Double Block & Bleed Valves

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PBM's Double Block & Bleed valves provide true double positive isolation. This configuration provides the best technology for the most severe isolation services where double block and bleed is required. These valves are designed to ASME B16.34 and ideal for major oil refineries where safety and reliability are critical. 




  • Full or Reduced Port
  • Quarter Turn Operation
  • API-607 Fire Rated
  • Optional Extended Handle with lock out
  • True Double Positive Isolation
  • Locking Handle Standard
  • Welded or bolted body
  • API-622 Low-E Stem Packing Standard
  • SIL-3 Capable per IEC 61508
  • Custom configurations – consult PBM


Low-E Packing Tested to the API 622 Standard (rev. 2):

  • Average stem packing leakage 10 ppmv for the duration of the API 622 test (100 ppm allowable)
  • Stem packing is suitable for service at temperatures of -400˚ to 850˚F (-240˚ to 450˚C)
  • API 607 Rev. 4 fire tested
  • ASME Class 1500 Weld Design standard


PBM (Pittsburgh Brass Manufacturing) is a  company over 100 years old that began as a non-ferrous foundry in 1899 along the Monongahela River in Pittsburgh.



  • Address: 1070 Sandy Hill Road,
       Irwin, PA 15642
  • Phone: 724-863-0550 / 800-967-4PBM
  • Email:








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