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Inst Tools > Blog > Control Valves > Solenoid Valves Terminology

Solenoid Valves Terminology

Last updated: April 13, 2019 2:25 pm
Editorial Staff
Control Valves Solenoid Valve
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A solenoid valve is a combination of two functional units:

Contents
SOLENOID VALVE TERMINOLOGYCoilCoreCore springCore tubeCoverDiaphragmDisc, valve discManual operatorManual operator springOrificesPlug-nutRetainer clipRockerSeating or valve seatSolenoid enclosureValve body
  1. A solenoid operator essentially consisting of a coil, core, core tube, shading coil and spring(s).
  2. A valve body containing orifices in which a disc, diaphragm or piston etc. is positioned according to the type of technology used.

The valve is opened or closed by movement of the magnetic core which is drawn into a solenoid when the coil is energized.

Solenoid Valves Terminology

SOLENOID VALVE TERMINOLOGY

Coil

Electrical part of the valve consisting of a spool wound with insulated copper wire creating a magnetic flux when energised. The coil is held in place on the tube with a retaining clip.

Core

Soft-magnetic plug-nut moved by magnetic forces (flux generated by the coil).

Core spring

Spring which keeps the core in fixed position when the coil is de-energised.

Core tube

Stainless steel tube closed at one end, in- stalled to improve the magnetic flux of the solenoid coil upon energisation

Cover

Cover mounted on the valve body and incorporating a number of orifices.

Diaphragm

Seal-tight diaphragm isolating the fluid from the control system.

Disc, valve disc

Sealing material on the core or disc-holder which shuts off the seat orifice.

Manual operator

Manual operation of the lever to open or close the orifices.

Manual operator spring

Drawback spring ensuring return of the pulse control device to its initial position

Orifices

Orifices for fluid transit.

Plug-nut

Stationary core pressed in the closed end of the core tube, installed to improve the magnetic flux of the solenoid coil upon energisation.

Retainer clip

Clip anchoring the coil to the yoke.

Rocker

Moving part serving to open and close the orifices for the passage of fluid.

Seating or valve seat

Specially formed border of the main valve.

Solenoid enclosure

Metal housing around the coil for electrical and mechanical protection, as well as protection against ingress of water or dust.

Valve body

Main part of the valve with all ports and main seats

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2 Comments
  • Wrubel says:
    August 7, 2015 at 11:35 pm

    I’m glad I came across this post. Emailed it to myself to learn afterwards from my desktop. Will try for connecting with you on Facebook then too.

    Reply
  • hossein says:
    December 3, 2016 at 7:41 am

    hi reddy, thanks very much, great.

    Reply

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