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Solenoid valve Yoshitake DP100100F DP100C 100FC Solenoid valve Yoshitake DP-100,100F DP-100-C, 100F-C
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  • Max. operating pressure: 1.0 MPa
  • Liquid temperature: 5-180 °C
  • Material: cast stainless steel, stainless steel, fluoroplastic
Solenoid valve Yoshitake DP100D 100FD Solenoid valve Yoshitake DP-100-D, 100F-D
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  • Max. operating pressure: 1.0 MPa
  • Liquid temperature: 5-180 °C
  • Material: cast stainless steel, stainless steel, fluoroplastic
Solenoid valve Yoshitake DP200 200N DP200F 200FN Solenoid valve Yoshitake DP-200, 200-N DP-200F, 200F-N
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  • Max. operating pressure: 1.0 MPa
  • Liquid temperature: 5-60 °C
  • Material: cast bronze, nitrile butadiene rubber
Yoshitake DP10 solenoid valve Yoshitake DP-10 solenoid valve
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  • Max. operating pressure: 1.0 MPa
  • Liquid temperature: 5-180 °C
  • Material: cast bronze, stainless steel, fluoroplastic
Solenoid valve Yoshitake DP12141618 Solenoid valve Yoshitake DP-12,14,16,18
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  • Max. operating pressure: 1.0 MPa
  • Liquid temperature: 5-60 °C
  • Material: cast bronze / cast stainless steel, NBR
Yoshitake DP34N Sealed and Explosion Proof Solenoid Valve Yoshitake DP-34N Sealed and Explosion Proof Solenoid Valve
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  • Max. operating pressure: 1.6 MPa
  • Liquid temperature: 5-60 °C
  • Material: brass, fluoroelastomer
Yoshitake DD23 solenoid valve Yoshitake DD-2,3 solenoid valve
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  • Max. operating pressure: 0.8 МПа
  • Liquid temperature: 5-175 °С
  • Material: cast stainless steel, stainless steel, PTFE/FPM
Yoshitake DD37 32 Way Solenoid Valve Yoshitake DD-37 3/2 Way Solenoid Valve
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Solenoid valves

Solenoid (also known as solenoid) valve is a type of pipeline shut-off valves of plunger or diaphragm type with remote (pilot) control, which implements an electric drive way of controlling the shut-off and unlocking mechanism. Solenoid valves have a special place in the numerous family of pipeline valves. First of all, because, thanks to modern wired and wireless technologies for transmitting control signals, they make it possible to organize remote control at large and ultra-long distances, most widely implement the principles of automation of control of pipeline networks for various purposes based on computerized software systems.

Pilot solenoid valve design

  Structurally, a solenoid valve is a classic pipeline seated or diaphragm valve, with a smooth rising (non-screw) stem, with a poppet, conical (needle) or diaphragm valve, in which a control pilot unit in the form of an electromagnetic (solenoid) is used to drive the smooth stem of the closing valve reels with a movable ferrimagnetic core.

It can be made as a single-seat (two-way) or two-seat (three-way) construction type, both in normally open and normally closed versions. The movable ferrimagnetic rod of the coil is coupled with a spring, which either holds it in the lowered position (and together with it presses the shut-off element against the valve seat, in a normally closed version), or in the raised position (when the shut-off unit of the valve is normally open).

The materials for manufacturing the bodies and valve mechanisms of pilot solenoid valves must meet the temperature parameters of the working medium and its chemical (corrosive) activity. For work with various liquid and gas media (water, steam, air, acids, nitrogen, argon, oil, etc.) valve bodies can be made of cast iron, stainless steel, brass, bronze. The materials for the manufacture of the electromagnetic coil are determined by the requirements of electrical engineering (ferrimagnetic steels, copper conductors, etc.).

Соленоидные клапаны

  The operating principle of the servo-driven solenoid valve

The operating principle of the pilot solenoid valve is quite simple. When an electric control current is applied to the drive solenoid coil, then, according to the law of electromagnetic induction, an EMF electromotive force arises inside it, which acts on its ferrimagnetic rod connected to the valve stem. Depending on the polarity of the connection of the solenoid coil, the EMF either pushes the ferrimagnetic rod (and with it the valve plug stem) downward, thereby pressing the plug against the seat, which leads to the blocking of the medium flow (in the option of a normally open valve), or retracts the rod (a with it and the stem of the valve plug) upwards, thereby opening the flow area of the valve for the medium flow (in the option of a normally closed valve). When closing the valve, the EMF of the coil must be sufficient to overcome the opposition of the medium pressure, and when opening - to overcome the force of the hold-down spring.

