ATOS Solenoid Directional Valve User Guide

Brand

ATOS/Italian Atos

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Medical & Health, Environmental Protection, Food/Agricultural Products, Agriculture, Forestry, Animal Husbandry & Fishery, Comprehensive

ATOS solenoid directional valves are designed and tested with innovative concepts to meet the needs of modern machinery to the greatest extent: adjustable switching time, low noise, low power consumption, full functionality, and safe and reliable operation. This section provides concise and useful information for selecting the best solenoid valves and plays its due role in new industrial technology applications.

ATOS piston pumps, ATOS gear pumps, ATOS axial piston pumps, ATOS vane pumps, ATOS cylinders, ATOS relief valves, ATOS proportional valves.

ATOS solenoid directional valves consist of an electromagnetic coil and a magnetic core, forming a valve body with 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, thus 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. The term "two positions" refers to energized and de-energized states for a solenoid valve, and open and closed states for the valve it controls. When current flows through the coil, it generates an excitation effect, attracting the moving iron core to the fixed iron core. The moving iron core then drives the spool valve core and compresses the spring, changing the position of the spool valve core and thus changing the direction of the fluid. When the coil is de-energized, the spring force pushes the spool valve core back, causing the fluid to flow in its original direction.

Common faults of ATOS solenoid directional valves include the solenoid valve not operating. The following troubleshooting steps should be taken:

(1) The solenoid N terminal is loose or the wire is detached. The solenoid valve will not be energized. Tighten the wire. (2) If the solenoid valve coil is burnt out, disconnect the solenoid valve wiring and measure with a multimeter. If it is open-circuited, the solenoid valve coil is burnt out. This can be caused by the coil being subjected to heat, leading to poor insulation and magnetic leakage, resulting in excessive current and burnout. Therefore, prevent rainwater from entering the solenoid valve. Additionally, an overly stiff spring, excessive reaction force, or too few coil turns and insufficient suction can also cause the coil to burn out.

(3) If the solenoid valve is stuck, the clearance between the valve sleeve and the valve core is very small. When mechanical impurities are introduced or the valve body is rusted, it can easily become stuck. 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 Directional Valve Features:

Uses the thrust of an electromagnet to push the valve core to move in order to control the flow direction.

Two-way Four-way

Classification: Two-way < Three-way Three-way < etc.

Four-way Five-way

Example: Three-way four-way solenoid directional valve:

Composition: Valve body, valve core, spring, electromagnet, etc.

Working principle: In the illustrated position, P, A, B, and T are all closed.

Right electromagnet energized: P → A, B → T

Left electromagnet energized: P → B, A → T

Two-position three-way solenoid directional valve:

Working principle: In the illustrated position, P → A B ┴

Electromagnet energized: P → B A ┴

Symbol:

AC (D)

Electromagnet classification: By power supply < DC (E)

Dry type

By internal oil <

Wet type, longer lifespan

ATOS solenoid directional valve stock list:

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

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

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 The company primarily deals in European and American brands, and can source brands from any European country. For example, its key German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, HIRSCHMANN industrial switches, Henschler, MURR, SCHMERSAL, SAMSON, and EPRO (a subsidiary of Emerson).

American brands include MOOG, ASCO solenoid valves, MAC solenoid valves, NUMATICS, PARKER pneumatics and hydraulics, VICKERS, and ROSS.

British brands include Norgren. Italian brands OMAL, ATOS, CAMOZZI, UNIVER, and Camozzi.