General properties of UPVC

Values at 20 °C unless stated otherwise.
Property	Unit	Value	Notes
Specific gravity	–	1.42–1.43	Usually 1.43
Shore hardness	–	70–90	Comparable to aluminium; varies with temperature.
Tensile strength	kg/cm²	500
Bending strength	kg/cm²	950	Varies with temperature.
Modulus of elasticity	kg/cm²	3.2 × 10⁴
Izod impact strength	J	4.7–5.4
Water absorption	mg/cm²	1.05
Elongation at break	%	> 80
Vicat softening point (5 kg)	°C	80
Manufacturing temperature	°C	110–140
Coefficient of linear expansion	mm/m·°C	0.08
Dielectric strength	kV/mm	> 40	Electrical equipment must not be earthed through UPVC pipes.

Not conductive. UPVC is not electrically conductive and is not subject to galvanic or electrical attack.

Pressure and temperature

Working pressure against temperature.

Up to +25 °C our valves and fittings work at 16 bar. Above that, the maximum working pressure falls linearly to 4 bar at +60 °C (DIN 3441 part 1).

Operating temperature 40 °C

For chemical media, check compatibility in the chemical resistance chart and ask our technical team.

Technical centre

Solvent bondingPrinciples, seven steps, curing times and safety, with photos from real installations.
Information about UPVCWhy UPVC, technical characteristics and how our pressure fittings are engineered.
Pipe and fitting size standardsOutside diameter and DN, fitting tolerances and thread dimensions.
Storage and transportLoading, unloading, stacking heights and long-term storage of pipes.
Installation guidesSolvent-welded, flanged and threaded connections, and thermal expansion.
Frequently asked questionsPressure classes, drinking water, chemicals, seals and curing times.

Our technical team helps with product selection, installation and chemical compatibility.