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Lock the valve (use the valve lock sleeve)

Lock the valve (use the valve lock sleeve)

Jun 25, 2019

Lock the valve (use the valve lock sleeve)

(1) in the repair and maintenance of pressure vessels, pipelines and valves, the previous valve must be closed and locked.

(2) in the repair and maintenance of equipment connected with compressed air, nitrogen or cylinder gas, the compressed air valve, nitrogen valve or cylinder valve must be closed, locked and pressure release on the side of the equipment, in addition to the power isolation device must be locked; These equipments include packing production line, automatic plasma cutting machine, automatic plasma arc welding machine, manual plasma cutting machine, mobile gas protection welding machine, carbon arc air gouging machine, welding line grinding machine, micro-heating regenerative dryer, car flame cutting machine, etc.

(3) for temporarily unused dangerous materials, such as liquid nitrogen or nitrogen, operators should shut off and lock the outlet valve of dangerous materials.