Because ofsome uncertainty ofelectrom agnetic lightvalves, in order to raise the frequency ofthe valve in certain basicstructureby adjusting the param eters ofdrive cur- rent, w e observed the status ofthe valve in variouscontrollable param eters through ex- periments.

Analysis of Performance Parameters of Electronic Jacqard's Electromagnetic Valve;

Maintenance of electromagnetic valve in combustion control system of heat medium heater;

Development of PN40 DN32 pilot operated high pressure air electromagnetic valve;

The operating principle and steering control tube of high-temperature air generator are introduced, the reasons for high resistance of the steering control tube being composed of 4 magnetic valves are analyzed, and the improvement on substitution of 1 four-way valve for 4 magnetic valves is put forward.

The system of magnetic valve controller based on GSM model has some merits such as flexibly and conveniently,low investment and low running expenses,it provides a kind of pro-environment and power frugal feasible program for magnetic valve controller to have core competitiveness.

Process of black phosphating of solenoid valve;

Design of solenoid valve performance tester;

Mechanism analysis of double-peak release current curve of solenoid valve;