The30W02 nitrogen sealing device iscomposed of the control valve,actuator, pressure spring, pilot, pulsepipe and other parts.It is mainly used for maintaining thepressure of gas (generally nitrogen)at the top of the vessel constant soas to prevent the materials in thevessel from contacting the air,volatizing and being oxidized andensure vessel safety.It is especially suitable for gas sealingprotection systems of various large-sized storage tanks. The product hassuch features as energy saving, agileaction, reliable running, convenientoperation and maintenance, etc. It iswidely used in petroleum, chemicalindustry, etc.
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