ASCO Asca explosion-proof solenoid valve supply

ASCO Asca explosion-proof solenoid valve supply

Advantages of Asco Asca Explosion proof Solenoid Valve

1. ASCO Asca explosion-proof solenoid valve has a long working life.

2. ASCO explosion-proof solenoid valve working system: divided into three types: long-term working system, repeated short-term working system, and short-term working system. Explosion proof solenoid valves are all designed for long-term operation, meaning that the coils are allowed to work continuously with electricity. For situations where the valve is open for a long time but only closed for a short time, it is advisable to use a normally open solenoid valve. When used for short-term work and in large quantities, special orders can be made to reduce power consumption.

3. ASCO Asca explosion-proof solenoid valve operating frequency: When the operating frequency requirement is high, the structure should preferably be a direct acting solenoid valve, and the power supply should preferably be AC.

The coil housing of ASCO Asca explosion-proof solenoid valve not only has the explosion-proof function of withstanding gas explosion pressure, but also has a blocking effect on the energy transfer of gas explosion, resulting in higher safety performance. It is a special electromagnetic valve series product specially designed for the transmission of flammable and explosive media or for use in explosive hazardous areas. Different explosion-proof levels of electromagnetic valves should be selected for different environments and fluids.

The Asco Asca explosion-proof solenoid valve has a sealed chamber with through holes at different positions, each hole leading to a different oil pipe. The middle of the chamber is a valve, and there are two electromagnets on both sides. The magnetic coil on which side is energized will attract the valve body to which side. By controlling the movement of the valve body, different oil discharge holes will be blocked or leaked out. The oil inlet hole is normally open, and hydraulic oil will enter different oil discharge pipes. Then, the oil pressure will push the piston of the cylinder, which in turn drives the piston rod, and the piston rod drives the mechanical device to move. In this way, the mechanical motion is controlled by controlling the current of the electromagnet.

ASCO Asca explosion-proof solenoid valve supply

Principle of Asco Asca Explosion proof Solenoid Valve

1) Direct acting solenoid valve:

Principle: When powered on, the electromagnetic coil generates electromagnetic force to lift the closing member from the valve seat, and the valve opens; When the power is cut off, the electromagnetic force disappears, and the spring presses the closing member against the valve seat, causing the valve to close.

Characteristics: It can work normally under vacuum, negative pressure, and zero pressure, but the diameter generally does not exceed 25mm.

2) Distributed direct acting solenoid valve:

Principle: It is a combination of direct action and pilot operated principle. When there is no pressure difference between the inlet and outlet, after being energized, the electromagnetic force directly lifts the pilot small valve and the main valve closing member upward in sequence, and the valve opens. When the inlet and outlet reach the starting pressure difference, after being energized, the electromagnetic force pilot small valve, the lower chamber pressure of the main valve rises, and the upper chamber pressure drops, thereby using the pressure difference to push the main valve upwards; When the power is cut off, the pilot valve uses spring force or medium pressure to push the closing member downwards, causing the valve to close.

Features: It can also operate under zero pressure difference, vacuum, and high pressure, but with high power, it must be installed horizontally.

3) Pilot operated solenoid valve:

Principle: When powered on, the electromagnetic force opens the pilot hole, causing the pressure in the upper chamber to rapidly decrease, creating a pressure difference of high and low around the closing element. The fluid pressure pushes the closing element to move upward, and the valve opens; When the power is cut off, the spring force closes the pilot hole, and the inlet pressure quickly forms a lower and higher pressure difference around the closing valve through the bypass hole. The fluid pressure pushes the closing valve to move downward and close the valve.

ASCO Asca explosion-proof solenoid valve features: high upper limit of fluid pressure range, can be installed freely (customized), but must meet fluid pressure difference conditions.