Manifolds and Instrumentation Valves: CP-04

Back-Seat Needle Valve (MxF)
Working Pressures: 100 | 420 bar (1500 | 6000 PSI)

TECVAL foto651478260409

TECVAL CP-04 needle valves are designed to work with liquids under both high pressure and temperature service. Their back-seat allows the free packing change while the valves are in service. They are used to insulate and avoid damaging instruments on the installation, since they do not cause water hammer, thanks to their design.


  • Male-Female connections.
  • Metal-to-metal shut-off.
  • Easy packing external adjustment.
  • Free packing change in service.
  • PTFE packing.
  • 100% tested.


  • Bleed screw in outlet.
  • Grafoil packing for high temperatures.
  • AISI-316 T-Bar handle.
  • High working pressure 420 bar (6000 PSI).
  • Female - Female connections (FxF).

Technical data

Maximum Pressure

Standard pressure: 100 bar (1500 PSI)
High pressure: 420 bar (6000 PSI)

Temperature Range

-20ºC/400ºC (-4ºF/752ºF)


Threaded NPT (ANSI B1.20.1)
Threaded BSP (ISO 7R-Rp)

Dimensions 1/4"1/2"
A Open8992
A Closed8282
C (GAS-BSP)6375
C (NPT)6370
Orifice Size 2.52.5
Flow Coefficient (Cv) 0.10.1

Brass (1.7660)

Carbon Steel (1.1158)

AISI-316L (1.4404)

Special alloys (For detailed information consult attached data sheet)


PartBrass Carbon Steel AISI-316L Special alloys 
1 Set screwAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
2 Handle washerAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
3 Handle wheelBlack painted aluminiumBlack painted aluminiumBlack painted aluminiumBlack painted aluminium
4 NutBrass (1.7660)F-112 (1.1158)AISI-316L (1.4404)AISI-316L (1.4404)
5 GlandBrass (1.7660)F-112 (1.1158)AISI-316L (1.4404)AISI-316L (1.4404)
6 PackingP.T.F.E.P.T.F.E.P.T.F.E.P.T.F.E.
7 BonnetBrass (1.7660)F-112 (1.1158)AISI-316L (1.4404)Special alloy
8 StemAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)Special alloy
9 BodyBrass (1.7660)F-112 (1.1158)AISI-316L (1.4404)Special alloy
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