Shanghai Kolink Valve Co., Ltd.
| Payment Terms | T/T, L/C |
| Supply Ability | 1000 Pieces/Month |
| Delivery Time | 2-8 Weeks |
| Packaging Details | Plywood Case |
| Sizes | 2" - 48" or DN50 - DN1200 |
| Pressure Rating | Class150 - Class1500 or PN16 - PN250 |
| Material of Valve Body | WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc. |
| Brand Name | KOLINK |
| Certification | PED 2014/68/EU,API 6D and ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1000 Pieces/Month |
| Delivery Time | 2-8 Weeks | Packaging Details | Plywood Case |
| Sizes | 2" - 48" or DN50 - DN1200 | Pressure Rating | Class150 - Class1500 or PN16 - PN250 |
| Material of Valve Body | WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, etc. | Brand Name | KOLINK |
| Certification | PED 2014/68/EU,API 6D and ISO9001 | Place of Origin | CHINA |
| High Light | double door check valve ，dual plate check valve | ||
Flanged Double-door Wafer Check Valve Stainless Steel Resilient & Metal Seated
Dual-plate check valves are bonnetless and mounted between pipe flanges (wafer style). In this case, the valve includes two spring-loaded half-moon shaped discs that rotate about their shaft. The actual designs of these valves vary between design models and manufacturers. Most have multiple flat seats. The dual-plate check valve disc has short rotational disc travel and responds quickly to flow stoppage or reversal, thus the potential for moderate water hammer does exist. It is somewhat better than the swing check valve at minimizing potential water hammer, but with a much higher pressure drop.
Depending on the design, maintenance effort ranges from relatively simple to difficult. All dual-plate check valves must be removed from the line to perform maintenance due to the bonnetless design. The dual-plate check valve also results in a higher pressure drop when compared to a tilting disc check valve of the same size.
Although most of the wafer check valves are installed between two flanges, and no need to be flanged type, some other applications may need flanged type wafer check valve for better alignment of valves. The flanged valve body could be cast or forged upon customer's requirement.
Features of Flanged Dual-plate Wafer Check Valves:
One-Piece Body Design
Short Face-to-face
Inline Double Plate
Spring-loaded Disc for Quick Closure
Flanged Wafer End
Applicable Standards of Flanged Dual-plate Wafer Check Valves:
a) Design&Manufacture: API 6D, API 594
b) Face to Face: API 6D, ASME B16.10, EN 558
c) Connection End: ASME B16.5, EN 1092, JIS B2220
d) Test and Inspection: API 6D, EN 12266, API 598
Company Details
Business Type:
Manufacturer
Total Annual:
20000000-25000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Kolink Valve, specializing in manufacture and supply of quality industrial valves, is building up its reputation for quality and economical products in the valve industry. Kolink Valve, specializing in manufacture and supply of quality industrial valves, is building up its reputation for quality and economical products in the valve industry.
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