3 Point Position Dial This nitrogen purge tool includes a quick and simple 3 point position dial for rapid switching between purging, brazing, and shut off settings. This ensures the correct nitrogen rate for each setting and helps simplify operation. 1/4 Inch Port and Quick Connection The tool quickly attaches to the outlet of a standard nitrogen pressure regulator. When the purge tool is set to off, connect a standard 1/4 inch refrigerating fluid hose to complete flushing and brazing within seconds. This provides a straightforward, compatible connection for common equipment. Product Usage Facilitates smooth delivery of nitrogen into pipes during purging and brazing processes. It helps remove refrigerants and debris, prevents oxidation and equipment failure, and supports maintaining pipeline cleanliness. Stable and Accurate Performance Inlet pressure is 50 psi and maximum pressure is 200 psi. The tool provides accurate control over nitrogen flow, delivering stable purging and brazing results while minimizing gas wastage. Use scenarios HVAC or refrigeration installation and service: purge and braze nitrogen lines to prevent oxidation and ensure clean joints. Industrial piping maintenance: flush piping runs to remove debris before welding or brazing. work on gas or refrigerant lines: use controlled nitrogen delivery to protect components during disassembly and reassembly.