Vatac Marine Cast Steel Check Valves are designed and manufactured to JIS Standard,Website:://.vatacvalve.net, With standard features of Bolted/Screwed Bonnet, Intergral/Renewable Seat, Swing or lift Type, Applicating for Air, Gas, Oil and plusation water, Standard steam, non-shock water up to 120 Deg. C and so on» Bolted Bonnet Swing Check Valve 5K JIS F7372» Bolted Bonnet Swing Check Valve 10K JIS F7373» Bolted Bonnet Lift Check Valve 5K/10K JIS F7358» Bolted Bonnet Lift Angle Valve 5K/10K JIS F7359» Inspect