صمام الغاز Resideo VDE20B4.0OF 2WVS EXT DN20 PN16 KVS4.0 OF

Resideo gas valve model VDE20B4.0OF, designated 2WVS EXT. It is a two-way valve with DN20 nominal diameter, PN16 pressure rating, and flow coefficient KVS 4.0. The OF suffix indicates specific configuration options.