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PDF icon Series 402-403 Regulating Valve Reference

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403 4" 150#

Item Series : 402/403 Series
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The 402 is a pilot-operated, piston-actuated, pressure regulator used for reducing pressure in STEAM systems. This regulator can be equipped with an optional internal sensing line which simplifies installation. The 403 Series has all stainless steel internals for high-pressure applications.
  • Body Material - Ductile Iron
  • Seat and Disc Material - Hardened 420 Stainless Steel (55 Rc)
  • Service - Steam, Air
  • Min. Inlet Pressure - 20 PSIG
Part Number 403 4" 150# Item Name 402/403 Series Flanged Pilot-Operated Pressure Regulating Valve
Maintenance Manual Series 402-403 Manual - [Series 402-403 IOM.pdf] Size [inches] 4
Connections 150# Flanged Body Material Ductile Iron
Seat And Disk Hardened 420 Stainless Steel (55Rc) Spring Type Double Spring
Min.Inlet Pressure [psig] 20 Max.Inlet Pressure [psig] 450
Max. Diff. Pressure [psi] 250 Pressure Rating At 650F [psig] 150
Weight [lbs.] 170 Service Steam|Air

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