Type HSR direct-operated, spring-loaded pressure reducing regulators provide control in residential, commercial, and industrial applications for natural, manufactured, or liquefied petroleum gases. Internal relief across the diaphragm helps minimize overpressure. Any outlet pressure over the start-to-discharge point of the nonadjustable relief valve spring moves the diaphragm off the relief valve seat, allowing excess pressure to vent.

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Features:

• Wide Variety of Body Sizes and End Connections
• Fixed Factor / Pressure Factor Measurement (PFM) Accuracy Capabilities
• Field Convertible from Internal Sensing to External Sensing for Wide-Open Monitor Construction
• Available in Gray Cast Iron, Ductile Iron, and Steel Body Materials
• Only Standard Tools Required for Pressure Adjustment and Orifice Removal
• Easy to Maintain

Available Model:

• Fisher HSRModel with Internal Relief
• Cast Iron Body on all units
• Straight-Through Valve Body Construction on all units

Also See:

• Fisher HSR Main Springs
• Fisher HSR Model Orifice
• Fisher HSR Valve Seat – Nitrile

Resources:

• HSR Series Pressure Reducing Regulators Bulletin
  
• HSR Series Pressure Reducing Regulators Instruction Manual