RG90-07 - TECVAL,S.L., 2021 all rights reserved.
Needle Valve for Gases (FxF)
Working Pressure 210 bar (3000 PSI)

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.


Solid forged body.
Stem thread isolated from fluid.
Sealing through double FPM O-ring seals.
No packing re-adjustment required.
100% tested.


NITRILE (NBR) o-ring seals for carbon dioxide, methanol,...  B 
Male-Female end connections.  C 
Degreased for oxygen service.  D 
EPDM o-ring seals for acetylene,...  E 
Male-Male end connections.  J 
NEOPREN o-ring seals for ammonia,...  N 
Handle safety lockout.  W 
Panel Nut.  X 
Technical data
Max. Pressure Working Pressure 210 bar (3000 PSI)
Temperatures -20ºC/200ºC (-4ºF/392ºF)
Dimensions 1/8" 1/4" M18x100 3/8" 1/2"
A Open5858588585
A Closed5353537878
Orifice Size 3 3 3 6 8
Maximum Cv 0.2 0.2 0.2 0.7 1.3
Order codes

* Dimensions in mm
PartBrass  LA AISI-316L  A4 
1 Set screwAISI-304 (1.4301)AISI-304 (1.4301)
2 WasherAISI-304 (1.4301)AISI-304 (1.4301)
3 Hand wheelBlue polyamidBlue polyamid
4 NutBrass (2.0401)AISI-316L (1.4404)
5 Panel nut (option)Brass (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)
Elastomers & Seats

O-ring seals (position 6) can be made of different materials (NITRILE, EPDM, NEOPREN, FFPM,...etc.) upon request, considering the working conditions and fluid of the valve. For further information, please contact our Technical Department.

Ordering information

References are formed by three parts:

 Valve Code 
Look for it in the order codes chart on the previous page.
..  Option/s 
-If required, add the code/s from the options section on the previous page (in alphabetical order)
...  Material 
-Look for the code on the materials chart.

An example of valve with one option:

Needle valve RG-90 1/4"NPT Brass degreased for oxygen service:
 1009   D   LA  The reference required to place the order is: 1009DLA



100% tested in accordance to API STANDARD 598. Each valve is tested with Nitrogen to check the leakage in the seats and packing. Upon request, the corresponding materials and test certificates can be delivered with the valve.


All TECVAL valves are supplied packed in individual polyethilene airtight bags, which include the general features of the valve. End screw connections are protected with polyethilene caps. Everything is 100% recyclable.

C/Berlín, 1 Nave 4 - Pol.Can Torrella - 08233-VACARISSES - Barcelona - SPAIN | Tel: +34 938 280 055 | email: tecval@tecval.es