■ Product Overview

1. It can eliminate gas in the pipeline, reduce resistance, and save energy.

2. When the pipeline is under negative pressure, it can quickly and automatically inhale air to prevent pipeline rupture.

3. The floating ball is made of stainless steel, with a long service life and is safe and reliable.

This exhaust valve is mainly composed of a valve body, valve, upper cover, valve stem, floating ball, exhaust nozzle, etc. When it is necessary to discharge gas from the pipeline, the valve stem should be rotated counterclockwise to make it valve

The rod, together with the valve, rises to allow the air in the pipeline to enter the body cavity under the pressure of water and be discharged from the exhaust nozzle. As a result, the water in the pipeline fills the body cavity, causing the floating ball to float in the water

Under the action of force, the upward movement blocks the exhaust nozzle, achieving self sealing. The pipeline is running normally, and the air in the water is continuously discharged into the upper part of the exhaust valve's body cavity under pressure,

Force the float to descend and leave its original sealed position, at which point air is expelled from the exhaust nozzle. As a result, the float returns to its original position and self seals. Therefore, the exhaust valve operates normally

The valve is always open, and the float continuously repeats the above actions, while the air is constantly expelled. When maintenance or cleaning of the body cavity is required, the valve should be closed. This exhaust valve is a clockwise rotating valve

When the pole is closed.

■ Structural images

■ Precautions

(1) Note: For pipes with a diameter greater than 350mm, please choose a single port exhaust valve (QB1-10).

(2) Install a dual port exhaust valve, and be sure to install a protective valve and ball valve (Q41F-16) underneath to prevent water outage during maintenance.

(3) If the purchaser requests any changes in the size of the exhaust valve flange, please indicate the flange connection size in the contract.

■ Purpose and main performance specifications

This valve is suitable for water with a temperature not exceeding 100 ℃, and is used to completely exhaust the air inside the hot water pipeline.