PRK Straight coupling female thread reduced 402 40 x G25

Application:
On polyethylene pipes PEL, PEH and PEM, PN 6.3 and PN 10, according to SS 3362.
On PVC pipes with special pressure screw and cone. See accessories.

PRK coupling with FPL compression nut for soft and hard copper pipes and soft steel pipes.

Support sleeves should always be used, except for hard copper tubes.

Max working pressure:
What applies to the pipes.
(Coupling max 1.6 MPa = 16 bar)

Max negative pressure:
99% vacuum = 750 mm Hg

Temperature:
Max working temperature: The one applicable to the pipes.

Materials:
Nipples: AMETAL® or red metal (allows earthing).
Pressure screw: Acetal
Dim 63 has pressure screw of AMETAL® with cone of Acetalplast.
AMETAL® is TA’s dezincification-hardened alloy.

Type approval:
For domestic water installations by SITAC, Svenskt Byggodkännande AB (Type approval certificate no. 252/74).