LOOPHILL VN-500 Nitrogen Purging Regulator – 4-Position Flow Control up to 500 PSI

Overview

The LOOPHILL VN-500 Nitrogen Purging Regulator is built for precise, flexible control in professional settings. Its compact, all-brass construction blends durability with a readable flow meter, letting you tailor nitrogen delivery from 0 to 500 PSI. The four working modes—TST, PRG, BRZ, and OFF—offer ready‑to‑use options for common purging, leak testing, and welding protection tasks without the guesswork.

Key capabilities at a glance

• 4 working modes (TST, PRG, BRZ, OFF) for adaptable purging and testing workflows
• Pressure range from 0 to 500 PSI with immediate, intuitive feedback
• Universal CGA-580 tank connection plus dual 1/4" NPT outlets for versatile plumbing
• Integrated flow meter for clear, at-a-glance readings
• Forged brass body provides corrosion resistance and stability under high pressure
• Hybrid design combines regulator and flow meter in a compact, easy-to-use unit

Why this regulator stands out

Designed for reliability in demanding environments, the VN-500 prioritizes consistent performance, precise control, and straightforward operation. The brass construction is not only durable but also suited to high-pressure nitrogen purging processes. The 4-mode control lets technicians switch between testing, purging, and brazing protection as needs change, without swapping components.

Real-world uses

• Leak detection in HVAC and piping systems (test mode) to identify small imperfections
• Pipeline purging during maintenance or installation to minimize contamination
• Welding protection during brazing or welding tasks to guard sensitive joints
• Industrial gas control in manufacturing environments requiring stable pressure and flow

Durability and design details

The VN-500’s forged brass body delivers robust performance, with corrosion resistance and strong pressure handling. Its dual 1/4" NPT outlets simplify installations, and the integrated flow meter provides timely, accurate feedback for better control. This compact, two-in-one design is intended to stay reliable during repeated purging cycles and across different application modes.

Tips for getting the most from your VN-500

• Attach to a compatible nitrogen tank via CGA-580 for a secure seal
• Use the TST mode for initial checks, PRG for purging, and BRZ for welding protection as needed
• Regularly inspect connections and the flow meter to maintain reading accuracy