working medium:corrosive acid,alkali,liquid,air medium temperature:-10 ~ 80 ºC working pressure:0 ~ 8 bar (details see specification table) working type:diaphragm direct acting valvebody material:PTFE sealing material:VITON interface thread:Gthread(by default) working voltage: slowly heating up low power energy saving ES coil ZCF-2~8:AC220~240V,AC110V 50/60Hz 6VA , DC24 V5W. ZCF-10~25:AC220~240V ,AC110V 50/60Hz 9VA ,DC24V 8W.other voltage can be customized.