Skip to main content

Solenoid Valves Terminology

 A solenoid valve is a combination of two functional units:


A solenoid operator essentially consisting of a coil, core, core tube, shading coil and spring(s).

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 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


Labels:

Comments

  1. legacymarbleandgraniteJanuary 18, 2021 at 9:05 PM

    Very interesting. Your article is so convincing that I can never stop myself from saying anything about it. You are doing a great job, thanks for sharing such a great blog. Amorphous Cores for sale online in USA

    ReplyDelete

Post a Comment

Popular posts from this blog

Ferrules and Cross Ferruling

 Ferrules are identification labels provided for every wire terminations in an instrument, equipment, or electrical/instrumentation control panels. These tube-shaped sleeves can be inserted easily on each individual wire in a multi-core cable. In earlier days fixed digits/letters are used as ferrules, but now Instrumentation engineers/technicians prints out desired ferrules by using a ferrule printing machine. Typical Ferrule The numbers/ letters on the ferrules will be given as per the approved electrical hook up or loop diagrams. This helps technicians to easily identify a particular loop/wiring from a series of terminal blocks and to troubleshoot the desired terminal connection. Separate numbers on the ferrules distinguish the positive and negative polarities of wires, thus ensure the polarity protection of the instrument. Cross Ferruling  As a wire is connected on its both ends, it is quite useful to use a cross reference method for wire identification. Unlike normal ferru...
1 comment
Read more

PLC Program for Mixing Tank

 Create a ladder diagram for controlling a batch mixing process. Implement a PLC program for mixing tank or Mixing Process using PLC Ladder Logic. PLC Program for Mixing Tank Fig : Mixing tank A tank is used to mix two liquids. The required control circuit operates as follows: A. When the START button is pressed, solenoids A and B energize. This permits the two liquids to begin filling the tank. B. When the tank is filled, the float switch trips. This de-energizes solenoids A and B and starts the motor used to mix the liquids together. C. The motor is permitted to run for 1 minute. After 1 minute has elapsed, the motor turns off and solenoid C energizes to drain the tank. D. When the tank is empty, the float switch de- energizes solenoid C. E. A STOP button can be used to stop the process at any point. F. If the motor becomes overloaded, the action of the entire circuit will stop. G. Once the circuit has been energized, it will continue to operate until it is manually stopped. Solution...
2 comments
Read more

What is a Torbar? – Averaging Pitot Tubes

 The Torbar is employed for flow measurement of liquids, gases, or steam in circular, square, or rectangular section ducts for large flow rates. The Torbar is an insertion type multi-port self-averaging primary sensor for flow measurement. Torbar TORBAR is a set of Pitot tubes mounted on a bar across the pipeline with no moving parts. An averaging Pitot tube is a technology, while TORBAR is a manufacturing brand name. There are several brands available in the market with VERABAR, ANNUBAR, etc. Averaging Pitot Tube Principle Purpose Averaging Pitot tube can be employed when the average velocity of the flow profile, rather than the velocity in a specific point in the cross-section is desired. Averaging Pitot Tubes Principle It measures the differential pressure between the static pressure tap and the tap of full pressure of a stream. Thus such magnitude of differential pressure is directly proportional to the square of the flow rate. Working The TORBAR is designed in such a way that ...
7 comments
Read more