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

Measure the outer diameter (OD) of your existing pipe, then match it to the corresponding coupler size. For metric uPVC pressure pipe to DIN 8061, the OD is standardised: a 20 mm ID coupler fits pipe with a 25 mm OD, a 25 mm ID coupler fits 32 mm OD pipe, and so on. If you are unsure, contact us with your pipe's OD measurement and we can confirm the correct size.

These fittings are dimensioned to metric DIN / ISO standards. Imperial pipe (common in older UK or US installations) uses different OD dimensions, so a direct fit is not guaranteed. Always verify the outer diameter of your pipe against the coupler's socket bore before ordering. If you need imperial-to-metric adapters, contact us.

Use a uPVC-rated solvent cement (also called PVC glue or solvent weld adhesive) that complies with DIN 16289 or an equivalent standard. Clean and lightly abrade both the pipe end and the socket interior, apply cement evenly, push the pipe fully home with a quarter-turn, and hold for 30 seconds. Allow the joint to cure for at least 15 minutes before handling and 24 hours before pressurising.

No. Rigid uPVC is rated for cold-water and ambient-temperature service — typically up to around 60 °C, but with a significant pressure de-rating above 25 °C. For hot water, underfloor heating, or steam applications, CPVC, PP-R, or copper fittings are the appropriate choice. These couplers are designed for cold-water supply, irrigation, and drainage.

PN10 means the fitting is rated for 10 bar (approximately 145 psi) working pressure at 20 °C. Standard residential mains water pressure is typically 2–6 bar, so these couplers provide a comfortable safety margin for most domestic and light-commercial cold-water applications. Pressure rating decreases as temperature rises, so do not use at elevated temperatures without consulting the manufacturer's de-rating tables.

No — a correctly made solvent-weld joint is permanent. The cement chemically fuses the pipe and fitting into a single piece. If you need to correct a mistake, cut out the joint with a pipe cutter or hacksaw and install a new coupler. This is why dry-fitting and measuring twice before applying cement is strongly recommended.

Yes. Rigid uPVC has good resistance to soil chemicals, moisture, and biological attack, making it a standard choice for buried cold-water supply and drainage runs. Ensure the trench is free of sharp stones that could stress the pipe wall, and follow local building codes for minimum burial depth and bedding material.