Category Products

  • SKU: SG1215
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 1/2" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $756.00
Regular Price: $962.84

  • SKU: SG1216
  • 1 in stock
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 3/4" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $822.27
Regular Price: $1,047.23

  • SKU: SG1217
  • 3 in stock
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 1" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $925.87
Regular Price: $1,179.17

  • SKU: SG1220
  • 3 in stock
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 1-1/4" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $1,131.20
Regular Price: $1,440.68

  • SKU: SG1230
  • 2 in stock
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 1-1/4" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $1,395.34
Regular Price: $1,777.08

  • SKU: SG1240
  • 3 in stock
  • Ships within 2 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 2" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $1,798.54
Regular Price: $2,290.59

  • SKU: SG1250
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 2-1/2" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $2,528.40
Regular Price: $2,830.30

  • SKU: SG1255
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 3" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $2,927.40
Regular Price: $3,276.95

  • SKU: SG1260
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 4" NPT connection and a 250 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $4,383.12
Regular Price: $4,906.48

  • SKU: SG1275
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 2-1/2" flanged connection and a 300 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $2,700.60
Regular Price: $3,023.06

  • SKU: SG1280
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 3" flanged connection and a 300 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $3,148.32
Regular Price: $3,524.24

  • SKU: SG1285
  • Ships within 10 business days

Spirax-Sarco steam control valve (main valve only) for pressure and temperature, model 25, with a 4" flanged connection and a 300 psi maximum operating pressure for use in combination with a 25P pressure pilot, 25T temperature pilot, 25PT both, or other pilots that are air actuated, electric, or back-pressure. Order pilot separately dependent upon pressure range requirements.

Online Price: $4,944.24
Regular Price: $5,534.60

Category Information

Category Videos

Spirax-Sarco: 25PRV Animation

Spirax-Sarco: 25PRV Animation

This animation demonstrates the relationship between the spring compression, steam pressure, diaphragm chambers, and pilot/main valve positions under various conditions. While watching the movie, observe the pilot and main valve motions and spring compresses. Notice the steam pressure reduces from red to orange, green, violet, and blue.