Single Plate Wafer Check Valve Description
Single plate wafer check valve is a valve that achieves one-way shutoff by rotating or lifting a single valve disc. Its core structure is a wafer-type installation (no flange connection), which relies on the medium's own pressure to drive the valve disc to open and close to prevent the medium from flowing back. The main components include:
Valve body: usually made of stainless steel (304/316) or UPVC, which is corrosion-resistant and suitable for low-pressure to medium-pressure conditions.
Valve disc: a single-piece disc design, which closes quickly through spring preload or gravity assistance to reduce water hammer impact.
Seal: rubber (NBR/EPDM) or metal hard seal (bronze/Stellite alloy) is used to ensure that the leakage rate is ≤0.01%.
Single Plate Wafer Check Valve Specification
|
item |
value |
|
Warranty |
1 year |
|
Type |
Metal Check Valves, Single Disc Swing Check Valve |
|
Customized support |
OEM, ODM |
|
Place of Origin |
China |
|
Brand Name |
GNEE |
|
Model Number |
H74W-16P |
|
Application |
General |
|
Temperature of Media |
Normal Temperature |
|
Power |
Mechanical |
|
Media |
water |
|
Port Size |
DN40-DN600 |
|
Structure |
Check |
|
Body material |
Stainless Steel 304/316L |
|
Pressure |
1.0~1.6MPa |
|
Working Temperature |
-20℃~425℃ |
|
Working medium |
Air Water Oil Gas Acid |
|
Connection |
Wafer Connection |
GNEE Single Plate Wafer Check Valve
Advantages
Compact and lightweight: The thickness of the wafer-type design is only 1/3~1/2 of the traditional flange check valve, saving installation space. Fast closing: The spring-assisted valve disc closing time is ≤0.2 seconds, effectively preventing medium backflow and water hammer effect. Low flow resistance: The streamlined valve body design pressure loss is ≤0.03MPa, suitable for low flow rate scenarios. Low cost maintenance: No complex drive mechanism, easy disassembly and assembly, low cost of replacing seals.
Applications
Building water supply and drainage system: Used for water pump outlet to prevent water backflow and impact on the impeller when the pump is stopped. Heating, ventilation and air conditioning (HVAC): Suitable for chilled water circulation pipelines, withstanding -10℃~60℃ working conditions. Chemical low-pressure pipelines: Transport clean water and weakly corrosive media (such as acid and alkali solution concentration ≤10%).
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