(918) 258-7035 (800) 324-7035 24/7 Emergency
Quick Quote Total Valve Live

6400 Series

6400 Series - Steam Safety Valves
General Specifications:
Size 1” x 2” to 4” x 6”
Orifice Areas D (0.150 sq2) to P Orifice (7.087 sq2)
Set Pressure Ranges 15 to 1500 psig (1.0 to 103barg)
Temperature Ranges -20 to 1000°F (-29 to 538°C)
Flange Classes 150# – 1500#
Materials of Construction Carbon Steel
Stainless Steel
Chrome-Moly
  • Flanged Spring Loaded Boiler Safety Valve
  • Available in closed bonnet or exposed spring versions
  • Hardened conical disc for extended seat life
  • Full nozzle design
  • ASME/NB Section I and VIII for Steam
  • CSA B51 (Canada CRN)
  • ISO 9001- 2008
  • CSQL (China)
  • GOST-R (Russian)
  • US Coast Guard
  • Nuclear – 10 CRF 50 Appendix B, NCA-4000, NQA-1 N285.0
  • First Point Assessment Limited
Need Assistance? Contact Us