SUZHOU RSF VALVE is one of leading manufacturers of oil and gas industry valves, we have more than 15years experience in producing cast steel API 594 Dual Plate Check Valve ( wafer type check valve, lug type, flange and BW ends), API 600 gate valve, BS1873 globe valve, non return valve of BS1868 swing check valve, ball valve, butterfly valve, et.
RSF VALVE's API 594 Dual Plate Check Valve (Type A) is one kind of important non return valve which prevent back flow from fluid. It allows the fluid to flow only in the desired direction. The design is such that any flow or pressure in the opposite direction is mechanically restricted from occurring. Dual-plate check valves are bonnetless and mounted between pipe flanges. In this case, the valve includes two spring loaded half-moon shaped discs that rotate around their shaft.
RSF VALVE's non return valve of API 594 Dual Plate Check Valve is used to prevent backflow of fluid, which could damage equipment or upset the process. The dual plate wafer check valve (lug, flange, BW) is especially useful in protecting a pump in liquid applications or a compressor in gas applications from backflow when the pump or compressor is shut down. Swing check valve is also applied in process systems that have varying pressures, which must be kept separate.
RSF VALVE ACADEMY
API 594 Type "A" check valves are short face-to-face, and can be wafer, lug, or double- flanged; single-plate or dual-plate; or gray iron, ductile iron, steel, nickel alloy, or other alloy designed for installation between Classes 125 and 250 cast-iron flanges as specified in ASME B16.1, between Classes 150 and 300 ductile-iron flanges as specified in ASME B16.42, between Classes 150 and 2500 steel flanges as specified in ASME B16.5, and between Classes 150 and 600 steel pipeline flanges as specified in MSS SP-44, or steel flanges as specified in ASME B16.47.
API 594 Type "B" bolted-cover swing check valves are long face-to-face, and can be flanged or butt-welding ends of steel, nickel alloy, or other alloy material. End flanges shall be as specified in ASME B16.5, or ends shall be butt-welding as specified in ASME B16.25.
Standard:
Basic Design: API 594, API 6D, ASME B16.47
Face to Face: ASME B16.10, API 6D, EN558, ISO5752
Flange Ends: ASME B16.5, ASME B16.47, EN1092
BW Ends: ASME B16.25
Pressure Test: API 598, EN12266-1
Designmerkmal:
Dual Plate Check, Springs Loaded, Retainerless
Wafer, Lug, Flange Ends or BW Ends
Internal Shaft or External Hinge Pin
Size Range: 2" to 48" (DN50 to DN1200)
Pressure Class: Class 150 to Class 2500 (PN16 to PN420)
Material:
Body: Carbon steel WCB, LCB, LCC, Alloy steel WC1, WC6, C5, C12, C12A, Stainless steel CF8, CF8M, CF3, CF3M, CF8C, Duplex Stainless Steel 4A, 5A
Hinge Pin: F6a, F304, F316, F304L, F316L, F321, F51
Trim: HF HFS, API 600 2009 Table 8 INCONEL SPRING VITON SEAT
Painting: Epoxy, RAL9006
Optional:
Special Class according to ASME B16.34
NACE MR 01-75
Thanks for your selection of RSF VALVE's API 594 Dual Plate Check Valve! If you have any inquiries of our series products for oil and gas industry valves such as API 600 gate valve, API 6D trunnion mounted ball valve, non return valve of BS1868 swing check valve, BS1873 globe valve, please don't hesitate to contact with uns!
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