A21H/W弹簧微启式螺纹安全阀介绍

型弹簧微启式外螺纹安全阀Spring loaded low lift external thread safety valve

用途Use

A21H型适用于工作温度≤200°C的空气、氨、石油气等介质的设备和管路上。
A21W型适用于工作温度≤200%C含腐蚀性的气体或液体的设备和管路上。
A21F型适用于工作温度≤200C的液化气、石油气等设备和管路上，作为超压保护装置。

A21H type is suitable for the working temperature of 2009Cor less medium such as air, ammonia, liquefied petroleumgas (LPG) of equipment and piping. A21W type is suitablefor the working temperature of 2009C or less corrosivegas or liquid equipment and piping. A21F type is suitablefor the working temperature of 2009C or less liquefiedpetroleum gas, liquefied petroleum gas (LPG) and otherequipment and piping, as the overpressure protectiondevice.