High pressure cylinder and bundle valve with pneumatic actuator for corrosive gases - D131

Pneumatic cylinder Valve with Packed Needle Stem Design for High Purity Gas Applications

Key advantages

Freedom from seizure when used with corrosive gases- gas does not come into contact with the valve operating mechanism.
Positive and effective operation-valve spindle is mechanically linked to the operating hand wheel, which only requires low closing torque.
Long life-valve, all internal parts are replaceable
Adjustable gland packing-in the unlikely event of a leakage occurring past the valve spindle, when opening the valve, rectification is readily achieved by retightening the gland packing nut.
Low internal volume-this is particularly beneficial, when using the valve for hygroscopic, corrosive or high purity gases, where inert gas purging may be necessary before opening after closing the valve.

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Specifications

Connections	According (inter-)national standards and customer’s specifications
Working pressure	200 bar
Nominal flow rate	CV = 0.25
Temperature range	-20 to +65 °c
Body materials	Stainless steels 1.4305 (AISI 303) and 1.4435 (AISI 316L), AlSiBz and brass
Seat orifice size	2.8 Mm
Marking	π 0029(according to TPED), manufacturing date, 3 stars, valve number
Leak rate	<1.10^-5 m bar L/s

Dimensional drawings

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