DIN EN ISO 10434:2005-01

This Standard specifies the requirements for a heavy duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions would indicate a need for full port openings, heavy wall sections and large stem diameters. The standard sets forth the requirements for the following gate valve features: bolted bonnet; outside screw and yoke; rising stems; non-rising handwheels; single or double gate; wedge or parallel seating; metallic seating surfaces; flanged or butt-welding ends.