Technical features:

1. The residual pressure valve is suitable for the automatic control of purifying the positive pressure of air-conditioned room without energy consumption, so that the air-conditioned room can maintain a certain positive pressure.

2. Directly installed on the wall

3. The adjusting mechanism is a heavy hammer type, and the opening pressure of the valve can be adjusted within the range of 5-50PA.

4. When the valve is closed, the air leakage meets the requirements of ordinary valves (JG/T436-2014 Building Ventilation air volume control valve).

Product features:

1. The valve body of the residual valve is 1.5MM galvanized steel plate, the inlet is orifice tuyere, and the outlet is platen tuyere with heavy hammer.

2. The blade shaft is galvanized round steel or stainless steel round steel.

When the width w of the valve exceeds 600MM, it will be strengthened by adding a middle partition plate and separating the blades.