Ordinary Temperature
Ordinary Pressure
Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
Soft Sealing
Unidirection
Industrial Usage, Water Industrial Usage, Household Usage
ISO, Ce, API etc.
Class 150-2500lb
API 6D, BS1868 or ASME B16.34
ASME B 16.34
Wafer, Flanged, Lug
ASME B16.10
Carbon Steel, Ss, Duplex, Alloy 20 etc.
API598
AFC TECH OR OEM
Plywood Case