ATOS solenoid valve inner diameter or flow rate requirements

Brand

ATOS/Italian Atos

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Energy, Electrical, General

ATOS Solenoid Valve Selection Criteria:

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

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

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. Selecting 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 when the diameter is greater than DN25, these must be clearly distinguished.

4) Fluid viscosity: Generally, any viscosity 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 Structural Types

1) Nominal pressure: This parameter has the same meaning as other general-purpose valves and is 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 valve must be selected; for low working pressure differentials above 0.04 MPa, direct-acting, step-direct-acting, and pilot-operated valves can all be selected. 4. Electrical Selection: AC220V or DC24V voltage specifications are preferred for ease of use.

5. Selection Based on Continuous Operating Time: Normally Closed, Normally Open, or Continuously Energized

1) When the solenoid valve needs to be open for a long time, and the duration 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, a normally open type cannot be selected; a continuously energized type should be chosen.

6. Selection of Auxiliary Functions Based on Environmental Requirements: Explosion-proof, Check Valve, Manual Operation, Water-resistant (fogproof), Water Spray, Submersible.

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

ATOS solenoid valves use 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 ports are opened or closed. The inlet port 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.

An ATOS solenoid valve consists of an electromagnetic coil and a magnetic core, and is a valve body containing one or more orifices. When the coil is energized or de-energized, the rotation of the magnetic core causes flow through the valve body or is cut off, thereby changing the direction of the fluid. The electromagnetic components of the solenoid valve consist of a stationary iron core, a moving iron core, and a coil; the valve body consists of a spool, a spool sleeve, and a spring base. The electromagnetic coil is directly mounted on the valve body, which is enclosed in a sealing tube,

forming a simple and compact assembly. Commonly used solenoid valves in production include 2-position 2-way and 2-position 3-way valves. "2-position" for a solenoid valve means energized and de-energized, and for the controlled valve, it means open and closed. When current flows through the coil, it generates excitation, attracting the moving iron core to the stationary iron core. The moving iron core drives the spool and compresses the spring, changing the position of the spool and thus the direction of the fluid. When the coil is de-energized, the spring force pushes the spool, pushing the moving iron core back, allowing the fluid to flow in its original direction. Common ATOS solenoid valve malfunctions include the solenoid valve not operating. Troubleshooting should be done from the following aspects:

(1) Loose or detached solenoid N terminal. The solenoid valve will not receive power. Tighten the terminal.

(2) Burned-out solenoid coil. Disconnect the solenoid valve wiring and measure with a multimeter. If an open circuit is detected, the solenoid coil is burnt out. This can be caused by the coil being subjected to NJ (non-electric shock), resulting in poor insulation and magnetic leakage, leading to excessive current and burnout. Therefore, prevent rainwater from entering the solenoid valve. Additionally, an overly stiff spring, excessive reaction force, or insufficient coil turns can also cause burnout.

(3) Solenoid valve jamming. The clearance between the valve sleeve and valve core of the solenoid valve is very small. When mechanical impurities are introduced or the valve body is rusted, it can easily jam. The fundamental solution is to disassemble the solenoid valve, remove the N core and valve core sleeve, and clean them with CCI4 to ensure the valve core moves freely within the valve sleeve. During disassembly, pay attention to the assembly sequence of each component and the position of the external wiring to ensure correct reassembly and wiring. (5) If it is a pilot-operated solenoid valve, check if the differential pressure in the pipeline is too small. If the differential pressure is too small, the solenoid valve will not work properly. In this case, a direct-acting solenoid valve should be selected. If the differential pressure is too large, far exceeding the design value of the solenoid valve, it will also not work properly. In this case, a high-performance solenoid valve should be used.

(6) If dirt in the pipeline blocks the small hole of the pilot valve, the pilot valve will not be able to open properly, and the main valve will not be able to open in time. The valve body can be disassembled, the dirt cleaned, and reassembled to work properly.

(7) In addition, solenoid valves are generally installed horizontally. If they are side-mounted, it may cause the valve to not close tightly, i.e., internal leakage. Side-mounting should be avoided as much as possible.

ATOS Solenoid Valve

DHI-0610/A-X 230/50/60AC

DHI-0610/A-X 24DC 23

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 twenty three

DHI-0630/2/A-X 230/50/60AC 23

DHI-0630/2/A-X 24DC 23

DHI-0630/2-X 24DC

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

Our business scope includes:

Hydraulic components:

Solenoid directional valves, directional valves, check valves, stack valves, relief valves, counterbalancing valves, proportional valves, manual directional valves, flow valves, pressure reducing valves,

Throttle valves, pressure control valves, back pressure valves, filling valves, flow dividers, shuttle valves, pressure relays, cartridge valves, pneumatic valves, piston pumps,

Gear pumps, vane pumps, cycloidal hydraulic motors, oil coolers, hydraulic cylinders, etc.;

Pneumatic components:

Air source processor assemblies, filters, pressure regulating valves, lubricators, solenoid valves, pneumatic valves, angle seat valves, manual valves, hand-operated valves, foot valves,

Mechanical valves, check valves, vacuum generators, cylinders, magnetic switches, shock absorbers, pressure gauges, quick couplings, floating couplings,

Pressure gauge switches, water coolers, electric positioners, PU tubing, vacuum suction cups, oil filters, vibrators;

Electrical components include:

Relays, sensors, converters, proximity switches, encoders, programmable controllers;

German brands:

E+H Endershaus, REXROTH, HENGSTLER, MURR

BURKERT, BALLUFF, HIRSCHIMAN, SICK

HYDAC, P+F, SCHMERSAL, HERION

FESTO, WAHE, HEIDENHAI, GSR solenoid valves

STAUFF, PILZ, GESSMANN, LENZE

TURCK, IFM, KUBLER, MAHLE

American brands:

MOOG, PARKER, EATON, SOR SUN, BANNER, AI-TEK, MAC

ASCO, FAIRCHILD, JOUCOMATIC, ROSS

VICKE, BENTLEY, AMETEK, UE

DENISON, DANFOSS, NUMATICS, MTS

European Brands:

ATOS, GEFRAN, CAMOZZI, UNIVER

KIMOGROUZET, NORGREN, GRS (UK)

Japanese Brands:

TOYOOKI, NACHI, KOGANEI, SUNX

DAIKIN, CKD, YUKEN, TACO