Emerson Fisher HSRL Series 1 in. FNPT Cast Iron Second Stage Regulator w/ 9 - 13 in. w.c. Spring , 2.6M BTU/HR

High-Capacity Propane Pressure Regulation for Commercial Systems

The Emerson Fisher HSRL Series (FIHSRLCFC) is a high-performance second-stage regulator engineered for light commercial applications requiring precise pressure control and substantial flow rates up to 2,600,000 BTU/hr. Built with a rugged cast iron body and a UV-protected closing cap, this UL-listed regulator is designed for a 20-year service life. It features a large aluminum orifice to prevent internal freeze-ups and a fabric-reinforced molded diaphragm that ensures increased accuracy and stability across a wide range of inlet pressures.

Designed specifically for the service professional, the HSRL series simplifies installation and field testing with integrated features:

• System Testing: Built-in inlet and outlet gauge taps allow for rapid pressure checks.
• Reliable Sealing: A four-bolt, O-ring sealed inlet eliminates potential leakage during setup.
• Contamination Control: An internal inlet screen keeps the disc clean to ensure a consistent, tight lock-up.
• Advanced Protection: High-capacity internal relief valves provide double-failure overpressure protection, while the 3/4 in. NPT drip lip vent ensures positive drainage when mounted correctly.

Features

• 20-Year Recommended Replacement Life
• Improved Regulation
• Overpressure Protection
• Corrosion Resistance
• Positive Drainage
• UL Listed

Specifications

• Capacity (Propane): 2,600,000 BTU/HR (29.3 SCMH)
• Inlet Connection: 1 in. FNPT
• Outlet Connection: 1 in. FNPT
• Material: Cast Iron
• Outlet Pressure Ranges: 9 to 13 in. w.c. (22 to 32 bar)
• Outlet Pressure Setting: 11 in. w.c. (27 bar)
• Maximum Inlet Pressure: 10 psig / 0,69 bar
• Emergency Inlet Pressure: 30 psig / 2,1 bar
• Temperature Capabilities: -20° to 160°F / -29° to 71°C
• Certifications: UL
• Color: Palm green, for easy identification
• Warranty: 10 Years

Warning

Warning: Failure to follow the instructions or to properly install and maintain this equipment could result in an explosion and/or fire causing property damage and personal injury or death. Fisher® equipment must be installed, operated and maintained in accordance with federal, state and local codes and Fisher instructions. The installation in most states must also comply with NFPA No. 54 and 58 standards. Only personnel trained in the proper procedures, codes, standards and regulations of the LP-Gas industry should install and service this equipment. Buyer agrees that responsibility for proper selection, installation, use and maintenance of any product remains solely with the purchaser and end-user. Buyer agrees to comply with the above warning and all instruction manuals, bulletins and installation guides associated with this product.

Downloads

Emerson Fisher HSRL Series Instruction Manual (PDF Download)

Emerson Fisher HSRL Series & R600 Instruction Manual (PDF Download)

Specification Sheet (PDF Download)

Reference Sheet (PDF Download)