Cast Steel Check Valve Dealers in Tagore Nagar, Mumbai

Swing check valves are designed to close quickly and automatically with positive shut off in either horizontal or vertical (flow up) pipe runs. Inherently, swing check valves have a low pressure drop and are best suitable for velocity applications. Our closure design allows our swing check valve to close completely even and remain closed with no flow when installed in a horizontal pipe run.   BODY The body is full ported and spherical in form. The design utilizes large radiuses which allow for the stresses, flow resistance and turbulence to be kept to a minimum. Bosses are provided for optional drains.   BODY-COVER JOINT Standard body-cover joints of our swing check valves aremachined as follows:PRESSURE CLASS JOINT DESIGN150, 300, 600 Male-and-Female900* & over Ring Type Joint*Pressure Class 600 also available in Ring Type Joint.EMFLO can supply any style of gasket required by customer.   HINGE ASSEMBLY The hinge arm pivots on the hinge pin which is located near the disc’s center of gravity. Body enetration for the hinge pin is sealed with a soft steel gasket and flanged plug. The hinge arm is designed to withstand the shock load of quick closing to insure a longer life and continued shut-off. The hinge arm also has an integral disc stop that provides a positive stop in the open position.   DISC Each disc’s seating surface is precision ground and mated to the seat ring for insurance of a positive shut off. The disc is secured to the hinge arm with the disc nut and pinned to prevent disengagement during service. We can provide either integral or overlaid seat facings at customer’s request.   SEAT RING Seat rings are designed to greatly reduce and/or prevent any turbulence and avoid damages due to corrosion. The seat rings are forged or rolled in one piece and then seal welded and overlaid, if required. After welding and all required heat treating, the seat ring faces are machined, thoroughly cleaned and inspected before leaving for assembly.   BOLTS AND NUTS For normal service conditions, ASTM A194 Class 2H and ASTM A193 Grade B7 nuts and stud bolts are furnished. If specified for high temperature service conditions, ASTM A194 Class 4 and ASTM A193 Grade B16 nuts and stud bolts are furnished. Standard bolting furnished for our stainless steel valves consists of ASTM A194 Class 8 and ASTM A193 Grade B8 nuts and stud bolts. FAC can supply any bolting as requested by the customer.   END CONNECTIONS Our standard production covers valves with:• Flange ends with Raised Face (RF), Flat Face (FF) or Ring Type Joint (RTJ) that conform to ANSI B16.5.• Butt-welding ends (BW) that conform to ANSI B16.25.• All face-to-face/end-to-end dimensions conform to ANSI B16.10.• Other special end connections are supplied according to customer’s requirements.   ACCESSORIES/OPTIONAL DESIGNS Counterweight features are available as an accessory. Tilting disc or hydrofoil designs are also available to meet the customers requirements. Drains and bypasses are available as specified by the customer.     For 1,500 # and 2,500 # and special material details will be provided on request.