AVK SERIES 851 VNR VENTED NON-SLAM AIR RELEASE VALVES

Variant: 851 VNR - DN50-150, double Orifice with vented non-return. Non-slam attachment, Ductile Iron body, ABS plastic internals, 316 Stainless trim and flange drilling to AS 4807 B5. 851/10 for PN25 and 851/20 for PN16.