Flanged DBB Ball Valves
   
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DBB Process valves allows for greatly simplified installation. Among the many advantages are reduced component count by eliminating conventional multi valve installation. This in turn results in a more compact installation size. Added to this, you benefit from a reduction in leak paths.

These valves can be installed directly onto pressure vessels or piping. They are available in ASME B16.5 and API flange connections, as well as standard threaded connections such as NPT.

The most common design is to have the outlet in 1/2" NPT to allow direct connection of a transmitter, gauge or switch. Alternatively, if you require an inline installation, the valve can be purchased with a flanged outlet to continue your piping installation.






Features

  • Available from 1/2" to 3" NB (DN15 to DN75)
  • Flange Connection in ASME B16.5 class 150 to 2500 or API 10 000 
  • Raised Face (RF) or Ring Type Joint (RTJ) Options
  • Full Bore valve design with 10mm / 15mm / 20mm / 25mm 
  • Outlet Connection available in Tube Ferrule Connector or NPT Thread
  • Vent Port available as 1/4" NPT (Standard) or 1/2" NPT
  • Temperature/Pressure Ratings designed to meet ASME B16.34 / B16.5
  • Pressure Boundaries are designed to meet ASME VIII Division 1
  • 4:1 Over-Pressure Safety Factor
  • Positive Handle Stop to index the handle correctly with ease
  • Lockable Handle Option available (locks in both open and closed positions)
  • Full Traceablilty back to source
  • 100% Pressure tested
  • 2 gin
  • Manifold marking to a minimum of MSS-SP-25

Flange / Flange



Flange / Thread



Thread / Thread

   
Options


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Specifications
Type Isolation Needle Valve with Bleed
Packing PTFE
Graphite
M.C.W.P. Pressure 6000 psi / 10 000 psi
Temperature Range -30°C (-22°F) to 215°C (420°F) PTFE
-30°C (-22°F) to 440°C (824°F) Graphite
-57°C (-70°F) to 215°C (420°F) Arctic
   

Connection Options
Process Connection Instrument Connection
1/4" NPT 1/4" NPT
1/2" NPT 1/2" NPT
3/4" NPT 3/4" NPT
1/4" BSP(G) 1/4" BSP(G)
1/2" BSP(G) 1/2" BSP(G)
3/4" BSP(G) 3/4" BSP(G)




  

   
Male - Female
Thread Size A B C D E Weight
1/4 " 53 28 68 22 26 178g
3/8 " 57 29 68 22 26 183g
1/2 " 57 30 71 27 32 236g
3/4 " 64 29 73 32 38  0g
1 " 71 29 78 41 49  0g
G1/4 " 71 29 78 41 49  0g
G3/8 " 71 29 78 41 49  0g
G1/2 " 71 29 78 41 49  0g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification
   
Female - Female
Thread Size A B C D E Weight
1/4 " 53 28 68 22 26 208g
3/8 " 57 29 68 22 26 235g
1/2 " 57 30 71 27 32 245g
3/4 " 64 29 73 32 38  0g
1 " 71 29 78 41 49  0g
G1/4 " 71 29 78 41 49  0g
G3/8 " 71 29 78 41 49  0g
G1/2 " 71 29 78 41 49  0g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification
 
 
Female - Male
Thread Size A B C D E Weight
1/4 " 53 28 68 22 26 178g
3/8 " 57 29 68 22 26 183g
1/2 " 57 30 71 27 32 236g
3/4 " 64 29 73 32 38  0g
1 " 71 29 78 41 49  0g
G1/4 " 71 29 78 41 49  0g
G3/8 " 71 29 78 41 49  0g
G1/2 " 71 29 78 41 49  0g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification
 
Tube - Tube
Tube Size A B C D E Weight
1/4 " 53 28 68 22 26 165g
3/8 " 57 29 68 22 26 160g
1/2 " 57 30 71 27 32 224g
3/4 " 64 29 73 32 38  0g
1 " 71 29 78 41 49  0g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification
 
 
Butt Weld - Female
Weld Size A B C D E Weight
1/4 " 53 28 68 22 26 0g
3/8 " 57 29 68 22 26 0g
1/2 " 57 30 71 27 32 0g
3/4 " 64 29 73 32 38  0g
1 " 71 29 78 41 49  0g
G1/4 " 71 29 78 41 49  0g
G3/8 " 71 29 78 41 49  0g
G1/2 " 71 29 78 41 49  0g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification




Decodification