ATOS solenoid valve DHA-0713/PA-NPT/7 in stock

Brand

ATOS/Italian Atos

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Energy, Road/Rail/Marine, Comprehensive

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. 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. Common types include check valves, safety valves, directional control valves, and speed control valves.

ATOS Solenoid Valve Working Principle:

An ATOS solenoid valve contains a sealed chamber with through-holes at different positions, 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.

ATOS Solenoid Valve Main Classifications:

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

1) Direct-acting 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.

Characteristics: 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-Action Solenoid Valve:

ATOS Solenoid Valve Principle: It combines direct-acting and pilot-operated principles. When there is no pressure difference between the inlet and outlet, upon energization, the electromagnetic force directly lifts the pilot valve and the main valve closing element sequentially, opening the valve. When the inlet and outlet reach the starting pressure difference, upon energization, the electromagnetic force actuates the pilot valve, increasing the pressure in the lower chamber of the main valve and decreasing the pressure in the upper chamber, 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 downward, closing the valve.

3) Pilot-Operated Solenoid Valve:

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

Features: High 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 by 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.

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

DHU-0751/2P-X 24DC 20

DHU-0751/2-X 24DC

DHU-6751/2P-X 24DC

DKI-1610/A-X 24DC 24

DKI-1610-X 24DC

DKI-1611-X 24DC

DKI-1612/A-X 230/50/60AC 24

DKI-1612-X 24DC 24

DKI-1613/A-X 24DC 24

ATOS Solenoid Valve Selection Notes:

ATOS Solenoid Valve Selection Basis:

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

Selection Basis:

1. Select the solenoid valve based on pipeline parameters: nominal diameter (DN) and connection method

1) Determine the nominal diameter (DN) according to the on-site pipeline inner diameter or flow requirement;

2) Connection method: Generally, >DN50 requires a flange connection; ≤DN50 can be freely selected according to user needs.

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

1) Corrosive fluids: Corrosion-resistant solenoid valves and all-stainless steel valves 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 are preferred;

3) Fluid state: Fluids can be gaseous, liquid, or mixed, especially for diameters greater than DN25, which must be clearly distinguished;

4) Fluid viscosity: Generally, any viscosity can be selected below 50 cSt. If the viscosity exceeds this value, a high-viscosity solenoid valve should be selected. The company mainly deals with European and American brands and can source brands from any European country. For example, our key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi