Needle Valves: RG-90

Needle Valve for Gases (FxF)
Working Pressure 210 bar (3000 PSI)

TECVAL tecval-needle-valve-rg-90-for-gases-2-

TECVAL RG-90 valves are designed to secure a perfect closing and a total sealing with no maintenance. Their exclusive sealing system makes them suitable to work under high pressure with all kind of gases offering a total leak proof guarantee.


  • Stem thread isolated from fluid.
  • Sealing through double O-ring seal.
  • No packing re-adjustment required.
  • FPM O-rings.
  • 100% tested.


  • O-ring seals available in various materials.
  • Degreased for oxygen service.
  • Male-Female end connections.

  • Male-Male end connections.

Technical data

Maximum Pressure

Working Pressure 210 bar (3000 PSI)

Temperature Range

-20ºC/200ºC (-4ºF/392ºF)


Threaded NPT (ANSI B1.20.1)
Threaded BSP (DIN ISO 228-1)

Male M18x100

Dimensions 1/8"1/4"M18x1003/8"1/2"
A Open5858588585
A Closed5353537878
Orifice Size 33368
Flow Coefficient (Cv)

Brass (2.0402)

AISI-316L (1.4404)


PartBrass AISI-316L
1 Set screwAISI-304 (1.4301)AISI-304 (1.4301)
2 WasherAISI-304 (1.4301)AISI-304 (1.4301)
3 Hand wheelBlack polyamidBlack polyamid
4 NutBrass (2.0401)AISI-316L (1.4404)
5 Panel nutBrass (2.0401)AISI-316L (1.4404)
6 O-ring sealsFPMFPM
7 StemAISI-316L (1.4404)AISI-316L (1.4404)
8 Movable stem tipAISI-316L (1.4404)AISI-316L (1.4404)
9 BodyBrass (2.0402)AISI-316L (1.4404)
TECVAL rg90-desp-cotes-fitxa-antiga-1-
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