Ekgas. Using a gas filter correctly is essential to protect downstream equipment such as gas regulators, solenoid valves, and burners, and to ensure stable and safe combustion. Here’s a clear, practical guide.

1. Understand the Purpose of a Gas Filter

A gas filter removes:

• Dust and rust particles from pipelines

• Welding slag and scale

• Oil or solid impurities in gas

This prevents:

• Regulator diaphragm damage

• Solenoid valve sticking

• Burner nozzle blockage and unstable flames

2. Correct Installation Steps

✅ Installation Position

• Install the gas filter upstream of:

  • Gas pressure regulators

  • Solenoid valves

  • Flow meters

  • Burners

• Typical order in a gas train:
  Gas source → Gas filter → Regulator → Safety valves → Burner

Flow Direction

• Always follow the arrow on the filter body

• Wrong direction will reduce filtration efficiency or damage the filter element

 Orientation

• Install with the filter cup facing downward

• This allows particles to collect and makes cleaning easier

Pipe Preparation

• Blow out or clean the pipeline before installation

• Avoid letting welding slag or debris enter the filter during mounting

3. Commissioning Before Use

Before putting the system into operation:

• Slowly open the gas supply valve

• Check all connections for gas leakage (use soap solution or gas detector)

• Ensure inlet and outlet pressures are within the filter’s rated limits

4. Daily Operation Tips

• Monitor pressure drop across the filter

• If downstream pressure decreases noticeably, the filter may be clogged

• Keep the filter dry and protected from mechanical impact

5. Cleaning and Maintenance

 Cleaning Frequency

• New systems: inspect after the first 1–2 weeks

• Normal operation: clean every 3–6 months

• Dirty gas conditions: clean more frequently

🛠 Cleaning Steps

1. Shut off the gas supply completely

2. Release residual pressure

3. Remove the filter cover or cup

4. Take out the filter screen

5. Clean with compressed air or a soft brush

6. Reinstall and ensure seals are intact

 Replace the filter element if it is damaged or heavily corroded.

6. Common Mistakes to Avoid

❌ Installing the filter backward
❌ Skipping regular cleaning
❌ Using a filter with incorrect pressure or flow rating
❌ Installing too close to high-temperature equipment