Piston Valve
FEATURES
- Design Ref : ASME B16.34
- Face To Face : ASME B 16.10
- Range : DN 15 To 200
- Material : CS, SS 316
- Temp. : 550°C
- Value ring used for sealing is made up of packing, hence the piston valve acts as a soft seated valve.
- Special feature of piston valve is that the piston always held by value ring in either open or closed position resulting in no vibration.
- It can be used as bi-directional valve. However it is preferred to install the valve such that pressure acts below the piston.
OPERATION
Opening or closing of valves is by means of cylinder piston movement. When the piston moves up the ports gets open and fluid tightness takes place at upper valve ring. When the piston moves down, the ports gets closed and fluid tightness takes place at both at upper and lower valve ring.
OVERALL DIMENSION SE & SW
Overall Dimensions Flanged End Table
* SIZES DN 65×300 CLASS AND ABOVE, DN 200×150 CLASS ARE WITH BALANCED PISTON
PART LIST AND MATERIAL OF CONSTRUCTION
CLASS 150 - DN15 To 150
CLASS 300 - DN65 To 150
