Vent valve BDV BDVL
The BDV, AFZ and HVV vent valves are designed to drain (blowdown) or vent (depressurize) pipework, steam traps, valves and others.
BDV – Blowdown valves – Manual discharge of strainer screen contents and generally to be used as a drain and/or depressurization valve.
BDVL – Same as above, but also allows the discharge to be connected to a safe location.
HVV - Hard vent valves – Ventings of float traps and generally to be used as a vent or depressurization valve.
AFZ – Anti-freeze device – Automatic discharge of condensate from steam traps, valves, pipelines and others, to prevent the condensate from freezing.
BDV, BDVL, AFZ and HVV.
3/8” and M22.
NPT -M
ISO 228
Metric fine pitch