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Exhaust valve 8148574 1547490 20441945

When gas overflows in the system, it will climb up along the pipeline and eventually accumulate at the highest point of the system. The exhaust valve is usually installed at the highest point of the system. When gas enters the valve chamber and gathers at the upper part of the exhaust valve, as the amount of gas in the valve increases, the pressure rises. When the gas pressure is greater than the system pressure, the gas will cause the water level in the chamber to drop, and the float will also drop along with the water level, opening the exhaust port. After the gas is exhausted, the water level rises, and the float also rises, closing the exhaust port. In the same way, when negative pressure is generated in the system, the water level in the valve chamber drops, and the exhaust port opens. Since the external atmospheric pressure is greater than the system pressure at this time, the atmosphere will enter the system through the exhaust port to prevent the harm of negative pressure. For example, when the valve cap on the valve body of the exhaust valve is tightened, the exhaust valve stops exhausting. Usually, the valve cap should be in an open state.

The exhaust valve is used for purging air from pipelines in independent heating systems, centralized heating systems, heating boilers, central air conditioning, floor heating, and solar heating systems. Since water usually contains a certain amount of air, and the solubility of air decreases with the increase in temperature, gas gradually separates from the water during the circulation process and gradually gathers together to form large bubbles or even gas columns. Because there is water replenishment, gas is often produced frequently.

1. The float chamber of the OR exhaust valve is made of low-density PPR and composite materials. This material will not deform even when exposed to high-temperature water for a long time. It will not cause any movement difficulties for the float chamber. Difficult.

2. The float lever of the OR exhaust valve is made of hard plastic. The connections between the lever, the float, and the base are all made with movable joints, so it will not rust during long-term operation, preventing the system from working and causing water leakage.

The movement expands and contracts accordingly to ensure the sealing property without exhaust. Installation of the exhaust valve:

3. The sealing end face part of the lever of the OR exhaust valve is supported by a spring, which can move with the lever to avoid affecting the exhaust;

4. The exhaust valve must be installed vertically, that is, the float inside the valve must be in a vertical state;

5. When installing the exhaust valve, it is best to install it together with the isolation valve. This way, when the exhaust valve needs to be removed for maintenance, the system can remain sealed and the water will not flow out;

6. The exhaust valve is generally installed at the highest point of the system, which is beneficial for improving the exhaust efficiency.