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ASCO Electromagnetic Valve G551A018MS Product Technical Data
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ASCO Solenoid Valve G551A018MS Product Technical Data $r $nASCO Solenoid Valve G551A018MS This model is generally used in steel mills, and our company has stock available all year round, guaranteeing *, and we will compensate ten for any fake products.
Product Details
ASCO Electromagnetic Valve G551A018MS Product Technical Data
The ASCO solenoid valve G551A018MS is generally used in steel mills. Our company has stock available all year round and guarantees *, with a 10% compensation for fake products.
ASCO solenoid valves are mainly classified as follows:
1ASCO solenoid valveIn principle, it can be divided into three categories:
ASCO 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.
Step by step ASCO 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.
ASCO pilot operated solenoid valve
Principle of ASCO solenoid valve: When powered on, the electromagnetic force opens the pilot hole, causing the pressure in the upper chamber to rapidly decrease, creating a high and low pressure difference around the closing member. The fluid pressure pushes the closing member 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.
Characteristics of ASCO solenoid valve: The upper limit of fluid pressure range is relatively high, and it can be installed arbitrarily (customized), but it must meet the fluid pressure difference conditions.
2. ASCO solenoid valves are divided into six sub categories based on differences in valve structure, materials, and principles: direct acting diaphragm structure, step-by-step direct acting diaphragm structure, pilot diaphragm structure, direct acting piston structure, step-by-step direct acting piston structure, and pilot piston structure.
3. ASCO solenoid valves are classified according to their functions: water solenoid valves, steam solenoid valves, refrigeration solenoid valves, low-temperature solenoid valves, gas solenoid valves, fire solenoid valves, ammonia solenoid valves, gas solenoid valves, liquid solenoid valves, miniature solenoid valves, pulse solenoid valves, hydraulic solenoid valves, normally open solenoid valves, oil solenoid valves, DC solenoid valves, high-voltage solenoid valves, explosion-proof solenoid valves, etc.
Working principle of ASCO solenoid valve:
The ASCO solenoid valve has a sealed chamber with through holes at different positions, each connected to a different oil pipe. The middle of the chamber is a piston, and there are two electromagnets on both sides. The valve body will be attracted to the side where the magnet coil is energized. By controlling the movement of the valve body, different oil discharge holes can be opened or closed. 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, which drives the mechanical device. In this way, the mechanical motion is controlled by controlling the current on and off of the electromagnet.
ASCO solenoid valve selection precautions:
ASCO solenoid valve selection criteria
The selection of ASCO solenoid valves should first follow the four principles of safety, reliability, applicability, and economy. Secondly, the selection should be based on six aspects of on-site conditions (i.e. pipeline parameters, fluid parameters, pressure parameters, electrical parameters, action mode, and special requirements).
ASCO solenoid valve selection criteria:
1. ASCO solenoid valve selects solenoid valve based on pipeline parameters: diameter specification (i.e. DN), interface method
1) ASCO solenoid valve determines the diameter (DN) size according to the on-site pipeline inner diameter size or flow requirements;
2) ASCO solenoid valve interface method, generally>DN50, flange interface should be selected, and ≤ DN50 can be freely selected according to user needs.
2. ASCO solenoid valve selects solenoid valve based on fluid parameters: material, temperature group
1) Corrosive fluids: corrosion-resistant solenoid valves and all stainless steel should be selected; Edible ultra clean fluid: It is recommended to use food grade stainless steel solenoid valves;
2) High temperature fluid: It is necessary to choose electromagnetic valves made of high-temperature resistant electrical materials and sealing materials, and to choose piston type structures;
3) ASCO solenoid valve fluid state: up to gaseous, liquid or mixed state, especially when the diameter is greater than DN25, it must be distinguished;
4) ASCO solenoid valve fluid viscosity: Usually below 50cSt, it can be freely selected. If it exceeds this value, a high viscosity solenoid valve should be selected.
3. ASCO solenoid valve selects solenoid valve based on pressure parameters: principle and structural variety
1) ASCO solenoid valve nominal pressure: This parameter has the same meaning as other general valves and is determined based on the nominal pressure of the pipeline;
2) Work pressure: If the work pressure is low, the principle of direct action or step-by-step direct action must be selected; very lowWhen the working pressure difference is above 0.04Mpa, direct acting, step-by-step direct acting, and pilot operated can all be selected.
ASCO Electromagnetic Valve G551A018MS Product Technical Data
4. Electrical selection: The voltage specifications should preferably be AC220V or DC24, which are more convenient.
5. Choose based on the duration of continuous work: normally closed, normally open, or continuously powered on
1) When the ASCO solenoid valve needs to be opened for a long time and the duration exceeds the closing time, the normally open type should be selected;
2) If the opening time is short or the opening and closing time is not long, choose the normally closed type;
3) However, for some working conditions used for safety protection, such as furnace and kiln flame monitoring, the normally open type cannot be selected, and the long-term electrified type should be selected.
6. ASCO solenoid valve selects auxiliary functions according to environmental requirements: explosion-proof, check, manual, waterproof fog, water spray, and submersible.
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