (chemistry) 9 flangeless wrought steel 10 Flange bolts Alloy Steel ASTM A193 GR B7 11 Drain valve assembly stainless steels shortselling stainless steels Venting Seal stainless steels 11A venting element Stainless steel & bimetallic (RAU type RR) 12 evacuation tube stainless steels Displacement and Differential Pressure The graphs show discharge rates at different differential pressures, *In this area, the trap discharge rate may exceed the connected piping flow rate. typical application Reboilers, heat exchangers and other large process equipment; large absorption refrigeration; coupled with Spirax Sarco 4" mechanical pumps. restrictive condition PMO Maximum Working Pressure 450 psig (31 barg) TMO Maximum Operating Temperature Bimetallic option: 650°F (343°C) @ 450 psig (31 barg); 750°F (400°) @ 375 psig (26 barg) Pressure (psig), Temperature Corresponding Area Limits This product should not be used in this area; use of this product in this area may cause damage to internal components Valve body design conditions PMA 450 psig/max 650°F 31barg/max 343°C Maximum permissible pressure 425 psig/700°F 375 psig/750°F 29 barg/371°C 26 barg/400°F TMA Maximum Allowable Temperature 750°F/0-375 psig 400°C/0-26 barg Product Description The trap is of the institutional float type with a carbon steel body, stainless steel internals, and horizontal connections. The bottom of the body has a mounting bracket with drilled feet. The trap has a built-in thermostatic air vent, the body is horizontally separated, and all internal parts are fully serviceable and do not require disassembly of the piping inlet or outlet. mounting The trap should be mounted under or near the equipment drain, with a strainer mounted on the front, and a full bore shutoff valve for servicing. The mounting bracket is bolted to a horizontal support. See the Installation and Maintenance Guide for details. protect and maintain The product can be serviced in-line without disassembling the piping. The trap must be completely isolated upstream and downstream before any maintenance is performed. Traps should be disassembled, inspected, and cleaned at regular intervals to remove the main valve assembly and air venting valve. For detailed information, see the Installation and Maintenance Guide included with the product. weights 485lb (220kg) Technical Data Download 450.pdfTI-2-3041-US FT450 Float Trap in Carbon Steel (3", 4").pdf