REGO™ First Stage Regulator, 2500MJ/h at 35kPa (5PSI), 1/2″ NPT inlet & outlet.


The REGO™ LV4403SR series 1st stage regulators are designed to reduce full bottle pressure to an intermediate pressure of 35kPa(5PSI).

This regulator is guaranteed to pass 2500MJ/h at 35kPa.

     Comes with:

  • REGO 1st stage regulator, guaranteed 2500MJ/h @ 35kPa  [LV4403SR4]
  • Bracket mounting bolts x2

     Sold Separately:


Ideal for commercial, industrial and larger scale domestic applications, this regulator is designed for two stage regulation systems, often implemented when bulk tank or cylinders are a long way from the appliance or buildings where appliances are installed.

These regulators are the first of a two stage system, they reduce full bottle pressure down to an intermediate pressure of 35kPa, suitable for 2nd stage regulators.

Set at 35kPa this regulator is designed for installations requiring less than 2500MJ/h.

Some larger industrial appliances may require such pressures (35kPa) for operation refer to appliance installation instructions for relative pressure and flow rating information.

Special Features:

This regulator has been tested for Australian conditions and has been rated to deliver a guaranteed 2500MJ/h at 35kpa (7PSI).

  • This regulator has 1/2″female NPT inlet & outlet thread size.
  • The large diaphragm makes it extra sensitive to pressure changes
  • Straight line valve closure saves wear on seat disc.
  • Extra long lever arm creates uniform delivery pressure.
  • Unique bonnet vent profile minimises freezing over of vents when properly installed, also reduces contamination by foreign material.


  • It incorporates an integral relief valve for added system protection.
  • The large vent helps prevent blockage
  • Vent outlet is tapped to ¾” female NPT for vent piping.


  • Pre-tapped & plugged test point outlet 1/8” female NPT
  • Plug can be removed with a 3/16” hex (Allen) wrench.



Images are representative of the type of regulator described and is not necessarily the actual part.

SKU: LV4403SR4 Category:
Weight1.5 kg
Dimensions22 × 13 × 13 cm
Maximum Flow Rate

2500 MJ/h

Outlet Thread

1/2" NPT

Inlet Thread

1/2" NPT


RegO Products

Gameco stocks a complete range of RegO LP Gas and Anhydrous Ammonia Equipment. Our four fully stocked warehouses enable quick supply to all areas of Australia and New Zealand, and with direct factory support, there is nobody better placed to assist with you with all your RegO needs.Click Here for the full RegO Catalogue. Please don’t hesitate to contact us for assistance.Find here the following RegO product information:A) Rego Regulators and AccessoriesB) Rego Cylinder and Service ValvesC) Rego Multivalve® AssembliesD) Rego Pressure Relief Valves and Relief Valve ManifoldsE) Rego Globe and Angle ValvesF) Rego Excess Flow, Check, Filler and Vapor Equalizing ValvesG) Rego Internal Valves and AccessoriesH) Rego Adapters, Connectors and FittingsJ) Rego Miscellaneous Equipment (Including Rotogages and ESVs)Please don’t hesitate to contact us for assistance.

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