Spirax Sarco 55227
Spirax Sarco

Spirax Sarco 25P Pilot Operated Pressure Reducing Main Valve, 2 in, NPT, 250 psig Operating, 450 deg F Operating

Spirax Sarco 25P Pilot Operated Pressure Reducing Main Valve, 2 in, NPT, 250 psig Operating, 450 deg F Operating

Spirax-Sarco Inc

MPN: 55227
CBPN: 7532
Price: loading


Spirax Sarco Pressure Reducing Main Valve, Pilot Operated, 25P Series, 2 in Nominal Size, NPT, 250 psig Operating, 450 deg F Operating, Cast Iron Body, Media: Steam, 21-1/2 in H, Domestic

The 25P is a self-actuated pilot-operated pressure regulator. Downstream pressure is fed back through an external sensing line to the pressure pilot, which adjusts the opening of the main valve so as to maintain the set pressure. The main valve can close tight for ANSI/FCI 70-2 Class IV shut off when steam is not required.

To see a diagram and listing of available replacement parts for the Spirax Sarco 55227 main valve, visit our Spirax Sarco 55227 Main Valve Spare Parts page.


Warranty      :      2 Years
Series      :      25P
Type      :      Pilot Operated
Domestic/Import      :      Domestic
Media      :      Steam
Dimensions      :      21-1/2 in H
Pressure Rating      :      250 psig Operating
Temperature Rating      :      450 deg F Operating
Nominal Size      :      2 in
End Style      :      NPT
Body Material      :      Cast Iron
Industry Standards      :      ASTM A 126 Class B Body


  • Combination of pilots allow for different types of control in one regulator
  • Fatigue-tested diaphragm designed without a piston to prevent danger of sticking
  • Stainless steel internals for excellent durability and resistance to corrosion
  • Maximum allowable pressure: 250 psig at 0 to 450 deg F
  • Maximum allowable temperature: 450 deg F at 0 to 250 psig
  • Patented self scrubbing guide for long, trouble-free service
  • Accurate control of pressure with choice of color coded springs
  • Horizontal installation
  • 10.6 in inlet to outlet


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      1850 Gravers Road, #100
      Plymouth Meeting, PA 19462-2837
    • Phone: 610-272-2100
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