Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
Bidirectional
Industrial Usage, Water Industrial Usage, Household Usage
API 602, ASME B16.34
ASME B16.34
ASME B16.10
ASME B16.11 B16.25 B16.5
Dnv CE 0575
ISO 9001: 2008
F304&F316 Cl150 A105&A216 Wcb Flanged Swing Check
Sea Worthy
API, ANSI, ASME, DIN, JIS, GB etc.