ATOS solenoid valves on sale in Shanghai.

Brand

ATOS/Italian Atos

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Environmental Protection, Biotechnology, Petroleum, Pharmaceutical/Biopharmaceutical, Comprehensive

ATOS Solenoid Valve Main Classifications

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ATOS solenoid valves have a sealed chamber with through-holes at different positions. Each hole connects to a different oil pipe. In the center of the chamber is a piston, and on either side are two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. By controlling the movement of the valve body, different drain holes are opened or closed. The inlet hole is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the cylinder, which in turn moves the piston rod, which in turn drives the mechanical device. Thus, controlling the current to the electromagnets controls the mechanical movement.

ATOS Solenoid Valves are mainly classified as follows:

Solenoid valves are divided into three main categories based on their operating principle:

1) Direct-acting Solenoid Valves:

Principle: When energized, the electromagnetic coil generates electromagnetic force to lift the closing element from the valve seat, opening the valve. When de-energized, the electromagnetic force disappears, and the spring presses the closing element back onto the valve seat, closing the valve.

Features: Can operate normally under vacuum, negative pressure, and zero pressure, but the nominal diameter is generally no more than 25mm.

2) Step-by-Step Direct-acting Solenoid Valves:

Principle: This combines direct-acting and pilot-operated principles. When there is no pressure difference between the inlet and outlet, energizing the valve opens it by the electromagnetic force directly lifting the pilot valve and the main valve closing element sequentially. When the inlet and outlet reach the starting pressure difference, energizing the valve opens it by the electromagnetic force piloting the pilot valve, causing the pressure in the lower chamber of the main valve to rise and the pressure in the upper chamber to fall, thus using the pressure difference to push the main valve open. When de-energized, the pilot valve uses spring force or medium pressure to push the closing element downwards, closing the valve. Features: Reliable operation even at zero pressure differential, vacuum, or high pressure, but requires higher power and must be installed horizontally.

3) Pilot-operated solenoid valve:

Principle: When energized, electromagnetic force opens the pilot orifice, causing a rapid drop in pressure in the upper chamber. This creates a pressure differential around the closing element, with higher pressure at the bottom and lower pressure at the top. Fluid pressure pushes the closing element upward, opening the valve. When de-energized, spring force closes the pilot orifice. Inlet pressure quickly creates a pressure differential around the closing element through the bypass orifice, with lower pressure at the bottom and higher pressure at the top. Fluid pressure pushes the closing element downward, closing the valve.

Features: Higher upper limit of fluid pressure range; can be installed arbitrarily (customization required), but must meet fluid pressure differential conditions.

2. Solenoid valves are divided into six subcategories based on differences in valve structure, materials, and operating principles: direct-acting diaphragm structure, step-direct-acting diaphragm structure, pilot-operated diaphragm structure, direct-acting piston structure, step-direct-acting piston structure, and pilot-operated piston structure.

3. Solenoid valves are classified according to function: water solenoid valves, steam solenoid valves, refrigeration solenoid valves, cryogenic solenoid valves, gas solenoid valves, fire-fighting 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-pressure solenoid valves, explosion-proof solenoid valves, etc.

DHRZO-P5-012/25 20

DHU-0610/A-X 24DC 20

DHU-0610/FI/NC-X 24DC 20

DHU-0610-X 24DC 20

DHU-0610-X 48DC 20

DHU-0611-X 24DC

DHU-0614/A-X 24DC 20

DHU-0614-X 24DC 20

DHU-06191-X 24DC 20

DHU-06194-X 24DC 20

DHU-0630/2/A-X 24DC

DHU-0630/2-X 24DC

DHU-0631/2/A-X 24DC

DHU-0631/2/FC-X 24DC 20

DHU-0631/2-X 24DC

DHU-0632/2/A-X 24DC 20

DHU-0632/2-X 24DC 20

DHU-0639/C-X 24DC 20

DHU-0671-X 24DC

DHU-0710/L1-X 24DC 20

DHU-0710-X 24DC

DHU-0711/WP-X 24DC 20

DHU-07119-X 24DC 20

DHU-0711-X 24DC

DHU-0713/1-X 24DC

DHU-0713/WP-X 24DC 20

DHU-0713P-X 24DC 20

DHU-0713-X 24DC

DHU-07149-X 24DC 20

DHU-0714-X 24DC

DHU-0718-X 24DC

DHU-0750/2/FI/NC-X 24DC 20

DHU-0750/2-X 24DC

DHU-0751/2-00 20 /WG

ATOS solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both accuracy and flexibility. There are many types of solenoid valves, each playing a different role in the control system. Commonly used types include check valves, safety valves, directional control valves, and speed control valves.

ATOS hydraulic pumps, piston pumps, gear pumps, axial piston pumps, vane pumps, cylinders, relief valves, proportional valves, stack valves, solenoid valves, amplifiers, solenoid directional valves, pressure reducing valves, safety valves, and control valves from Italy.