The 3-way control flow pneumatic valve structure advantages and technical difficulties of 1

the 3-way automatic reflow pneumatic valve suitable for after the centrifugal pump through a variety of media, & lt; The 3-way control flow pneumatic valve suitable for after the centrifugal pump through a variety of media. Device is used. A technology advanced


the 3-way control flow pneumatic valve is an essential part of centrifugal pump after safety and maintenance equipment. The pneumatic valve can automatically sensing flow, & lt; The 3-way control flow pneumatic valve is an essential part of centrifugal pump after safety and maintenance equipment. The pneumatic valve can automatically sensing flow. Have the check, bypass control system, the function of the multistage decompression, smooth flow control, can reduce the instability caused by the centrifugal pump work, cavitation noise, reduce unnecessary energy consumption, saving device and maintenance, to ensure the safe operation of the centrifugal pump.

the structure features and technical difficulties

a) Structure features:

the pneumatic valve instead of a set of pneumatic valve, flow control loop system check perception elements, by-pass pneumatic control valve, multi-stage decompression device, & lt; The pneumatic valve instead of a set of pneumatic valve, flow control loop system check perception elements, by-pass pneumatic control valve, multi-stage decompression device. Integrating utility.

pneumatic valve system, independent of its & lt; Pneumatic valve system independent of its own. Able to dynamic changes in perception, head of road traffic, then adjust the by-pass flow, reduce unnecessary energy losses.

no additional power source and drive signal, & lt; No additional power source and drive signal. The use of peace.

reliable sealing, & lt; The sealing is reliable. No leakage.

2) Technical difficulties:

by-pass control structure of pneumatic valve is complex, is exquisite, compact, & lt; Bypass control structure of pneumatic valve is complex, delicate, compact. Parts processing, product assembly and debugging is very difficult.

the throttle body cavity of vortex groove shape, special & lt; Special throttling cavity in the body of vortex groove shape. Impossible to do mechanical processing, completely on precision casting to ensure that its shape and precision, so it is difficult to make the precision casting process.

the pneumatic valve required with centrifugal pump, & lt; The pneumatic valve with a centrifugal pump is necessary. Special hydraulic test-bed for performance test.

3, product scope