ATOS Atos solenoid valve DHI-0610/A-X

ATOS Atos solenoid valve DHI-0610/A-X

Atos ATOS solenoid valve ATOS proportional valve ATOS pressure reducing valve ATOS relief valve ATOS directional valve ATOS vane pump ATOS one-way valve

Atos ATOS solenoid valve

Electromagnetic directional valve (referred to as solenoid valve) is a small four-way directional valve operated by an electromagnet. For larger diameter oil circuits, an electro-hydraulic directional valve composed of solenoid valves and hydraulic directional valves must be used.

Electromagnetic valves are generally used to control pilot valves. By manually pressing button switches, limit switches, travel switches, pressure inheritance electrical appliances, and other devices' electrical signals, the electromagnetic valve is operated to control the sequential action of oil unloading (returning the oil discharge port of the overflow valve to the oil tank) and change the direction of oil flow

Distribution of direct acting solenoid valves:
Principle of solenoid valve: 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.
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.
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.

1、 Valve body leakage: Reason: 1. There are sand holes or cracks in the valve body. 2. Cracking treatment during valve body welding: 1. Polish the suspected crack area and etch it with a 4% nitric acid solution. If there are cracks, they can be displayed. 2. Excavate and repair the crack area.

2、 The valve stem and its cooperating thread are damaged or the valve stem head is broken, and the valve stem is twisted: Reason: 1. Improper operation, excessive force on the switch, malfunction of the limit device, and failure to maintain excessive torque. 2. The thread cooperation is too loose or too tight. 3. If there are too many operations and the service life is too long, handle it: 1. Improve the operation and do not apply too much force; Check the limit device and torque maintenance equipment. 2. Select materials that are suitable and install the service in accordance with the requirements. 3. Replace spare parts

3、 Leakage of valve cover contact surface: Reason: 1. Insufficient or biased tightening of bolts 2. Gaskets that do not meet requirements or are damaged 3. Defective contact surface Treatment: 1. Re tighten bolts or make the gap between the door cover flange common 2. Replace gaskets 3. Collapse repair of the door cover sealing surface

Partial models of ATOS solenoid valves

DHI-0610-X 110/50/60AC,
DHI-0610-X 230/50/60AC 23,
DHI-0610-X 24DC,
DHI-0611/A-X 24DC 23,
DHI-0611/FC-X 24DC 23,
DHI-06119/A-X 24DC 23,
DHI-0611-X 24DC 23,
DHI-0612/A-X 24DC,
DHI-0613/A-X 24DC 23,
DHI-0613/WP-X 230AC,
DHI-0613-X 230/50/60AC,
DHI-0613-X 24DC,
DHI-0614-X 24DC,
DHI-0616/A-X 230/50/60AC,
DHI-0618/A-X 24DC 23,

ATOS Atos solenoid valve DHI-0610/A-X