This valve is installed in pipeline as a closing device and can not be used to regulate flow and exhaust to the open.

Specification:

Type               Z41/541/942T-10    Z41W-10   Z42/542/942w-1
N. Pressure(MPa)      1.0              1.0           0.1

Testing pressure (MPa)
Shell                 1.5              1.5           0.2
Seal                  1.1              1.1           0.11

Working pressure(MPa) 1.0              1.0           0.1

Suitable medium     Vapour            oil gas       Water

Suitable temperature C small or equal to 100 100 100

Materials:

Body, disk, bonnel, hand wheel, transmission-support---cast iron
Sealing ring----cast copper, cast iron, stainless steel
Stem-----stainless steek
Packing-----rubber, asbestos

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