Maxitrol RS Series Regulators Balanced Valve Design

  • CSA certified for 1/2 psi inlet pressure
  • Suitable for multi-positional mounting, and pilot flow applications
  • Ambient Temp Range: -40 Deg to 205 Deg F
  • Approvals: CSA, UR, CE
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Maxitrol RS Series Regulators have a double diaphragm balanced valve design. This makes it possible to maintain steady outlet pressure control with widely varying inlet pressures. The R/RS Series is intended for use with both main burner and pilot load applications.

In addition, pipe sizes ranges from 3/8” to 1” threaded connections with NPT or ISO7-1 threads.  In summary, Maxitrol R/RS model types are R400(S), R500(S) and R600(S).


Suitable for natural, manufactured, mixed gases and liquefied petroleum gases. In addition, also for LP gas-air mixtures, and gases of DIN EN 437 gas family 1, 2, and 3.

Sizing a regulator

Know the following:

  • Gas Type
  • Available Inlet Pressure
  • Desired Outlet Pressure
  • Will the regulator control main burner and pilot load OR main burner only?
  • Required minimum and maximum flow rate in cfh or m3/h or Btu/h
  • Pipe Size

Ask us to help you size the regulator, engineering or product support. In addition, we can assist in changing your Maxitrol spring, in the regulator, to match your application needs.

Regulator Accessories

Maxitrol R/RS Series Balance Valve Regulators

Maxitrol R400S, Gas Regulator, 1/2″ NPT
Maxitrol R500S-1/2, Gas Regulator, 1/2″ NPT
Maxitrol R500S, Gas Regulator, 3/4″ NPT
Maxitrol R600S, Gas Regulator, 1″ NPT

Technical Documentation

Download pdf files:

Maxitrol R/RS Regulators

Maxitrol Spring Selection Chart