The VD 65 shut-off valve is designed as a shut-off valve on sampling equipment for the highest operating conditions.
It can be used for superheated steam up to 630°C at pressures up to 260 bar.
The cooling fin attachment causes cooling of the valve bonnet, as a result of which the temperature at the packing is approx. 200 K below that of the valve body.
The asbestos-free stuffing box packing consists of several layers of graphite and can be retightened during operation with the so-called stuffing box gland.
The stem thread is located above the packing gland and never comes into contact with the medium in case of leakage.
- Connections R1/2" or SZ10
- kv value = 0.50 m3/h (m3/h at Δp = 1 bar)
- forged body of high temperature steel W.Nr. 1.4988
- Cooling fin attachment
- also available in non-ferrous metal version
- non-rotating valve stem (differential thread)
- Stuffing box glasses
Dr. Thiedig has many years of know-how in the development and manufacture of valves for extremely high pressures up to 1,000 bar. For extreme tightness requirements, we supply valves with bellows attachments, for example for use in nuclear power plants. The valves are also available in requirement level AS3.