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B531 Commercial Regulator

Brand: Itron

The Series B531 is a spring-loaded regulator equipped with a valve body that is effectively two regulators in parallel. This design allows for nearly double the capacity that can be achieved with a single 6 diaphragm regulator. 

The B531 design is symmetric about that downstream piping so all parts are identical in both diaphragm cases.
Features
  • Interchangeable brass orifice 
  • Combined 54 in² of diaphragm area
  • Twin Spring-loaded internal relief valve assemblies
  • Field interchangeable adjustment springs 
  • No special adjustment tools required
  • Controlled size breather orifice eliminates pulsation and provides normal actuation at low flows
  • Wide range of valve body sizes 
Benefits
  • Eliminates parallel regulator piping installations
  • Light weight
  • Fast response protects equipment from shock damage
  • Field inspection of the internal monitor and internal relief valves without customer shut-off or by-pass
  • Unmatched overpressure protectin with internal monitor plus internal relief options

Specifications

Brand

Outlet Pressure Range

  • 4.5” to 15” w.c.
  • 0.75 to 2.5 psig

Orifice Size

  • 1/2”
  • 3/8”
  • 5/16” IM
  • 5/16”
  • 1/4” IM
  • 1/4”
  • 1/8” IM
  • 1/8”
  • 3/16”
  • 3/16” IM

Operating Temperature

  • -20° to 150° F

Valve Seat

  • Silicone, Buna-N

Valve Stem

  • Anodized Aluminum

Body Material

  • Cast Iron

Orifice

  • Brass, Aluminum

Diaphragm Material

  • Buna-N and Nylon Reinforcing Fabric
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