brief introduction

Ball valve is a ball with a round hole as the opening and closing parts, the ball rotates with the valve stem. To realize the opening and closing action. When the handle is pulled anticlockwise and the handle is parallel to the pipeline, it is opened. Pull the handle clockwise and the handle perpendicular to the pipeline is closed. The top of the square head exposed by the stem is engraved with a groove, which indicates the open or closed position. When the wrench is turned anticlockwise to make the groove parallel to the pipeline, the wrench is turned clockwise to rotate 90 ° to make the groove perpendicular to the pipeline to be closed. When the wrench is movably connected with the valve rod, press it on when opening and closing, and take it down after use.

Main parameters

Nominal pressure: PN1.6MPa

Nominal diameter: DN20 ~ DN200

Applicable medium: water, oil, steam and non corrosive medium

Applicable temperature: ≤ 150 ° C

Main component materials: gray cast iron, polytetrafluoroethylene

Executive standard: GB / t15185-1994

Test standard: GB / t13927-2008

Main dimensions and connection dimensions