  Advantages of servo solenoid valves

  In modern technology, a pilot electric drive is, first of all, a guarantee of simplicity, versatility of use, and the possibility of control automation. Indeed, in relation to settlements and industrial facilities, electric networks are almost everywhere, moreover, they can be easily "insured" by autonomous power supplies (electric batteries). Power supply and control networks are easy to design and upgrade, they operate at almost any distance. Unlike drive steam, pneumatics or hydraulics, the use of which is rather localized. And in today's realities, an electric drive (servo drive) is also the possibility of digitalization (computerization) of control, based on the principles of programming work processes and cycles.

Thus, the use of pilot solenoid valves allows:

  • apply a remote control system, including programmable control (servo-control) of pipeline networks and equipment at any electrified facility;
  • to expand the system of remote control of pipeline networks and equipment practically at any distance from the control center;
  • it is easy and relatively inexpensive to introduce or modernize control and automation systems for pipeline networks and heating equipment.

Disadvantages of solenoid servo-driven valves

  The disadvantages of solenoid valves include:

  • Volatility. Can only be used on electrified industrial, household or domestic facilities.
  • Sensitivity to any damage to power supply and control networks, power outages. For use at critical or emergency-hazardous facilities and industries, electric servo drives require a backup (emergency) power supply.
  • Require electrical safety during connection and operation. For use in conditions of high humidity or water content, electric servo drives require a high degree of IP protection.
  • Due to the limited power characteristics of the pilot solenoid coils, which, when closing the valve, must overcome the pressure resistance of the medium flow, their use is limited to pipeline diameters up to DN200.

Scope of application of solenoid valves

The best effect of using solenoid valves is obtained by:

  • as part of remote analog servos;
  • as part of integral complexes for automation of pipeline technological, transport and heat engineering systems, with computerized program control.

Solenoid valves are used in household, utility and industrial pipeline networks to automate the supply of:

  • hot, cold, drinking water;
  • water vapor;
  • compressed air;
  • gas and liquid fuels;
  • oils and other petroleum products;
  • nitrogen, argon, freons, other industrial and welding gases;
  • liquid food media;
  • industrial corrosive environments;
  • in ultra-precise and sterile medical, laboratory and analytical equipment for the pharmaceutical and food industries.

  Pilot Solenoid Valve Selection Parameters

  The parameters for the selection of a controlled solenoid valve are determined by the characteristics:

  • The working pipeline system in which the valve mechanism is to work.
  • Power supply and electrified servo control systems, the network of which will be connected to the solenoid coil of the valve.

Selection parameters according to the characteristics of the working pipeline system:

  material of manufacture of the body and valve mechanism, in accordance with the requirements for the chemical activity of the working environment;

  • operating temperature range of the medium, degrees C;
  • maximum working pressure in the system, MPa (Bar);
  • admissible hydraulic resistance of the valve, MPa;
  • the required tightness of the valve closing (permissible or impermissible leakage of the medium through the valve seat);
  • required maximum throughput, m 3 / hour (l / min);
  • connecting dimensions for connection to the pipeline: bore DN (mm), flanged or threaded connection, if threaded - dimension and type of thread (internal or external).

Selection parameters according to the characteristics of the power supply system and servo-control:

  • type of power supply network - direct current, alternating current: two-phase, three-phase;
  • mains operating voltage, V;
  • power supply current, A.

Benefits of Yoshitake Solenoid Valves

  OPEKS Energysystems, offering buyers of its heat and power equipment only the best components and assemblies for its heat engineering piping, recommends equipping a remote automated control system for heat exchange equipment based on electromagnetic valves manufactured by the well-known Japanese company Yoshitake.

For more than seventy years, the Japanese company Yoshitake has specialized in the production of reliable and energy-saving equipment for hydraulic, pneumatic, water and gas channel (pipeline) systems of various compositions and purposes. The guaranteed quality of Yoshitake products is confirmed by the high business reputation and authority that the company has won all over the world.

Yoshitake solenoid valves are distinguished by:

  • technical perfection, thoughtfulness and compact design;
  • strict compliance with the declared technical parameters;
  • stability of performance;
  • tightness and high precision in work;
  • technical reliability and durability.

Yoshitake valves are manufactured exclusively from high quality, durable and corrosion resistant materials.If you are interested in long and trouble-free operation of a servo, automated piping system, you should definitely equip it with high quality and reliable solenoid valves from Yoshitake.

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Solenoid valves

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