1.When the safety valve is arranged on the outlet pipe of the shut-off valve, should use a single gate valve, and lead Fengkai, valve should be installed horizontally, in order to avoid corrosion or loosening of the stem and the valve pin plate connection, the valve plate down. When the safety valve with bypass valve, the valve should be sealed off.
2.The safety valve should be set up and maintenance platform. The safety valve should be considered when the safety valve is installed, the safety valve should be taken into consideration, and the boom should be set up if necessary.
3.The safety valve inlet pipe should be long radius elbow.
4.The design of the safety valve outlet pipe should consider the back pressure is not more than a certain value of the safety valve pressure. For ordinary spring type safety valve, the back pressure is not more than 10% of the value of the safety valve.
5.When the Explorer or go to the torch into the vent duct medium with the condensate liquid or condensable gas, the safety valve should be higher than the export duct; otherwise, measures should be taken to drain.
6.The safety valve outlet pipe and discharged into the closed system should arrange the medium flow 45 degrees in the discharge duct at the top of the miter, lest the condensate mains pour into the branch, and can reduce the pressure of safety valve,
7.The safety valve should be installed upright and close to the protected equipment or pipeline. If not close to the arrangement, from the protected equipment or pipeline to the safety valve inlet total pressure drop, should not exceed 3% of the value of the relief valve.
