DN65 Dual Plate Non-Return Valve, API 594, 2-1/2 Inch, Class 300 LB, ASTM A352 LCB Body, Wafer Ends.
1842040 Dual Plate
Check Valve
Design Standard: API 594, API 6D
Structure: Spring Loaded, Dual Plate
Nominal Size: 2-1/2 Inch, DN65
Nominal Class: 300 LB, PN50
Bore Type: /
End Connection: Wafer, Lug, Double Flanged
Operation: /
Body Material: ASTM A352 LCB, ASTM A890 4A, ASTM A351 CF8, ASTM A216 WCB, ASTM A351 CF8M, ASTM A890 5A, ASTM B148 C95800, Titanium Alloy
Trim Material: ASTM A216 WCB, ASTM A352 LCB, ASTM A351 CF8, CF8M, ASTM A890 4A, 5A, ASTM B148 C95800, Titanium Alloy.
Face to Face: API 594
Test and Inspection: API 598
Applications: Water and Wastewater Treatment, Oil and Gas Industry, Chemical Processing, Power Generation, HVAC Systems, Marine Industry, Fire Protection Systems, Food and Beverage Industry.
Body Material: Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel, Al-bronze, Titanium
Normal Diameter: 1/2 - 48 Inch (DN15 - DN1200)
Pressure Range: 150 - 2500 LB
Working Temperature: -196°C - +450°C
Operation: Not Applicable (Manual or actuated available for special request)
End Connection: Wafer, Lug, Flanged-RF, RTJ
The weight is only around 20% of equivalent swing check valve.
Swing Check Valve VS Dual Plate Check Valve
2. Retainerless Body
Bosseal dual plate valve is one-piece design without hole through the body, there is no external pins to retain the disc/stem, so that no external leakage point, it’s a good choice for critical service.
The two plates are actuated by two separate high torsion springs and it ensure a quick closing, lower water hammer effection, longer working life and better sealing performance.
Metal Seat: STL(CoCr alloy) overlay on body seat, suitable for high temperature.
Soft Seat: Viton, EPDM, NBR, PTFE(not recommend).
The plate size and shape are well designed to have light weight, good flow efficiency, low pressure loss, fast operation and better sealing performance under low pressure.
