HDGS 2015 / 2020 / 2025 / 2040 / 2050 / 2050F / 2065F / 2080F / 2100F

DIMENSION & TECHNICAL SPECIFICATION

- The Slow Opening and Fast Closing Type -

* Starting / Working

 GENERAL SPECIFICATION 

MATERIALS

​■ TECHNICAL DESCRIPTION

- HDGS Series solenoid valves(the Slow Opening and Fast Closing Type) open slowly 

  (≦10 seconds) as the power held within one second, 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 kind of valve is normally installed as safety and regulating device in gas trains, for industrial

  applications and gas firing systems.

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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 to save electricity.

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

                     ​it can also extend the lifetime of the product.

           · Signal lamps are on the front terminal box. If the starting power is applied the red lamp is turn on.

                     And red lamp is reduced to 40% of operating power is changed to green after 20seconds.

           · When an error occurs in the operation of the solenoid coils,

                     they are designed so that the red warning light turns on and the power turns off. 

■  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.

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■ 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.

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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.