Self-reliance type differential pressure control principle of the pneumatic valve installation method of use < / div >

self-reliance type differential pressure control principle of the pneumatic valve:
self-reliance type differential pressure control pneumatic valve is generally installed on the user entry return pipe, pneumatic valve guide under the entrance pressure tube and the water supply pipe, P1 to water supply pressure, P2 for water pressure in the pneumatic valve, P3 for water pressure outside the pneumatic valve. Construction installation points:

1, self-reliance type differential pressure control pneumatic valve can be divided into water supply type, the return type and the general formula of three. Generally installed on the return water pipe, pneumatic valve guide of pressure pipe and the water supply pipe connected; Also can choose to send the pipe installation type, but not interchangeable. Beside the general formula of self-help type differential pressure control pneumatic valve within the rated pressure difference to the closed position.
2, self-reliance type differential pressure control pneumatic valve can be installed in horizontal, vertical installation.
3, guide the size of the pressure pipe connection head generally be 1/2 'pipe thread, when installation should be set up on the water supply pipe reducing nipple or welded pipe joint
4, adjustable self-reliance type differential pressure control pneumatic valve has a knob adjust the differential, adjusting knob can make the differential set the values increase/decrease
5, straight pipe installation position shall, in accordance with requirements of the product manual Settings.
6, the installation of self-reliance type differential pressure control pneumatic control valve before by adding filter before the pneumatic valve, in order to avoid congestion.
self-reliance type pneumatic valve differential pressure control method of use:
1, self-reliance type pneumatic valve differential pressure control medium flow direction should be consistent with the pneumatic valve body direction arrow;
2, self-reliance type differential pressure control pneumatic valve should be installed on the return pipe, pneumatic valve guide pressure tube, on the other end of the guide pipe connected to the water supply pipe, it is recommended to guide pipe water supply side install 1/2 'pneumatic ball valve, in order to start eliminating congestion function;
3, in the guide tube on the water supply pipe should be installed in front of the screen pack, avoid the bad water quality caused by the pneumatic valve loses its ability to automatically adjust;
4, water supply and return pipe before the pneumatic valve should be installed pressure gauge, facilitate adjustment control pressure difference;
5, if discover the system flow is too big or too small, the possible reason was that the piping components installed with sundry jam in the fortress, pneumatic valve 1/2 'pneumatic ball valve can be closed 3 - 5 minutes, then if it is a lighter plug, can be automatically eliminated, if can't eliminate, pneumatic valve will open check to eliminate blockage;
6, controlling differential pressure regulating methods: regulate the pressure regulating pneumatic stem counterclockwise, observe the pressure differential
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