High pressure cylinder valves with pneumatic actuator for corrosive gases – D156S

High pressure Pneumatic cylinder valve - 2-piece Stem design - spring loaded gland packing - soft seat

Key advantages

2-piece sturdy stem design in order to reduce particle generation.
Non rotating lower spindle for increasing tightness during life time.
No particle shedding threading in gas wetted areas.
Self-adjusting compression of V-packings using disc springs, allowing a service temperature range from -40° to +65°C.
Locking nut having left-hand thread that secures the valve mechanism, even if excessive torques are applied.
O-rings fitted behind V-packings guarantee a secondary sealing, and they avoid the risk of humidity coming in contact with the gas wetted areas.
Soft seat induces low operating torque.
Soft seat is fixed with a special screw and its design improves the valve’s robustness against over torques.

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Specifications

Connections	Standards
Working pressure	200 bar
Nominal flow rate	CV = 1.1
Temperature range	-40 to +70 °c
Body materials	AlSI 303, AlSI 316L
Seat orifice size	6 Mm
Marking	Production date, 3 stars, valve number
Leak rate	<1.10^-5 m bar L/s

Dimensional drawings

Downloadable catalogs, brochures