Here are drawings of valves in .dwg and 3D models in .stp format

Piston valve KVMN 1/2" - 2". DN 1/2" - DN 2". Valve ring KX-GT. Piston made of special niro-steel.

Piston valve KVSN 1/2 - 2" (socket weld). DN 1/2" - DN 2". Valve ring KX-GT. Piston made of special niro-steel.

Piston valve KVN DN 10 - DN 50. Valve ring KX-GT.

Piston valve KVN 65 - 200. DN 65 - DN 200. Valve ring KX-GT. Piston made of special niro-steel. Pressure balanced.

Piston valve KVSN 15 - 50 (butt weld). DN 15 - DN 50. Valve ring KX-GT. Piston made of special niro-steel.