Mr. Alex Wang
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Mr. Alex Wang
Leave a messageUnit Price: USD 50 - 800 / Piece/Pieces
Min.Order
Unit Price
1 Piece/Pieces
USD 50 / Piece/Pieces
1 Piece/Pieces
USD 800 / Piece/Pieces
Brand: KOLINK
Packaging: Plywood case
Supply Ability: 1000 PCS
Min. Order: 1 Piece/Pieces
Certificate: PED 97/23/EC, API 6D & ISO9001
Brand: KOLINK
Packaging: Plywood case
Supply Ability: 200 PCS
Min. Order: 5
Certificate: PED 97/23/EC, API 6D & ISO9001
Brand: KOLINK
Packaging: Plywood case
Supply Ability: 200 PCS
Min. Order: 5
Certificate: PED 97/23/EC, API 6D & ISO9001
Unit Price: FOB USD 25-800.00/pc
Brand: KOLINK
Packaging: Plywood case
Min. Order: 5 PCS
Certificate: PED 97/23/EC, API 6D & ISO9001
Model No.: 3.04
Unit Price: FOB USD 30-800.00/pc
Brand: KOLINK
Packaging: Plywood case
Supply Ability: 200 PCS
Min. Order: 2 PCS
Certificate: PED 97/23/EC, API 6D & ISO9001
Wafer type check valves have Short face-to-face dimensions and low weight, and provide an economical, space-saving solution when compared to traditional swing check valves.
Dual-plate Wafer Check Valve
Dual-plate check valves are 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.
Single-plate wafer check valve
Single-plate wafer check valves(lift type) prevent reverse flow with disc movement that is parallel with the flow. With this design, the disc is always in the flow path. Discs are spring-loaded to assist in seating.
And another thin type single-plate wafer check valves are swing type, that performs the same with swing check valve with much less cost. The disadvantage of this single-plate wafer check valves is, the inside diameters of the valves can only meet 60-80% of Norminal Pipe Size(NPS), which limits the flow coefficient.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.