Introduction:
The R312H Series First-Stage regulators are designed for use as the first regulator of a Two-Stage regulation system on domestic applications. With an overall length of only 4.13-inches (105 mm), they fit easily under the tank dome.
The unit is nonadjustable and virtually tamper proof. Outlet pressure remains at the factory nominal setting of 10 psig (0,69 bar). These units contain a relief valve and a large vent. The spring case is color-coded red to easily identify the unit as a First-Stage regulator.

Features:

• Compact
• Overpressure Protection
• Easy Identification
• Tamper-Resistant
• Molded Diaphragm
• UL Listed

Maximum Allowable Inlet Pressure: 250 psig (17,2 bar)
Outlet Pressure Setting: See Table 1
Temperature Capabilities: -20° to 150°F (-29° to 66°C)
Body Sizes and End Connection Styles: See Table 1
Additional Technical Data: For more technical information contact your Fisher Distributor or refer to LP-31 Equipment Buyer’s Guide.

(dimensions)