When running or heating, water would release gas. If cannot be exhausted promptly, those gas will be led to a bad result, such as corrosion and capitation. So the system needs to install a valve to exhaust gas. On the other hand, when there is a pressure drop, a valve which can permit air to enter is necessary. Breather valve can not only vent air, but also avoid siphoning.Thus many systems install breather valves: independent heating system, central heating system, solar system, central air conditioning, and boiler.
Feature: 1. All valves have been tested prior to shipment; ensure that the valves will not exhaust water during working. 2. Automatically open to inhale air in case of negative pressure when there is a vacuum. 3. The body and elements are made by stainless steel 304/316.That can make sure the valve can work for a longer workinglife.