The R & RS series’ double diaphragm balanced valve design makes it possible to maintain steady outlet pressure control with widely varying inlet pressures. The regulator is physically small yet has exceptional capacity characteristics. R & RS series regulators are intended for use with both main burner and pilot load applications. They are ideally suited for use with infrared heaters and pilot lines on large industrial heaters and boilers.

Specifications:

• Pipe Sizes: 3/8” to 1” threaded connections with NPT or ISO7-1 threads.
• Housing Material: R400(S), R500(S), R600(S): aluminum.
• Mounting: Suitable for multi-positional mounting. If ball check vent limiting device is installed, mount  in an upright position only.
  NOTE: All Maxitrol gas pressure regulators should be installed and operated in accordance with Maxitrol Safety Warning Instructions.

• Certifications: R400(S), R500(S), R600(S): ANSI Z21.18/CSA 6.3 Gas Appliance Pressure Regulators.
• Gas Types: Suitable for natural, manufactured, mixed gases, liquefied petroleum gases, and LP gas-air mixtures.
• Maximum Inlet Pressure: CSA Certified: R400(S), R500(S), R600(S): 1/2 psi (3.4 kPa) Maxitrol Tested: R400, R500, R600: 1 psi (6.9 kPa); R400S, R500S, R600S: 5 psi (34.5 kPa)
• Emergency Exposure Limits: R400, R500, R600: 2 psi (13.8 kPa) R400S, R500S, R600S: 12.5 psi (86.2)
• Ambient Temperature Ranges: R400(S), R500(S), R600(S): -40° to 205°F (-40° to 96°C) Suitable for pilot flow applications. (Circle P) (0.15 CFH NG), None (1.5 CFH NG).