2 Pack Automatic Bleed Valve, Brass Exhaust Valve DN15 G1/2 Inch, Quick Bleed Valve with Filter for Solar Water Heaters

Material: made of brass, safe and strong, durable, wear-resistant and high temperature resistant. Design: the steam and water collection tray is equipped with a special structure to ensure that no water leakage during the drain process. Low resistance hole hole design and eliminating safety hazards. Automation: As long as there is a pressure difference between the inside and outside of the system, the outlet valve will continue to purge automatically. EASY TO USE Equipped with a filter that can filter out larger impurities and avoid blockages and damage to the valve body. 1/2" DN15 threaded interface fits most devices. Purpose: Suitable for removing excess air during operation of HVAC systems and exhaust systems.