UPVC PVC Rückschlagventil Innen Ø 25 32 40 50 63 75 90 110 mm Rohr Klebefittings

Match the inner diameter (ID) of the valve to the outer diameter (OD) of your pipe according to the standard metric UPVC pipe schedule. For example, a 32 mm (DN25) valve accepts pipe with a 32 mm outer diameter. If you are unsure, measure the outside of your existing pipe and cross-reference with the DN nominal bore chart. When in doubt, contact us with your pipe OD and we can confirm the correct size.

This fitting is designed primarily for horizontal installation, which allows the spring to function correctly and the disc to seat reliably under gravity. Vertical installation with upward flow is also supported. Vertical downward-flow installation is not recommended, as gravity may assist backflow against the spring. Always observe the flow-direction arrow marked on the valve body.

Rigid UPVC is rated for cold and warm water service, typically up to approximately 60 °C (140 °F) at reduced pressure. It is not suitable for steam lines or continuous hot-water circulation above this threshold. For higher-temperature applications, consider CPVC or ABS fittings. If your system operates near the upper temperature limit, contact us to confirm suitability before ordering.

Use a PVC solvent cement rated for pressure pipe applications (e.g., a medium-bodied, fast-set PVC cement conforming to ASTM D2564 or equivalent). Clean and dry both the pipe end and socket interior, apply a thin even coat of cement to both surfaces, push firmly together with a slight twist, and hold for 30 seconds. Allow the joint to cure fully — typically 24 hours at room temperature — before pressurising the system.

Yes. Installing a UPVC check valve on the discharge line of a submersible pump prevents water from draining back into the well or sump when the pump stops, protecting the pump from water-hammer and reducing restart load. Select the size that matches your discharge pipe inner diameter. For deep-well applications where column pressure is high, verify the valve's rated working pressure against your static head before installation.

Solvent-weld fittings create a permanent, leak-free bond that is structurally stronger than threaded connections in plastic pipe systems and eliminates the risk of thread-joint weeping over time. They are the preferred choice for buried pipework, concealed installations, and systems subject to vibration. Threaded valves are more suitable where future disassembly is required. If you need a removable valve, consider a union-ended or flanged check valve instead.

Each product listing covers one inner diameter size with quantity options of 1 to 5 units. To order multiple sizes, add each size variant to your cart separately. If you need larger quantities or a mixed-size assortment for a project, contact us and we can advise on bulk ordering options.