Breathing valve and flame arrester are indispensable safety facilities for storage tanks. The utility model not only can maintain the air pressure balance of the storage tank, ensures that the tank is damaged in the overpressure or the vacuum, but also can reduce the volatilization and the loss of the medium in the tank.
Breathing valve is to maintain the tank pressure balance, reduce the volatile media security and energy saving products, often with the use of firearms.
壳体材质:碳钢、铝合金、不锈钢(SUS304、SUS304L、SUS316、SUS316L)、衬氟、塑料。
内部芯件:阀盘、阀座、阀杆、阀套。
内部芯件材质:不锈钢或聚四氟乙烯。
密封圈材质:聚四氟乙烯。
环境温度:-40~+60OC。
单吸阀具有:结构紧凑、通气量大、泄漏量小、耐腐蚀、密封性能好等特点。
阀盘采用聚四氟乙烯材料,具有耐低温,防冻等优点。阻火盘位于单吸阀吸入口处,,杜绝火源进入单吸阀壳体内。具有体积小、重量轻、检修、清洗、更换方便等优点。阀内设静电输出装置,使得该阀时刻与罐体保持等电位。
操作压力:
A型:-295Pa(-30mmH20) +355Pa(+36mmH20)
B型:-295Pa(-30mmH20) +980Pa(+100mm H20)
C型:-295Pa(-30mmH20) +1750Pa(+180mm H20)
D型:-295Pa(-30mmH20) +9800Pa(+1000mm H20)(特殊压力,用户指定)
防爆级别:BS 5501:IIA、IIB、IIC。
法兰标准:GB、HG、SH、HGJ、JB、ANSL、JIS等标准。(用户指定,请注明压力等级)
制造、检测标准:按(石油储罐呼吸阀)SY7511-87、(石油储罐阻火器阻火性能和试验方法)GB5908-86等标准进行制造和验收;或用户指定标准。