Use a tapping saddle to suit poly pipe & bush down to 3/8” BSPF to suit male nipple on air vent.
In all heating systems using water, air pockets are created which must be drained in order to avoid noise and water circulation problems.
The R88/1 valve has a high capacity to vent, even though it has small overall dimensions, which enables the valve to be used in confined spaces.
PN7 pressure is forged on the cap of the valve and the maximum vent flow is reached with that pressure. Nevertheless the valve can be used with lower or higher pressure, being guaranteed up to 1.4 MPa (14 Barg).
Maximum operating temperature is 120ºC.