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Dresser B34 Regulator Springs

Mfg #: R30571B34R
BOR #: 3404991
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The B34R is the internal relief version of the B34 series. This model features an adjustable loading ring for controlled boost at higher flows and a 1 inch internal relief valve.

  • 78 in2 of diaphragm area
  • Controlled size breather orifice eliminates pulsation and provides normal action at low flows
  • Field interchangeable adjustment spring
  • Interchangeable brass orifice
  • Spring-loaded internal relief valve assembly
  • Wide range of valve body sizes including NPT and flange connections
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