CL38 Commercial Pressure Regulator

Brand: Itron

The CL38 is a constant pressure loaded regulator for use where closer PSIG-to-PSIG regulation is desired than can be obtained from conventional spring-loaded regulators.  

Since this regulator requires an inlet pressure supply of only 1/2 PSIG above outlet pressure, this unit can be used where demand type loading will not meet the low pressure differential.
Features
  • Constant loaded pilot design (“fixed-factor” pressure control) 
  • Interchangeable brass orifice 
  • Internal lower diaphragm chamber pressure flow control 
  • 133 in²  of diaphragm area 
  • Spring-loaded pilot internal relief valve assembly
  • Field interchangeable pilot adjustment spring 
  • Controlled internal bleed hole eliminates pulsation 
  • Wide range of valve body sizes including NPT and Flange connections
  • 16 different available assembly positions
  • Capacities from 1,500 CFH to 20,000 CFH available
Benefits
  • Economical 
  • Light weight 
  • Accurate pressure control for “fixedfactor” measurement applications 
  • No special start-up procedures required 
  • Internal Monitor version eliminates the need for external relief valves or separate monitoring devices
  • No special tools required for outlet pressure adjustment 
  • No minimum differential pressure requirement

Specifications

Brand

Valve Body Type

  • NPT
  • Flanged

Orifice Size

  • 1-3/8”
  • 1”
  • 3/4”
  • 5/8”
  • 1/2”
  • 3/8”
  • 1-1/4”

Outlet Pressure Range

  • 5” w.c. to 30 psig

Operating Temperature

  • -20° to 150° F

Pilot Vent Size

  • 3/4” NPT

Body Material

  • Cast Iron

Orifice

  • Brass (ASTM B-16, Alloy 360)

Valve Seat

  • Buna-N

Valve Stem

  • Plated Steel (AISI 1215)

Diaphragm Material

  • Buna-N and Nylon Reinforcing Fabric

Appropriate for commercial and industrial applications where very accurate pressure control is required such as “fi xed-factor” metering applications or large boiler and furnace applications.
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