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DUAL-PLATE Wafer TYPE Check Valve 150#300#600#
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Product Details
| Standard or Nonstandard | Standard | Pressure | High Pressure | |
| Material | Stainless Steel | Temperature of Media | Normal Temperature | |
| Place of Origin | Zhejiang, China |
Product Description
Wafer check valves, also known as dual-plate check valves, have two spring loaded half-moon shaped discs that rotate about their shaft. The disc plates are kept shut by a torsion spring. When fluid flows in a forward direction, the pressure of the fluid causes the disc plates to swing open, allowing flow. The check valve is closed by the spring as soon as flow ceases, before any reverse flow can occur.
Material lists
| Carbon Steel | Stainless steel | Alloy steel | |
| Body | A216 WCB | A351 CF8 | A217 WC6 |
| Disk | A351 CF8 | A351 CF8 | A351 CF8 |
| Spring | A182 F304 | A182 F304 | A182 F304 |
| Spin | A182 F6a | A182 F304 | A182 F304 |
Normative reference
API 6D Pipeline Valves
API 594 Check Valves: Flanged, Lug, Wafer and Butt-Welding
ASME B16.34 Valves Flanged, Threaded and Welding Ends
ASME B16.5 Pipe Flanges and Flanged Fittings: NPS 1/2 through 24
ASME B16.47 Series A Large Diameter Steel Flanges: NPS 26 Through NPS 60 Metric/Inch Standard
ASME B16.25 Buttwelding Ends
ASME B16.10 Face to Face and End to End Dimensions of Valves
MSS SP-25 Standard Marking System for Valves, Fittings, Flanges and Unions
Size available
NPS 2 to NPS 24 (DN50 to DN600)
Pressure rating available
Class 150 to Class 900
...
Contact Us
- Zhejiang Zhengqiu Valve Co., Ltd.
- Contact nameHenry zou Chat Now
- Phone86-577-86911288
- AddressYongchang, Longwan District,wenzhou city, Wenzhou, Zhejiang
Product Categories
| All kinds of valve | Ball Valves | Check Valves | Gate Valves |
| Globe Valves | Grooved End Valve | Industrial Valves | Needle Valves |
| New Products | oilfield valves | Pipe FITTINGS | Strainers |
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