Description
A new efficient design combines the relief valve with the gas sampling nozzle in a single mechanism.
Closing the gas sampling nozzle will first engage the relief valve and vent the remaining gas from within before completely closing the device.
PLEASE NOTE: The connection hose is not included ( #8009 ).
User manual:
Quick Reference
Connection: W21.8-14
Properties: Constant flow 0.2 l/min
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