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DBB/SBB INSTRUMENT 
Our Double block and bleed valve has been compactly designed 1-piece or a 2-piece body with 2 blocked(off)
valve and 1 bleed valve can replace the existing Double block and bleed system with 1 Double block and bleed
valve and it can reduce installation space and time.

Our Double block and bleed (DBB) valve is designed and manufactured in conformance with specification of API
6D and ASME B 16.34 and available in variety of size (1/2” through 12”), working pressure and configurations. They are available in full range of materials and options to meet the individual user requirements. Each and every DBB
valve is completely tested before leaving the factory to ensure adherence to customer specific cations and proper performance.
  • Fire safe design to API 607 & API 6FA
  • Flange to Screw: 2 Ball 1 Needle, 3 Needle, 
  • Flange to Flange: 2 Ball 1 Needle, 3 Needle,
  • Class: ANSI 150 ~ 2500# (Size: 1/2” ~ 2”)
  • Body material: A105, Stainless Steel, Alloy, High Alloy, Duplex, etc.
  • Seat: Soft (PTFE, RTFE, Devlon, Nylon, Peek, etc.) & Metal seat
DBB/SBB INSTRUMENT VALVE