Needle Valves / Hand Valves with Bleed - L1/B
   
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Hand valves are a plug valve design, available in a variety of different shapes, sizes and primarily used for isolation of pressure gauges, switches and pressure transmitters. These high quality items are a can be purchased with various inlet and outlet connections.

Needle Valves are very similar in design, except they are capable of metering flow rates very accurately. This is achieved with large movements being required for small changes in flow.

A pressure bleeding function is incorporated into these valves, via the bleed screw. This makes removal of the device connected to this valve simple as pressure can be relieved prior to removal.

Male / Female


Female / Male


Welded Inlet

   

Options
Female / Female


Tube / Tube


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Features

  • Superior Valvehead Technology
  • Long Service Life
  • Metal to metal seat for positive bubble tight shutoff
  • Bonnet to body seal below bonnet threads isolating them from the process media
  • Space saving compact design
  • Accurate flow control at low flow rates for sustained periods for needle valve versions
  • Various Cv Ratings available
  • Equipped with a 5/16” UNF bleed port for bleeding off pressure or easy connection of calibrating equipment
  • Many connection options available. This allows the user great flexibility and reduces amount of external components needed. Possible connections are male thread, female thread, tube end, butt weld and socket weld
  • Tube end design eliminates the requirement for additional compression fittings, thus reducing costs, installation time and potential leak paths
  • Full Traceablilty back to source
  • 100% Pressure tested with nitrogen gas
  • 2 Times over-pressure safety margin
  • Manifold marking to a minimum of MSS-SP-25

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 " 56 28 68 22 26 190g
3/8 " 59 29 68 22 26 205g
1/2 " 59 30 71 27 32 256g
3/4 " 66 33 76 32 38  385g
1 " 73 35 85 41 49  660g
G1/4 " 65 32 68 22 26 201g
G3/8 " 68 33 68 22 26 212g
G1/2 " 68 33 71 27 32 270g
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 " 56 28 68 22 26 220g
3/8 " 59 29 68 22 26 247g
1/2 " 59 30 71 27 32 265g
3/4 " 66 29 76 32 38  410g
1 " 73 29 85 41 49  730g
G1/4 " 65 32 68 22 26 232g
G3/8 " 68 33 68 22 26 248g
G1/2 " 68 33 71 27 32 280g
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 " 56 28 68 22 26 191g
3/8 " 59 29 68 22 26 205g
1/2 " 59 30 71 27 32 256g
3/4 " 66 29 73 32 38  385g
1 " 73 29 78 41 49  660g
G1/4 " 65 32 68 22 26 201g
G3/8 " 68 33 68 22 26 212g
G1/2 " 68 33 71 27 32 270g
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 " 56 28 68 22 26 177g
3/8 " 59 29 68 22 26 162g
1/2 " 59 30 71 27 32 244g
3/4 " 66 29 76 32 38  380g
1 " 73 29 85 41 49  650g
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 " 77 50 68 22 26 257g
3/8 " 77 50 68 22 26 272g
1/2 " 78 50 71 27 32 325g
3/4 " 80 50 76 32 38  480g
1 " 82 50 85 41 49  800g
Threads are NPT and BSPG, Dimensions in mm
Specifications subject to change without prior notification




Decodification