Applicable standards: Steel check valves: API 594/API 6D Steel check valves: ISO 14313 Steel valves: ASME B16.34 Face to face: ASME B16.10 End flanges: ASME B16.5 Inspection and test: API 598/API 6D Design description: PSB, Pressure seal bonnet Flexible wedge, fully guided Choice of solid or split wedge Renewable seat rings Forged-head stem Rising stem and non-rising handwheel Flanged or butt welding ends Available with bg operator Fig. No: CP25F05A CP25F05D CP25F05B CP25B05A CP25B05D CP25B05B CP25R05A CP25R05D CP25R05B