Reducing valve for gas cylinder - high pressure 0-2bar, ф8mm

Reducing valve for high pressure of the German brand SCHULZ. Made of brass. It is mounted on a gas cylinder and provides reduction of the pressure of the gas, which is supplied from the cylinder to a gas appliance by means of a hose. It is used to supply propane-butane to industrial appliances such as burners, heaters, large heaters, etc.
The reducing valve has a regulator that determines the amount of gas supplied. Turning the regulator to let more gas in should be done gradually, not suddenly.
The connection hose connection is f8 mm in size. The operating pressure of gas appliances should be 0-2bar. The working capacity of the valve with regulator is 0-8 kg/h.