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- pressure vacuum relief valve 真空安全阀
- combined pressure and vacuum relief valve 联合压力真空排出阀
- Install a listed temperature-pressure relief valve in the opening on the side of the heater. Install a vacuum relief anti-siphon device in the cold water inlet line. 在热水器侧面的开口位置上安装额定温度/水压的安全阀。在冷水进水管上安装一个反虹吸的真空安全装置。
- Note : Vacuum relief valves are not designed or approved as back-siphonage backflow preventers. For protection against back-siphonage install Watts Series 288A vacuum breakers. 注意：蒸汽安全阀不适用于、也不被认可用作倒虹吸防倒流装置。如果需要对于倒虹吸现象提供保护，则需要安装美国瓦茨系列288A真空断路阀。
- Purpose: To test operation of pressure differential relief valve. 目的:检测压差安全阀的运行。
- Never plug the discharge of a pressure safety relief valve! 绝对不要堵塞压力安全阀的排泄口！
- vacuum relief valve 真空解除阀
- The set pressure of all pressure and vacuum relief devices should be verified by testing before the devices are placed in operation. 所有压力和真空泄放装置在投入运行前，应对这些装置的设定压力进行校验。
- The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies. TK-DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
- Install the high pressure relief valve in the compressor manifold fitting. 在压缩机歧管配件里安装高压释放阀。
- Install a vacuum relief anti-siphon device in the cold water inlet line. 在冷水进水管上安装一个反虹吸的真空安全法。
- Remove the elbows from the relief valve base. 从安全阀底座拆卸弯头。
- Clean or replace the relief valve seat. 清洗或更换安全阀阀座。
- Damage or fouled relief valve seat. 安全阀阀座损坏或受到污染。
- Damaged or fouled relief valve seat. 安全阀阀座受到损坏或污染。
- Relief valve must be piped to a suitable drain. 安全阀必须配置通向适当排泄口的排泄管道。
- Install relief valve cover nut and tighten. 安装安全阀阀盖螺母,并加以紧固。
- Record this as the opening differential pressure of the relief valve. 将此读数记录为安全阀开启压差。
- Have the year produces8000 abilities of the set set of the each high pressure vacuum chopper. 具有年生产各型高压真空断路器8000台套的能力。
- Install a 125 PSI pressure relief valve in the cold water supply line. 在冷水供应管道上安装一个125psi的减压安全阀。
