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Solenoid valve coil symbol description

Solenoid valve coils are widely used in chemical production. Generally, they are used to be installed on the pneumatic circuit of a pneumatic performance mechanism to control the opening and closing of the gas circuit to control the switching of the valve. Today, Xiaobian will introduce us to the detailed description of the solenoid valve symbol.
First, the solenoid valve symbol description

From top to bottom, from left to right, respectively
Direct-acting type: two-way two-way, two three-way general, two three general off.
Pilot: Two-way two-way, two three-way general, two three general break.
Two five-way single electronic control, two five-way dual electronic control.
Three five-way middle seal, three five-way pass, three five-way medium pressure.
Second, the electromagnetic valve symbol detailed

The solenoid valve symbol refers to the schematic diagram of the function of the solenoid valve. It is generally used in the pneumatic system planning and product identification for the pneumatic system planner and the solenoid valve operator to understand the product function.

In the planning process, it is often necessary to look at the gas map. Various solenoid valve avatars appear on the drawings for their respective pneumatic symbols. This marking method is the solenoid valve symbol.
The meaning of graphical symbols is generally as follows:

(1) The working position of the valve is indicated by a box, and there are several boxes indicating a few "bits";
(2) The arrow in the box indicates that the oil circuit is in the on condition, but the direction of the arrow does not necessarily indicate the direction of the flow;
(3) The symbol “┻” or “┳” in the box indicates that the passage is unreachable;
(4) If there are several interfaces externally connected to the box, it will indicate several "passes";

(5) Generally, the oil inlet/air inlet of the valve and system oil supply path or gas path is marked with the letter p; the oil return/return port of the valve and the system return oil/gas path is used t (sometimes o) ); the port/port connected to the valve and the fulfillment element are indicated by a, b, etc. Sometimes the leaking port is marked with a l on the graphic symbol;
(6) The reversing valve has two or more working orientations, one of which is the normal position, that is, the position of the position when the spool is not subjected to the operating force. The median in the graphical symbol is the normal position of the three-position valve. The two-position valve with spring return is in the normal position with the passage in the box close to the spring. When manufacturing the system diagram, the oil/gas path should generally be connected to the normal position of the reversing valve.

Solenoid valve type comparison table

Domestic solenoid valve series code: ZC
1. Explosion-proof type "F" is not explosion-proof and is not marked
2, normally closed is not marked; often open with "K"; self-adhered to "Z"
3. “0” for direct-acting type; “3” for step-by-step direct operation; “5” for pilot type; “Q” for rapid and urgent interception
4. "1" for internal thread; "2" for external thread; "8" for flange; "6" for welding; "9" for card sleeve
5, the nominal diameter mm
6, vacuum with "Y" medium and low pressure 0 ~ 6.4Mpa with "M" high pressure 6.5 ~ 99Mpa with "H" ultra high pressure 100Mpa or more with "G"
7. "C" for "C" stainless steel for cast steel and "S" for "P" plastic for cast steel
8, with signal anti-use "X" with manual "S" with non-return "D"
Two-position three-way solenoid valve marked:
One in and one out: ZCF3/3+ other explosion-proof markings and codes
One in and two out: ZCF3/31+ other explosion-proof markings and codes
Two in and one out: ZCF3/32+ other explosion-proof markings and codes
Extra tips:
1. Solenoid valve level equipment, the coil is the best, if vertical equipment is required, when ordering
2, there are impurities in the medium, please filter the network of equipment 30 ~ 100 mesh / inch
3, solenoid valve, if the outlet pressure is greater than the inlet pressure, the valve will anti-guide navigation, at this moment should be in the exit device check valve
4, the company can specifically plan for you special needs solenoid valve series products

Example of solenoid valve type preparation:
Stainless steel internal thread type high pressure solenoid valve type: (ZC51-15HBX) is not explosion-proof, explosion-proof "F" marked, no explosion-proof is not marked
ZC51-1HB, ZC51-2HB, ZC51-3HB, ZC51-4HB, ZC51-5HB, ZC51-6HB, ZC51-8HB, ZC51-10HB, ZC51-15HB, ZC51-20HB, ZC51-25HB, ZC51-32HB, ZC51- 40HB, ZC51-50HB
Stainless steel internal thread high pressure explosion-proof solenoid valve type preparation:
ZCF51-1HB, ZCF51-2HB, ZCF51-3HB, ZCF51-4HB, ZCF51-5HB, ZCF51-6HB, ZCF51-8HB, ZCF51-10HB, ZCF51-15HB, ZCF51-20HB, ZCF51-25HB, ZCF51-32HB, ZCF51- 40HB, ZCF51-50HB
Stainless steel flange type medium and high pressure solenoid valve type: (ZC58-15HB) is not explosion-proof, explosion-proof "F" is marked, no explosion-proof is not marked
ZC58-15HB, ZC58-20HB, ZC58-25HB, ZC58-32HB, ZC58-40HB, ZC58-50HB, ZC58-65HB, ZC58-80HB, ZC58-100HB, ZC58-125HB, ZC58-150HB, ZC58-200HB, ZC58- 250HB, ZC58-300HB
Stainless steel flange type high pressure explosion-proof solenoid valve type preparation:
ZCF58-15HB, ZCF58-20HB, ZCF58-25HB, ZCF58-32HB, ZCF58-40HB, ZCF58-50HB, ZCF58-65HB, ZCF58-80HB, ZCF58-100HB, ZCF58-125HB, ZCF58-150HB, ZCF58-200HB, ZCF58- 250HB, ZCF58-300HB
Stainless steel internal thread explosion-proof signal reverberation function solenoid valve type preparation: (ZC51-15HBX) is not explosion-proof, explosion-proof "F" marked, no explosion-proof is not marked
ZCF51-1HBX, ZCF51-2HBX, ZCF51-3HBX, ZCF51-4HBX, ZCF51-5HBX, ZCF51-6HBX, ZCF51-8HBX, ZCF51-10HBX, ZCF51-15HBX, ZCF51-20HBX, ZCF51-25HBX, ZCF51-32HBX, ZCF51- 40HBX, ZCF51-50HBX
Stainless steel flange type explosion-proof signal reverberation function solenoid valve type preparation:
ZCF58-15HBX, ZCF31-20HBX, ZCF31-25HBX, ZCF31-32HBX, ZCF31-40HBX, ZCF31-50HBX, ZCF58-65HBX, ZCF31-80HBX, ZCF31-100HBX, ZCF31-125HBX, ZCF31-150HBX, ZCF31-200HBX, ZCF58- 250HBX, ZCF31-300HBX

International solenoid valve series code: TM
1. Explosion-proof type "F" is not explosion-proof and is not marked
2, normally closed is not marked; often open with "K"; self-adhered to "Z"
3. “0” for direct-acting type; “3” for step-by-step direct operation; “5” for pilot type; “Q” for rapid and urgent interception
4. "1" for internal thread; "2" for external thread; "8" for flange; "6" for welding; "9" for card sleeve
5, the nominal diameter mm
6, vacuum with "Y" medium and low pressure 0 ~ 6.4Mpa with "M" high pressure 6.5 ~ 99Mpa with "H" ultra high pressure 100Mpa or more with "G"
7. "C" for "C" stainless steel for cast steel and "S" for "P" plastic for cast steel
8, with signal reverberation function with "X" with manual function with "S" with non-return function "D"
Two-position three-way solenoid valve marked:
One in and one out: TMF3/3+ for explosion protection and other indications and codes
One in and two out: TMF3/31+ for explosion protection and other indications and codes
Two in and one out: Explosion proof TMF3/32+ other indications and codes

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