API600,BS1414 Gate Valve 1500Lbs Full Bore BB Bolt Bonnet Pressure Seal Bonnet OS&Y Outside Screw and yoke Flexible Wedge Renewalbe seat rings. Rising stem
Power Station Check Valve Pressure seal bonnet cap Swing type, Anti-rotation disc Renewable seat rings Non-penetrate disc shaft Horizontal servece Flanged or buttwelding ends