Explosion-proof class of solenoid valves

The characteristics of explosion-proof solenoid valve

(1) The external leakage is blocked, the internal leakage is easy to control, and the use is safe.

(2) The system is simple, then the computer, low price modest.

(3) action express, small power, lightweight appearance.

(4) conditioning accuracy is limited, the applicable medium is limited.

(5) Variety of types, wide range of uses.

Advantages of explosion-proof solenoid valve

1, explosion-proof solenoid valve long service life.

2, explosion-proof solenoid valve operation system: divided into long time operation system, repeat short-time operation system and short-time operation system three. Explosion-proof solenoid valves are long - time operation system, that is, the coil allows long - time power operation. For a long time valve registration only short time closed condition, it is appropriate to choose normally open solenoid valve. It can be used for special order to reduce power consumption when the operation is short time and the batch is large.

3, explosion-proof solenoid valve operating frequency: when the frequency of action is high, the structure should be preferred direct acting solenoid valve, the power to listen to the preferred AC.

Explosion-proof solenoid valves - Class ia

Electrical equipment with explosive gas mixtures should not be ignited during normal operation, one fault or two faults.

In normal operation, the safety factor is 2.0;

When there is a fault, the safety factor is 1.5;

When there are two faults, the safety factor is 1.0.

Note: Flame-proof housing, gas-tight housing or double safety factor should be added to contacts with sparks.

Explosion-proof solenoid valves - Class ib

Electrical equipment that cannot ignite explosive gas mixtures during normal operation and a fault.

In normal operation, the safety factor is 2.0;

When there is a fault, the safety factor is 1.5.

In normal operation, the contact with spark must be maintained by flameproof shell or airtight shell, and there is a way of self-appearance of faults. The safety factor is 1.0 when a fault occurs.