Single and Double Block & Bleed Valves

Mono Flange Valve

Mono Flange Valve

 Mono Flange Valve

  • ASME B16.5 flanged inlet connections 1/2” to 2” sizes
  • Standard 1/2” NPT female outlet
  • Bleed port 1/2” NPT female with Hex Plug is standard
  • OS&Y with graphite packing is standard, optional PTFE
  • Needle valve with PTFE packing is standard, optional Graphite
  • Optional fire safe design to BS6755 Part 2
  • Optional NACE certification

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Block and bleed valve

Block and bleed valve

Block and Bleed Valves

  • Reduced potential leak paths with primary & secondary isolation in one valve
  • Compact ball/OS&Y/needle valve assembly in one DBB
  • Flange construction as per the requirements of ASME B16.5
  • Pressure ratings as per ASME B16.34 Class 150 thru 2500
  • Wetted components of Sour gas service valve are selected as per the requirements of NACE MR0175 /ISO 15156
  •  Fire tested as per BS 6755 part 2

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Cert Auth. Type Cert Number Issue Date Expiry Date PDF
DK-Lok Corp 8. Block and Bleed and Mono Flange Valve Product Overview Catalogue No. DBB-2 2015-07-01 Download
VE56 Series Instruments Manifolds (Mar No.VE56-1 2016-03-01 Download