Welcome to our range of U-PVC wafer check valves, the ideal solution for backflow prevention in hydraulic and industrial systems. Fully manufactured in Italy, our valves combine the durability of U-PVC with advanced mechanical design, ensuring safety, reliability, and long service life.
Whether for water treatment, swimming pools, irrigation, or chemical plants, our selection of wafer check valves, also known as swing check valves or clapet valves, provides maximum configuration flexibility to meet any technical requirement.
Find out more details by consulting the product sheets of our plastic valves, register in our reserved area and access:
Find out more details by consulting the product sheets of our plastic valves, register in our reserved area and access:
To meet every installation need, our U-PVC wafer check valves are available in two construction versions:
Standard wafer check valves (without spring)
These rely on gravity and back pressure for closure. They are ideal for horizontal installations where minimal pressure loss is required and smooth flow is essential.
Spring-loaded wafer check valves
Equipped with a stainless steel spring that ensures fast and precise closing in any installation position. This version is particularly suitable for vertical installations or for preventing water hammer. These spring-loaded swing check valves provide enhanced safety in dynamic flow conditions.
Selecting the right U-PVC clapet valve also means ensuring proper chemical compatibility. We offer two elastomer options to guarantee reliable sealing under various operating conditions.
1. EPDM seals
Ideal for general applications, potable water, irrigation systems, and non-oily fluids. They offer excellent resistance to aging, weathering, and many chemical agents.
2. FPM (Viton®) seals
Essential for industrial and chemical environments. Wafer check valves equipped with FPM (Viton®) seals provide superior resistance to acids, hydrocarbons, and aggressive chemicals, maintaining elasticity even at higher temperatures.
| Feature | Standard version | Spring-loaded version |
|---|---|---|
| Body material | U-PVC (Made in Italy) | U-PVC (Made in Italy) |
| Seals (O-ring) | EPDM / FPM (Viton®) | EPDM / FPM (Viton®) |
| Installation | Mainly horizontal | Universal (horizontal/vertical) |
| Chemical resistance | High | Excellent (with stainless steel spring) |
Choosing our Made in Italy wafer check valves means relying on a product designed and manufactured without compromise. Precision moulding and high-quality raw materials ensure:
No corrosion: U-PVC is immune to rust and galvanic currents
Easy maintenance: the serviceable design allows quick inspection and cleaning of seals
Customization: choose EPDM or FPM (Viton®) depending on fluid aggressiveness
Long service life and reliable performance
Compatibility with modern piping systems
These swing check valves and clapet valves are engineered to provide dependable backflow prevention and consistent operation in demanding technical environments.
Expert tip:
If your system handles concentrated chemicals, oils, or aggressive fluids, always specify U-PVC wafer check valves with FPM (Viton®) seals to prevent premature seal degradation and ensure maximum durability.
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Comer spa è un’azienda italiana specializzata nella produzione di raccordi e valvole in PVC, C-PVC, ABS, PE e PPH.
Via Tangoni, 30 - 16030 Casarza Ligure Genova Italy
Fax: +39.0185.358696
P.IVA: P. IVA 00174820993
