1️⃣ Understand What a Gas Solenoid Valve Does

A gas solenoid valve is an electrically controlled safety shut-off valve.

• ✅ Power ON → Valve opens → Gas flows

• ❌ Power OFF → Valve closes → Gas stops

It is mainly used for:

• Burner gas control

• Emergency shut-off

• Safety interlock systems

Most industrial gas systems use normally closed (NC) valves for safety.

2️⃣ Before Installation (Very Important)

✔ Check gas type (Natural gas, LPG, biogas, etc.)
✔ Check pressure rating (Max inlet pressure)
✔ Check voltage (24V, 110V, 220V AC/DC)
✔ Check flow direction arrow on valve body
✔ Confirm explosion-proof requirement (if hazardous area)

3️⃣ Installation Steps

Step 1: Shut Off Gas Supply

Always close upstream manual valve before installation.

Step 2: Install in Correct Direction

There is a flow arrow on the valve body.
Install according to gas flow direction.

Step 3: Install Horizontally (Recommended)

• Coil should be vertical (upwards)

• Avoid upside-down installation

Step 4: Add Gas Filter Before Valve

This is very important.
Dust and rust can damage the internal seal.

Step 5: Leak Test

After installation:

• Open gas slowly

• Use soap water or gas detector

• Check all connections

4️⃣ Electrical Connection

⚠ Must match rated voltage exactly.

Typical wiring:

• Connect power line to coil terminals

• Use proper grounding

• Connect to burner controller or safety control panel

In burner systems:
Flame controller → sends signal → energizes solenoid → gas flows.

5️⃣ Operation Process (In Burner System)

Example sequence:

1. System power ON

2. Fan purge starts

3. Air pressure switch confirmed

4. Ignition transformer ON

5. Solenoid valve energized

6. Gas flows

7. Flame detected

8. Burner running normally

If flame failure:

• Controller cuts power

• Solenoid valve closes immediately

• Gas stops

6️⃣ Maintenance Tips

Since you ask often about keeping equipment working well, here are key points:

✔ Install gas filter and clean regularly
✔ Check coil temperature (not overheating)
✔ Check wiring tightness
✔ Test open/close function regularly
✔ Listen for abnormal sound (buzzing or delay)
✔ Replace coil if burned

7️⃣ Common Problems

8️⃣ Safety Reminder

• Always use double solenoid valves in industrial burners (safety standard)

• Install pressure switch and gas regulator before valve

• Follow local gas safety regulations

• Phone: 86 185 6630 3837
  WhatsApp: 86 185 66303837
  Email: ekeilairn@gmail.com
  www.http://ekgas.com