310A Pressure Reducing Regulator0 pages

Bulletin 71.2:310A
January 2009
Type 310A-32A Pressure Reducing Regulator and
Type 310A-32A-32A Working Monitor Regulator
Introduction
The Type 310A pilot-operated high-pressure regulator
(Figure 1) is used where high capacity and accurate
control are essential. This regulator includes one
Type 32A pilot assembly mounted on the main valve
for pressure reducing or wide-open monitoring
applications, or two Type 32A pilots mounted on the
main valve for working monitor applications.
Features
  •  Accurate Control—Molded pilot diaphragms t
  provide a narrow proportional band and tt
  registration of outlet pressure on the main
  diaphragm allows excellent control sensitivity.
  •  Tight Shutoff—Throttling-sleeve design with t
  Polytetrafluoroethylene (PTFE) seat in the body t
  ensures positive shutoff.
  •  High Capacity—Straight-through flow passage
  allows exceptionally high capacities and t
  stable operation.
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Figure 1.  Type 310A Regulator with Type 32A Pilot
  •  Fast Speed of Response—Designed to meet t
  stringent speed of response requirements for t
  turbine startup and fuel gas applications.
  •  Minimum Installation Space Required—Since t
  main valve design incorporates actuator spring, t
  less installation space is needed for the Type 310A 
  than for other regulators of comparable capacity.
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  •  Reduced Relief Requirements—Optional restricted t
  trim helps reduce relief valve size requirements; the
  regulator is easily converted to full capacity by tt
  changing the trim, if flow conditions increase.
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