ATOS solenoid valve RZGA-A-033/80/M/7 in stock

Brand

ATOS/Italian Atos

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Medical & Health, Food/Agricultural Products, Chemical Industry, Agriculture, Forestry, Animal Husbandry & Fishery, Comprehensive

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ATOS Piston Pumps, ATOS Gear Pumps, ATOS Axial Piston Pumps, ATOS Vane Pumps, ATOS Hydraulic Cylinders

ATOS Solenoid Valve Working Principle:

ATOS solenoid valves contain a sealed chamber with through-holes at different locations, each connecting to a different oil pipe. Inside the chamber is a piston, flanked by two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. Controlling the movement of the valve body opens or closes different drain holes. 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 flow of current to the electromagnets controls the mechanical movement.

Main Classifications of ATOS Solenoid Valves

1. ATOS solenoid valves are classified into three main categories based on their operating principle:

1) Direct-acting solenoid valves:

ATOS solenoid valve principle: When energized, the electromagnetic coil generates electromagnetic force that lifts 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.

ATOS solenoid valve characteristics: Operates 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 valve:

ATOS solenoid 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:

ATOS solenoid valve principle: When energized, electromagnetic force opens the pilot orifice, causing a rapid drop in pressure in the upper chamber, creating a pressure differential around the closing element (higher at the bottom and lower at the top). Fluid pressure pushes the closing element upward, opening the valve. When de-energized, spring force closes the pilot orifice, and inlet pressure quickly creates a pressure differential around the closing element through the bypass orifice, causing the fluid pressure to push the closing element downward, closing the valve.

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

2. ATOS solenoid valves are divided into six subcategories based on differences in valve structure, materials, and operating principles: direct-acting diaphragm structure, step-by-step direct-acting diaphragm structure, pilot-operated diaphragm structure, direct-acting piston structure, step-by-step direct-acting piston structure, and pilot-operated piston structure. 3. ATOS solenoid valves are classified by function as follows: 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. ATOS Solenoid Valve Model List:

DHI-0631/1/2/A-X 24DC

DHI-0631/2/A-IX 24DC

DHI-0631/2/A-X 110/50/60AC 23

DHI-0631/2/A-X 230/50/60AC 23

DHI-0631/2/P-X 24DC

DHI-0631/2/WP-X 12DC 23

DHI-0631/2/WP-X 220DC 23

DHI-0631/2/WP-X 230/50/60AC

DHI-0631/2P/A-X 24DC

DHI-0631/2P-X 24DC

DHI-0631/2-X 230/50/60AC

DHI-0713-X 110/50/60AC

DHI-0713-X 230/50/60AC

DHI-0713-X 24DC

DHI-0713-X 24DC 23/PE

DHI-0714/WP-X 230/50/60AC

DHI-0714/WP-X 230/50/60AC 23 /PE

DHI-0714-X 230/50/60AC

DHI-0714-X 24DC

DHI-0715/FI/NC-X 24DC

DHI-0715-X 24DC

DHI-0716-X 24DC

DHI-0717-X 24DC

DHI-0718-X 230/50/60AC

DHI-0718-X 24DC

DHI-0750/2-X 24DC

DHI-0751/2/FI/NC-X 24DC 23

DHI-0751/2/FI/NO-X 24DC 23

DHI-0751/2/WP-X 230/50/60AC

DHI-0751/2/WP-X 230/50/60AC 23/PE

DHI-0751/2/WP-X 24DC

DHI-0751/2-X 110/50/60AC 23

DHI-0751/2-X 230/50/60AC

DHI-0751/2-X 24DC

DHO-0630/2/A-X 24DC 20

DHO-0631/2/A-X 24DC 20

DHO-0631/2/L1-X 24DC 20

DHO-0631/2-X 24DC

DHO-0639/O-X 24DC 20

DHO-0710-X 24DC 20

DHO-0711-X 24DC

DHO-0713-X 24DC 20

DHO-07191-X 24DC

DHO-0750/2-X 24DC 20

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

ATOS Solenoid Valve Selection Notes:

ATOS Solenoid Valve Selection Basis

ATOS solenoid valve selection should first follow four principles in order: safety, reliability, applicability, and economy. Secondly, it should be selected based on six aspects of the on-site operating conditions (i.e., pipeline parameters, fluid parameters, pressure parameters, electrical parameters, actuation method, and special requirements).

ATOS Solenoid Valve Selection Criteria:

1. Selection of Solenoid Valves Based on Pipeline Parameters: Nominal Diameter (DN), Connection Type

1) Determine the nominal diameter (DN) based on the inner diameter of the pipeline or flow requirements.

2) Connection type: Generally, for DN >50, a flange connection should be selected; for DN ≤50, the connection type can be freely selected according to user needs.

2. Selection of Solenoid Valves Based on Fluid Parameters: Material, Temperature Group

1) Corrosive fluids: Corrosion-resistant solenoid valves and all-stainless steel are recommended; Ultra-clean edible fluids: Food-grade stainless steel solenoid valves are recommended.

2) High-Temperature Fluids: Solenoid valves made with high-temperature resistant electrical and sealing materials should be selected, and piston-type valves should be chosen.

3) Fluid State: Fluids can be gaseous, liquid, or mixed, especially when the diameter is greater than DN25, it is essential to distinguish between these states.

4) Fluid Viscosity: Generally, any fluid can be selected below 50 cSt; if it exceeds this value, a high-viscosity solenoid valve should be selected. 3. Selecting Solenoid Valves Based on Pressure Parameters: Principle and Structure

1) Nominal Pressure: This parameter has the same meaning as other general-purpose valves, determined by the nominal pressure of the pipeline.

2) Working Pressure: If the working pressure is low, a direct-acting or step-direct-acting principle must be selected. For working pressure differentials above 0.04 MPa, direct-acting, step-direct-acting, and pilot-operated valves can all be selected.

4. Electrical Selection: AC220V and DC24V voltage specifications should be prioritized for convenience.

5. Selecting Based on Continuous Working Time: Normally Closed, Normally Open, or Continuously Energized

1) When the solenoid valve needs to be open for a long time, and the continuous time is longer than the closing time, a normally open type should be selected.

2) If the opening time is short or the opening and closing times are infrequent, a normally closed type should be selected.

3) However, for some safety protection applications, such as furnace and kiln flame monitoring, normally open valves cannot be selected; a continuously energized type should be chosen. 6. Select auxiliary functions according to environmental requirements: explosion-proof, check valve, manual operation, waterproof mist, water spray, and submersible.

ATOS solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation systems 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 precision 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.