PVC Klebe Fittings Verschraubung Verbinder Muffe PN 10 Bar Innen-Ø 20mm-110mm

Match the coupler's inner diameter to the outer diameter of your pipe minus the wall thickness on each side — in practice, the coupler ID should equal the pipe's nominal bore. For standard metric uPVC pressure pipe, the nominal bore and the coupler ID are the same value (e.g., a DN25 pipe uses a 25 mm coupler). If you are unsure, measure the pipe's outer diameter with calipers and cross-reference the wall schedule (SDR or PN rating) to find the bore.

PN10 stands for Pressure Nominale 10 bar, meaning the fitting is rated for a maximum working pressure of 10 bar (approximately 145 psi) at 20 °C. This covers the vast majority of domestic cold-water supply, garden irrigation, and light industrial process lines. Note that the pressure rating decreases as temperature rises — at 40 °C the de-rating factor is typically around 0.74, so consult the pipe manufacturer's data sheet for elevated-temperature applications.

Rigid uPVC does not rust or corrode in contact with water, soil, or most fertiliser solutions. However, prolonged direct UV exposure can cause surface chalking and gradual embrittlement over several years. For above-ground outdoor installations, it is advisable to paint the fittings with a water-based exterior paint or wrap them with UV-protective tape to extend service life.

No. These couplers are designed specifically for metric uPVC pressure pipe conforming to DIN 8061 / ISO 1452. They are not compatible with CPVC (which uses a different solvent cement chemistry), ABS pipe, or push-fit / rubber-ring jointed systems. Always verify the pipe material and jointing method before ordering.

Use a uPVC-rated solvent cement (also called PVC glue or solvent weld adhesive) that meets EN 14814 or equivalent. Apply a thin, even coat to both the pipe end and the coupler socket, push the pipe firmly to the stop rib with a slight twisting motion, and hold for 30 seconds. Initial handling strength is typically reached within 5–15 minutes; full pressure testing should be delayed for at least 24 hours at 20 °C (longer in cold conditions). Solvent cement is sold separately.

All three colours share the same PN10 pressure rating and uPVC material — the difference is purely visual. Industry convention often uses Blue for potable (drinking) water lines, Grey for drainage or general-purpose pipework, and White for above-ground or aesthetic installations. Choose the colour that matches your existing pipe or your site's colour-coding scheme.

Yes — single-piece quantities are available for most sizes. Simply select the inner diameter you need and choose Qty 1 from the quantity option. Larger packs (2, 3, 4, 5, 8, or 10 pieces) are also available at a lower per-unit cost, which is useful for larger installations or to keep spares on hand.