Rego First Stage Regulator

Rego first-stage regulators are designed to reduce high tank pressure into a stable intermediate pressure, typically 5–10 PSIG, for use in two-stage propane systems. Built for both residential and commercial setups, they provide dependable performance, high flow capacity, and robust safety features.

Key Features

Full-Size Models (LV4403 Series)

• Adjustable outlet pressure range from 5–10 PSIG.

• Large ¾″ FNPT bonnet vent positioned over the outlet to resist freeze-ups and blockages.

• Built-in relief valve for overpressure protection.

• Straight-line valve closure and reinforced diaphragm ensure precise control and long service life.

• Replaceable valve orifice and seat disc for easy maintenance.

• 1/8″ FNPT pressure tap for quick system checks.

• Bright red finish for corrosion resistance and visibility.

Compact Models (LV3403TR Series)

• Factory preset to approximately 10 PSIG outlet pressure.

• Flow capacity up to 1,500,000 BTU/h.

• Space-saving design, attaches directly to service valves with POL adapter or pigtail.

• ⅜″ FNPT bonnet vent allows piping away in underground setups.

• Wide orifice minimizes freeze-ups from moisture in propane vapour.

• Built-in relief valve and travel stop meet NFPA 58 safety requirements.

• Molded diaphragm with O-ring seal for durability and leak protection.

• Downstream 1/8″ FNPT pressure tap for pressure verification.

• Bright red finish for durability and easy identification.

Comparison Table

Best Applications

• LV3403TR Compact: Ideal for residential propane tanks or tight spaces where high flow is needed in a smaller design.

• LV4403 Full-Size: Suitable for large systems such as bulk tanks, industrial burners, or multi-cylinder installations.