Built in double-disc wafer swing check valve
Retainerless
metal seal or rubber seal.
DN15-DN200, class150-300

Product features
To API594
Face to face per ANSI B 16.10
Flange ends dimension ANSI B 16.5/ANSI B 16.47
Final inspection tests to API598.

Materials
WCB CF8 CF3 GR4A Hastelloy C etc.

Corrosion protection
Inside and outside epoxy coating
Applicable temperature: -196-540 different raw material for different work temperature
Applicable medium: Water, oil, gas and other causticity medium (different raw material for different medium)
about this product:
H71H/H71W/H71X-10-40C/P/R