A DIN valve is

c)    A valve allowing the first stage to be screwed into the valve


The difference between “J” and “K” valve is

a)    A “J” valve is a simple on / off valve, while a “K” valve has a reserve

b)   A “J” valve is in the regulator and a “K” valve is in the tank

c)    “J” valves do not use burst disks

d)   A “J” valve is a reserve system, “K” valve is a simple on / off calve

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