High-quality materialOur solar water heater pressure relief valve is made of high-quality brass, the inside is cast with high-precision parts, and the drain mechanism is stable and reliable. Automation design: When the system is supplied with water or the system pressure is too high and complete draining is required, this automatic pressure limiting valve can work reliably. As long as there is a pressure difference between the inside and outside of the system, the purge valve will continue to purge. Easy to disassembleIn order to ensure that water does not flow when exiting the process, our automatic drain valve uses a special structure that uses the design of the steam and water separation pan. Easy to disassemble and repair, so the system does not have to be emptied Scope of supply: 2 automatic heating air vent valves with DN15 brass thread - Dimensions: 68 .8 x 45mm - Weight: 115g - Rated pressure: PN1.6 - Eliminate excess air during operation of exhaust system and Hvac system. ApplicationThe valve solar quick purge is used to exhaust excess air during operation of the exhaust system and the HLK system, and is characterized by high temperature resistance, rust protection and reliable sealing.