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Pressure Reducing Valves

Features | Overview

The Model B Pressure Regulating Valve is a self-operated spring-loaded pressure regulating valve.  This valve is installed to sense downstream pressure to maintain a constant supply pressure to the fuel metering valves.  


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  • Features
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  • Self Operated Spring Loaded Pressure Regulating Valve
  • Cast Iron Body
  • Viton Diaphragm Rated For 300° F Maximum Temperature
  • Will not let pressure bleed through when the system is idle. 
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  • Overview
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The Model B Pressure Regulating Valve is a self-operated spring-loaded pressure regulating valve typically installed in the supply line to boiler fuel metering valves.

The Model B is a ½" or 1" NPT, 250 lb. cast iron body, stainless steel trim and disk.  The valve has a Viton diaphragm rated for 300° F maximum temperature.  

The Model B is designed for pressure reduction and closes tight for dead end service.  In times when the boiler is not operating, pressure will not bleed through.  Installation of a shutoff valve prior to this valve, would still be good design practice.  

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