High-quality materialOur solar water heater pressure relief valve is made of high-quality brass, the interior is cast with high-precision parts, and the drain mechanism is stable and reliable. Automation DesignWhen the system is supplied by 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 the outside of the system, the purge valve will continue to purge. Easy to disassemble In order to ensure that water does not escape. not flow during the output process, our automatic drain valve uses a special structure that uses the design of steam and water separation pan. Easy to disassemble and repair, so the system does not have to be emptied Scope of delivery: 2 heating automatic air vent valves with DN15 brass thread - Dimensions: 68, 8 x 45mm Pressure Rating: PN1.6 Remove excess air during exhaust system and Hvac system operation. ApplicationSolar quick purge valve 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.