Search

EDWARD 1441 GLOBE & 1443 ANGLE BLOW OFF VALVE

Edward 1441 Globe & 1443 Angle Blow Off Valve Standards Edward valves sold for blow-off service are designed and manufactured to comply with all Boiler Code criteria for valves used in these applications.

Standard Features
  • Size 1-1/2 and 2 bodies & bonnets are forged steel (A105)
  • Size 2-1/2 bodies and bonnets are cast steel (WCB)
  • Bolted bonnet, OS & Y
  • Straightway and angle design
  • Size 1-1/2 and 2 have hardened stainless steel disk
  • Size 2-1/2 has Stellite faced disk
  • Integral Stellite seat
  • Integral backseat
  • 13% chromium stainless steel stem
  • Asbestos-free spiral wound bonnet gasket
  • Impactor handle
Pressure Class 300 (PN 50)
  • FIG. NO. TYPE ENDS NPS (DN)
  • 1441 Globe Flanged 1-1/2 (40) thru 2-1/2 (65)
  • 1441Y Globe Socketweld 1-1/2 (40) & 2 (50)
  • 1441Y Globe Buttweld 2-1/2 (65)
  • 1443 Angle Flanged 1-1/2 (40) thru 2-1/2 (65)
  • 1443Y Angle Socketweld 1-1/2 (40) & 2 (50)
  • 1443Y Angle Buttweld 2-1/2 (65)
  • Pressure Ratings (B16.34 Standard Class)
  • Flanged or Welding Ends Class 300 Primary Service
  • Maximum Boiler Drum Pressure* 490 PSI (33.8 BAR)
  • Maximum Non-Shock 740 PSI @ 100°F (51.1 BAR)

*This adjusted pressure rating represents the maximum allowable working pressure for this

Specs & Brochures