Nitrogen regulator-flowmeter with wireless remote control (>200 m range), designed for brazing operations on refrigeration and HVAC systems.
The PRG-150R is a remote-controlled nitrogen regulator with integrated flowmeter, developed for nitrogen brazing in HVAC and refrigeration systems.
Its wireless remote (range >200 m) enables a single technician to perform brazing operations while remotely controlling nitrogen flow, eliminating unnecessary movement.
The adjustable flow (0–30 L/min) ensures optimized gas usage and prevents waste. Delivered with a durable case, power adapter, and 9 V-powered remote.
One technician only: long-range remote control
Minimized nitrogen loss: precise flow control
Quick and easy jobsite deployment
Standard fittings for compatibility with HVAC systems
European manufacturing and French quality assurance
Built to last: stainless steel housing and durable components
• Inlet pressure: 300 bar
• Outlet pressure (preset): 3.5 bar
• Flow rate: 0 to 30 L/min
• Max solenoid valve pressure: 10 bar
• Inlet fitting: Type C male swivel nut (nitrogen bottle)
• Outlet fitting: 1/4″ SAE male
• Remote control: range >200 m – 9 V battery included
• Power supply: 220 V
• Protection: stainless steel shield
• Included accessories: transport case, remote, power supply, battery
• Dimensions: 240 × 210 × 90 mm
• Weight: 1.9 kg
• Made in Europe – Assembled and tested in France
The PRG-150R is a flowmeter used to inert refrigerant circuits during brazing operations by injecting a continuous stream of nitrogen into the piping.
The purpose is to prevent the formation of flux residues (calamine) during brazing. Indeed, oxides (calamine) can detach and circulate in the refrigerant, which may:
Calamine can also compromise the strength or tightness of the braze, leading to leaks. Finally, these oxides can disturb the chemistry of the refrigerant and degrade the oil in the circuit.
When brazing under nitrogen, the cylinder is usually placed near the outdoor unit. In the case of commercial sites, for example, the indoor units may be located far from the outdoor unit, sometimes across several floors.
In such cases, manually closing the cylinder between brazing operations would be complicated, leading to significant and costly nitrogen overconsumption.
Thanks to the remote control and solenoid valve of the PRG-150R, it is possible to remotely open and close the nitrogen cylinder, thus saving both time and money.
No. Although the flow rate of the flowmeter is adjustable between 0 and 30 L/min, the output pressure is fixed at 3.5 bar.
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