2GFM Gas Flowmeter – Complete Guide for Thermal Spray & Flame Spray Systems
The 2GFM Gas Flowmeter is a precision instrument designed for regulating and measuring the flow of oxygen and fuel gas in thermal spray and flame spray coating systems. It plays a vital role in maintaining flame stability, coating quality, and safe operation in metallizing applications. At Balaji Udyog, we manufacture high-quality 2GFM Gas Flowmeters, thermal spray coating equipment, metallizing guns, and blasting accessories for industrial surface engineering applications.
5/29/20262 min read
What is a 2GFM Gas Flowmeter?
The 2GFM Gas Flowmeter is a dual-section precision gas flow measuring device used to control:
Oxygen flow
Fuel gas flow
for combustion flame spray guns used in thermal spray coating operations.
The flowmeter is installed between the gas supply and the flame spray gun to ensure accurate gas balance and stable flame conditions.
Main Applications of 2GFM Flowmeter
The 2GFM Gas Flowmeter is widely used in:
Thermal spray coating systems
Flame spray coating machines
Metallizing equipment
Wire flame spray guns
Zinc spray coating
Aluminum spray systems
Corrosion protection coating
Surface engineering industries
Key Features of 2GFM Gas Flowmeter
Dual Gas Flow Control
The flowmeter separately controls:
Oxygen gas
Fuel gas
Precision Flow Measurement
The floating ball inside the transparent tube accurately indicates gas flow rates.
Leak & Blockage Detection
The system quickly identifies:
Gas leakage
Hose blockage
Pressure changes
Flow imbalance
Built-In Safety System
The unit includes:
Check valves
Protective plastic shield
Separate gas channels
Anti-backflow protection
Easy Flow Adjustment
Needle valves allow precise flame control for high-quality coating applications.
How 2GFM Flowmeter Works
The 2GFM uses calibrated transparent tubes with floating balls to indicate gas flow.
As gas flow changes:
The float rises or falls
The scale indicates the flow rate
Operators adjust flow using control valves
Sliding pointer assemblies help operators maintain proper gas settings during spraying operations.
Importance in Thermal Spray Coating
Proper oxygen and fuel gas balance is critical for:
Stable spray flame
Better coating adhesion
Uniform coating thickness
Improved thermal efficiency
Reduced material wastage
Consistent coating quality
Even slight gas imbalance can affect coating performance significantly.
Safety Features of 2GFM Flowmeter
The BU 2GFM includes important industrial safety protections:
Check Valve System
Prevents oxygen from flowing back into fuel gas lines.
Protective Window Shield
Protects operators from accidental tube breakage.
Pressure Safety
Operation above 75 PSI may damage the flowmeter and must be avoided.
Leak Detection
Abnormally high readings usually indicate serious gas leakage.
Fuel Gases Supported
The 2GFM supports multiple fuel gases including:
Acetylene
Propane
Hydrogen
Natural Gas
Fuel Gas Correction Factors
Fuel GasMultiplierPropane1.233Acetylene1.000Hydrogen0.263Natural Gas0.806
Installation Guidelines
For proper installation:
Mount vertically
Keep meter tubes at eye level
Avoid hose strain
Use proper regulators
Ensure ventilation system is ON
Check all gas connections for leaks
The manual also recommends using soap solution for leak testing.
Operating Instructions
Basic operation includes:
Open gas head valve
Set pressure according to spray table
Open flowmeter valves
Light the spray gun
Adjust oxygen and fuel gas flow
Maintain balanced flame
Proper gas balance improves coating quality and spraying efficiency.
Maintenance Guidelines
The 2GFM requires minimal maintenance.
Recommended Maintenance
Clean flowmeter tubes
Inspect O-rings
Check floats
Replace damaged fittings
Maintain needle valves
Clean plastic shield carefully
The manual advises avoiding oily solvents and compressed air contamination in oxygen systems.
Common Problems & Troubleshooting
Low Gas Flow
Possible causes:
Dirty nozzle
Hose blockage
Collapsed hose stem
High Flow Reading
Usually indicates:
Serious gas leakage
Poor Coating Quality
Possible reasons:
Improper gas balance
Fouled nozzle jets
Incorrect pressure settings
Replacement Parts Available
Balaji Udyog supplies complete spare parts for 2GFM Flowmeters including:
Metering tubes
Oxygen floats
Fuel gas floats
Needle valves
O-rings
Check valves
Mounting blocks
Flowmeter frames
Valve knobs
Pointer assemblies
Industries Using 2GFM Flowmeters
Steel Plants
Surface restoration
Roll coating
Marine Industry
Anti-corrosion metallizing
Ship repair
Cement Industry
Wear-resistant coatings
Power Plants
Turbine protection
Boiler maintenance
Oil & Gas Sector
Pipeline coating
Corrosion protection
Why Choose Balaji Udyog?
Balaji Udyog Official Website manufactures:
2GFM Gas Flowmeters
3GFM Gas Flowmeters
Thermal spray coating machines
Flame spray guns
Arc spray systems
Metallizing equipment
Shot blasting machines
Blast rooms
Air compressors
Metallizing wires
We supply high-performance thermal spray solutions worldwide.
Contact Balaji Udyog
For:
2GFM Gas Flowmeter
Thermal spray equipment
Flame spray systems
Metallizing machines
Gas flowmeter spare parts
Contact us:
Website: www.balajiudyog.in
Email: sales@balajiudyog.in
Mobile: +91 9269288805
Balaji Udyog delivers reliable thermal spray coating and metallizing solutions for industries across the globe.
Address: Plot No. 75, Hastinapur Nagar, Sangria, Jodhpur, Rajasthan - 342013, India
Contact Us:- +91 9269288805, +91 9256488805
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