Maintenance of electric valve A brief discussion on seven functions and two operating modes of explosion-proof electric valve

Maintenance of electric valve A brief discussion on seven functions and two operating modes of explosion-proof electric valve

Daily electric valve maintenance

1, the electric valve should be stored in the dry ventilation room, both ends of the channel must be blocked.

2, long-term storage of electric valves should be checked according to the schedule, dirt, and coated in rust prevention oil on the processing surface.

3. After installation, inspection should be carried out on schedule. Main inspection items:

(1) Wear condition of sealing surface.

(2) Wear condition of trapezoidal thread of valve stem and valve stem nut.

(3) Whether the packing is expired and invalid, if there is damage, it should be replaced in time.

(4) After electric valve inspection and assembly, seal function test should be carried out.

The electric valve in operation, all kinds of valve parts should be complete and intact. The flange thread and the bolt on the support are indispensable. The thread should be intact and loose. If the fastening nut on the handwheel is loose, it should be tightened in time to avoid wearing the joint or losing the handwheel and nameplate. If the hand wheel is lost, do not agree to use a adjustable wrench instead, should be timely matched. Packing gland is not allowed to skew or have no pre-tightening clearance. For electric valves that are easily contaminated by rain, snow, dust, sand and other dirt, the valve stem should be installed with a protective cover. The scale on the electric valve shall be kept complete, correct and clear. The seal, cap and pneumatic accessories of the electric valve should be complete and intact. Thermal insulation jacket should have no sag, crack.

Do not knock, stand or support heavy objects on electric valves in operation; Special length metal electric valve and cast iron electric valve, but also to prohibit.

A brief discussion on the seven functional characteristics and two operating modes of explosion-proof electric valve

Explosion-proof electric valve in the current life has been in a very popular position, and so that in the use of the above let us can be very effective to understand and familiar with it, it has a lot of functions, so that we can be very effective use will not make mistakes, its use environment we need to pay attention to should not be placed in a high temperature environment, And according to the actual relevant space factors for effective use, we are very necessary to determine and understand its own characteristics, can not be placed in direct sunlight, so that the machine case damage phenomenon, or the internal line occurred above the problem resulting in the overall use of the above.

Do you know how to accurately operate the explosion-proof electric valve so that the life and function of the equipment can be put to good use? In case you don’t know, here’s a sneak peek.

1. If you are using explosion-proof electric valves, you must first confirm repeatedly that all the premises are in line with each other before you can run. Many customers are affected by careless inspection, which affects the service life and function of the equipment.

2, after the operation of explosion-proof electric valve, do not too hard to control the equipment, but slowly to control if the external force is too large, it is not able to increase the function of the equipment will make the parts of the equipment due to excessive external force and distortion, thus affecting the equipment.

Function characteristics of explosion-proof electric valve

1, improve the predecessor of no pin connection technology, so that the sealing function is more reliable, long service life, easy maintenance

2, the use of electroplating, nylon and other different coatings, corrosion resistance is improved, can meet the needs of different mining.

3, the valve appearance using spray coating, so that the product appearance anticorrosion function progress, beautiful appearance.

4, electric drive device function, its characteristics are as follows:

1) Small and light, easy to disassemble and repair, and can be installed at any Angle

2) Aluminum alloy die-cast shell can reduce electromagnetic interference

3) Integrated design of worm gear output shaft to avoid the gap of key connection and high transmission accuracy

4) The output shaft of the worm gear cast with copper alloy has high strength and good wear resistance

5) Microswitch with full entrance, more agile on and off, more safe to use

6) A variety of output signals: switch type, regulator type, intelligent type

7) With overheating protection, overload protection function, safety is guaranteed