PVC-U Wafer Swing Check Valves
A PVC-U wafer swing check valve is a wafer valve with a rigid PVC body and hinged plastic disc that prevents backflow on acid, alkali and saltwater lines where metal check valves corrode. It is clamped between flanges.
It is used on water treatment, chemical dosing, pool and seawater lines together with PVC-U pipe systems. Due to the plastic material, pressure and temperature limits are lower than metal bodies and are confirmed by model.
Main Applications
- Water treatment plants
- Chemical dosing lines
- Pool and aquarium circuits
- Seawater and brine lines
- Galvanising and plating baths
Technical Data
| Type | Swing disc, wafer |
|---|---|
| Body | PVC-U |
| Disc | Plastic (by model) |
| Seal | EPDM or FKM (by model) |
| Connection | Between flanges |
| Size | By model (please ask) |
| Pressure and temperature | By model (plastic limits) |
Material Options
| Part | PVC-U wafer swing |
|---|---|
| Body | PVC-U |
| Disc | Plastic (by model) |
| Hinge | Plastic or stainless (by model) |
| Seal | EPDM / FKM (by model) |
Which material? The pressure rating of PVC-U falls as temperature rises; on hot chemical lines check the model’s pressure-temperature curve and choose the seal material for the chemical.
Advantages
Corrosion Resistant
- Against acids, alkalis and salt
Lightweight
- Plastic body
PVC System Match
- Works with plastic lines
Short Length
- Wafer installation
Construction and Design Features
- Rigid PVC wafer body
- Hinged plastic disc
- EPDM or FKM seal
- Centring between flanges
Write the medium, temperature and DN size; we will confirm the PVC-U check valve with a suitable seal.
How to Choose?
- Check chemical compatibilityConfirm PVC-U and seal resistance to the medium.
- Set the temperatureCheck the limit on the pressure-temperature curve.
- Select the sizePick a DN matching the PVC-U pipe system.
- Choose the sealSelect EPDM or FKM by chemical.
Complementary Products
Why ORFA?
Other Flanged Check Valves
Dual Plate Check Valves
Dual plate check valves stop reverse flow with two spring-loaded plates and fit between flanges.
Details →
Disc Check Valves
Disc check valves stop reverse flow with a spring-loaded disc and have a slim body that fits between flanges.
Details →
Flanged Swing Check Valves
Flanged swing check valves stop reverse flow with a hinged disc and have flanged ends.
Details →
Flanged Ball Check Valves
Flanged ball check valves stop reverse flow with a ball inside the body and have flanged ends.
Details →
Lift Check Valves
Lift check valves work with a disc that lifts with the flow and drops back onto its seat on reverse flow.
Details →
Wafer Swing Check Valves
Wafer swing check valves fit between flanges and stop reverse flow with a hinged disc.
Details →Our PVC-U Wafer Swing Check Valves
ORFA supplies pvc-u wafer swing check valves in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.
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