Pressure Reducer RH200 - Connection and Operation

This manual describes the correct connection and operation of a pressure reducer (gas pressure regulator) on a shielding gas cylinder. It includes an overview of the components, the step-by-step commissioning with gas hose connection and gas flow adjustment, as well as the safe decommissioning.

This RED by Lorch pressure reducer (material number 326.0636.0) is part of the delivery scope of the RED MIG 210 SYN. It is designed for inlet pressures (cylinder pressure) up to a maximum of 200 bar and is suitable for operation with argon, CO2, and Ar/CO2 mixed gas.

Construction of RED Pressure Reducer RH200 

Connecting the Pressure Reducer to a Gas Cylinder 

Warning: Incorrect connection sequence can permanently damage the pressure reducer.

1. Connect the pressure reducer to the gas cylinder.
2. Connect the gas hose on one side to the pressure reducer and on the other side to the power source.

3. Secure the gas hose at both ends with a hose clamp each to prevent gas leakage or air ingress.

   

   

4. Slowly open the gas valve of the gas cylinder. 
   -> The content pressure gauge shows the current pressure in the gas cylinder. 
   Warning: The maximum gas cylinder pressure is 200 bar.
    

   

5. Press the "GAS CHECK" button on the control panel of the power source to open the solenoid valve of the power source and thus start the gas test.
6. Insert the adjustment screw into the pressure reducer.

7. Turn the adjustment screw of the pressure reducer to set the gas flow rate.

Dismantling the Pressure Reducer from a Gas Cylinder 

Warning: Ensure that the gas hose is pressure-free before removing it.

1. Close the gas valve of the gas cylinder.
2. Press the "GAS CHECK" button on the control panel of the power source to release residual gas in the gas hose.
3. Wait until the display on the flow meter shows 0.
4. Loosen / relax the adjustment screw.
5. Carefully remove the pressure reducer