FEATURES
Wafer type, light weight and suitable for the limited space of piping. Spring is installed inside the valve.Shock and noise are reduced by any possible water-hammer.Rubber seat ensures the perfect seal.Horizontal and vertical installation is applicable.Widely used for the basic piping, water, sewerage and variousSPECIFICATION
DESCRIPTION | Material |
DESIGN | API 594, API 6D |
PRESSURE CLASS | ASME 125LB-1500LB(40A-1800A) |
BODY, PLATE MATERIAL | A126,A536,A216WCB,A351CF8,CF8M,CF3,CF3M,Duplex,Monel,CA15 |
SPRING MATERIAL | STS316WPA,Inconel X-750 |
VALVE TEST | To API 598,KS B2304 |
FLANGES | To ASME16.5 & B16.47,KS B1511 |
TYPE | WAFER,LUG,DOUBLE FLANGED |
APPLICATION | Chemicals,Power Generation,Pulp and Paper,Mining,Water and Waste Water, Oil and Gas |
SPRING SELECTION GUIDE
Standard SpringSuitable for the line pressure of 0.298 MPa through 0.89MPa
without any pressure loss and the upward flow direction of
vertical installation.
Low Coil SpringIdeal for gas with the line pressure of 0.1 MPa and under.
High Coil SpringSuitable for the line pressure of 0.88 MPa.
APPLICATION
Dual Plate Check Valves have been used successfully in following plants
Petroleum RefineryOil & Gas PipelinePulp & Paper MillChemical PlantSteel IndustryShipbuildingPower GenerationWater SystemGeneral IndustryADVANTAGE
Face-to-face dimensions for Dual Plate Wafer Check Valves are about one fourth of a Swing Check Valve.Weight is as little as about 20%of the corresponding Swing Check Valve due to the compact design.Dual Plate Wafer Check Valves have a spring design to close valves more efficiently when the backflow occurs to reduce the water hammer.These valves have the lower pressure drop than Swing Check Valves because of little friction resistance.Dual Plate Wafer Check Valves are less expensive than Swing Check Valves because of the lightness an compact design. Because Dual Plate Wafer Check Valves are flangeless, they are installed between flanges.Normal installation method for horizontal flow is with the hinge pin in vertical position.Installation is available for both horizontal and vertical piping.DESCRIPTION OF PARTS
NO | NAME | MATERIAL | Q'TY | |
10K | 150LB | |||
1 | BODY | FC200 | A216Gr.WCB | 1 |
2 | PLATE | SCS13,BC6 | A351Gr.CF8 | 2 |
3 | SPRING | STS316WPA, INCONEL-X750 | 1-4 | |
4 | HINGE PIN | STS 304 | A276-304 | 1 |
5 | STOP PIN | STS304 | A276-304 | 1 |
6 | PLUG | SM 25C | A576 1025 | 4 |
7 | BEARING | PTFE | A276-304 | 6-9 |
8 | PIN STABILIZER | RUBBER | - | 4 |
9 | EYE BOLT | SS 400 | 1 | |
10 | SEAT | NBR,EPDM | METAL |
Stainless Casting Dual Plate Check Valve