FLAME DETECTOR

AUTOMOBILE EMISSION GAS ANALYZER

SAMPLING SYSTEM



EXPLOSION PROOF GAS SOLENOID VALVE (Nc) SLOW OPEN AND FAST CLOSE

EXPLOSION PROOF GAS SOLENOID VALVE 
(Normally Closed, The Slow Opening and Fast Closing Type)

 

HDGS-EX 2015 / 2025 / 2040 / 2050

HDGS-EX 2050F / 2065F / 2080F / 2100F

  

 


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According to LVD 2006/95/EC

test required IEC 60730-1 (4th Edi.): 2010 / IEC 60730-2-15 (2th Edi.): 2008 

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Certification Criteria

        : Protective equipment compulsory safety certification Notice

           (Ministry of Employment and Labor Notice 2013-54)

Certification Number : 15-GA2BO-0771X / 0772X

Certification ratings : Ex d mb IIC T4 IP67

 

 

 

 

 

HDGS-EX 2015 / 2025

 

 

HDGS-EX 2040 / 2050

 
  


 

HDGS-EX 2065F / 2080F / 2100F

 

 

 

 

 

DIMENSION & TECHNICAL SPECIFICATION

- The Slow Opening and Fast Closing Type - 

 MODEL

 Overall  (mm)

Weight
(Kg)

Connection

Max. Operating Pressure
(mbar) 

Powwer Consumption

 A

B

 HDGS-EX 2015 (15A)

 88

110 

191

216

168 

 3.0

Rp 1/2" 

 360

20VA 

  HDGS-EX 2025 (25A)

 88

110

 191

 216

 168

 -

 3.0

 Rp 1"

 360

 30VA

  HDGS-EX 2040 (40A)

 140

 160

 266

 303

 207

 -

 8.0

 Rp 1" 1/2

 360

 190VA / 53VA*

  HDGS-EX 2050 (50A)

 140

 160

 281

 308

 207

 -

 8.0

 Rp 2"

 360

190VA / 53VA*

  HDGS-EX 2065F (65A)

 187

 270

 283

 373

 207

 4x18

 14.5

 DN 65

 200

 190VA / 53VA*

  HDGS-EX 2080F (80A)

 198

 313

 314

 411

 207

 8x18

 14.5

 DN 80

  200 

190VA / 53VA* 

  HDGS-EX 2100F (100A)

 198

 316

 341

 449

 207

 8x18

 16

   DN 100 

 200

 190VA / 53VA*

*Starting / Working

 

GENERAL SPECIFICATION

 Working gas

 LNG(Town gas), LPG, Air, Flue gas, Non-aggressive gas

 Working voltage  AC 220V

 Ambient temperature

 -15 ∼ 60 ℃

 Voltage tolerance

 -15 ~ 10 %

 Closing time

 < 1 second

 Opening time

 < 10 second

 Protection grade

 IP 67

6- Dust tight, No ingress of dust

7- Protection against the effect of “temporary” immersion between 15cm~1m.

 

 

MATERIALS

 Housing base

 Aluminium diecast, Brass

 Coil housing

 Iron

 Coil 

 enameled copper wires

 Disk sheet

 HNBR

 Core

 Pure Iron

 

 

 

 

■ TECHNICAL DESCRIPTION

HDGS Series solenoid valves(the Slow Opening and Fast Closing Type) open slowly as the power held within 

  10 seconds, normally closed.

If the power supply is shut off, the valve rapidly closes, interrupting the gas flow. (within 1 second)

This product is equipped with 'The Fast Opening  and Fast Closing Solenoid Valve’ downstream of the gas burner. 

   When power is applied, the valve is slowly opened(within 10 seconds) to adjust the heating 

   power of the burner, minimizing risk.

When the coil is powered, the valve opens slowly because of the hydraulic brake.

The rapid stroke may be adjusted using the regulating screw on the top to adjust the initial gas flow.

Main flow and opening time can be adjusted also.

If the power supply is shut off, the valve rapidly closes, interrupting the gas flow.

This is suitable for air or gas blocking and releasing controls, required in gas power burners, 

   atmospheric gas boilers, industrial kilns and other gas-consuming  appliances.

- This kind of valve is normally installed as safety and regulating device in gas trains, 

  for industrial applications and gas firing systems.

SAVING ENERGY

             : HDGS 2040 / 2050 / 2050F / 2065F / 2080F / 2100F

​              · The starting power is being supplied to the solenoid coil and after 20 seconds

                      it is down to 40% power to operate the solenoid coil, saving electricity.

​              · Because of maintaining the temperature of the coil below 55 ℃,

                      it can also extend the lifetime of the product.

​              · If problems occur in the operation of the solenoid coil, it must be immediately changed.

  ATTENTION WHEN ADJUSTING THE FLOW RATE

Because this product is sensitive, it operate normally when the voltage of the input voltage is greater 

   than 90% of rated voltage valve.

Turn off the solenoid valve and make sure the valve is closed.

When the screws are tightened loosely, there is risk of a gas leakage accident.

This product is shipped completely open at the factory.

Make sure to check the pressure and the flow direction of the normal gas before operating the unit.

■ HOW TO ADJUST THE FLOW RATE

1. Loosen by turning only the two pan head screws 2 wheels. 

   (You may have one individual round head screws, depending on the model.)

              Socket flat head screws is painted red sealing paint must never loose.

2. This product is reduces the flow rate of the valve by turning the hydraulic brake clockwise and 

    increases the flow rate of the valve turning counter-clockwise.

3. Tighten screws when the flow rate adjustment is complete.

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■ HOW TO ADJUST THE OPENING RATE

1. Loosen the screw on the cap and remove it.

2. 1st opening rate control (Use a flathead screwdriver)

       : Turning the screw in the ‘a’ direction (positive clock) makes it slower and

         turning the screw in the ‘b’ direction (counterclockwise) makes it faster 1st opening rate.

3. 2nd opening rate fine control (Use a flathead screwdriver)

         : If it fails to satisfy the opening rate adjustments, carry out fine-tuning when needed.

           Turning the screw in the ‘c’ direction (positive clock) make slower and

           turning the screw in the ‘d’ direction(counterclockwise) faster 2nd opening rate.

4. When the adjustment is complete, place the cap and tighten the screws. 

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■ ATTENTION

All installation/maintenance work must be carried out by skilled

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