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2015 Maxitrol Company. All Rights Reserved. DRAFT 09.18.2013 18 Pipe Sizes...................................... 38 to 1 threaded connections with NPT or ISO7-1 threads. Housing Material.......................... R400S R500S R600S 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 see GPR_MI_EN.ES or GPR_CSA_MI_EN.FR. Certifications...................................R400S R500S R600S ANSI Z21.18CSA 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 R400S R500S R600S 12 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 .........R400S R500S R600S -40 to 205F -40 to 96C Zero Governor Models....................Please refer to pages 32-37 for RZ model information. Minimum Regulation..................... Suitable for pilot flow applications. Circle P 0.15 CFH NG None 1.5 CFH NG. 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. RRS SERIES Balanced Valve Design R400 Specifications