QSP full pressure high speed exhaust valve

QSP type full pressure high speed double port exhaust valve is the most advanced cylinder type exhaust valve in China, completely beyond the ordinary high speed (double port) exhaust valve and compound double port exhaust valve in terms of structural performance, for the gas in the pipeline, no matter whether there are multiple water columns, gas columns, pressure and no pressure can be discharged continuously at high speed, float ball does not top on the exhaust port, there is no problem of broken card. A small amount of gas can be discharged through the microhole, the pipeline can inject gas when negative pressure, anti-gas staining and buffer water hammer career, relieve the risk of new pipeline test, the difficulty of exhaust to reduce the urban pipe network explosion accident, reduce resistance and energy saving, reduce pressure shock, improve the safety and reliability of the whole water supply series and various equipment.
Class type
Exhaust valve
Group into
Lower valve body, middle valve body, float, float rod, spool, cover plate, piston rod, diaphragm and valve cover, etc

Working principle

The valve by the lower body, the valve body, float, float rod, spool, cover plate, piston rod, diaphragm and valve cover composed of full pressure high speed exhaust valve, which is characterized by the pin and float hinged float rod can be rotated around the main shaft, and thus achieve through the float lift control valve core lifting and opening and closing, that is, when the float down (valve body filled with gas), the spool rises, open the small valve port, And close the exhaust port on the small exhaust cap, so that the gas enters the hydraulic tank through the catheter, when the float rises under the action of buoyancy, the spool drops, close the small valve port, while opening the exhaust port on the exhaust cap, so that the hydraulic tank through the catheter, straight through the atmosphere pressure relief, and when the float falls, the hydraulic cylinder is filled with gas, the valve on the large exhaust port automatically closed. When the pump stops, when the water flow in the tube is empty or when the negative pressure is generated in the tube, the air is inhaled to ensure the safety of the pipeline.

Applicable media

This series of exhaust valve adopts flange connection, suitable for the pressure of 1.0~1.6Mpa, working temperature ≤100ºC power plant circulating water pipeline, reservoir water intake project, power plant water pipeline chemical industry, water company water pipeline and other industrial and mining pipelines, suction and exhaust.

External dimensions

Installation instructions

1. The exhaust valve should be installed vertically on the horizontal pipe.
2. In order to facilitate maintenance, an isolation valve should be installed below the exhaust valve.
3. The exhaust valve shall not be installed in a strong acid or alkali environment.
4, the air exhaust valve should take anti-freezing measures, generally need to build kiln Wells to protect and anti-freezing.