Needle Valves: RG-91

Precise Micro-flow Regulating Valve (FxF)
Up to 210 bar (3000 PSI)

TECVAL tecval-rg-91-micro-flow-regulating-valves-2-
TECVAL


TECVAL RG-91 regulating and sealing valves are especially suitable to guarantee a fine micro-flow control under high pressure or moderate vacuum service. They are commonly used to regulate flows in analysis equipment, sampling systems in laboratories, gas chromatography, flow meters, etc…

Features

  • Precise, uniform and constant regulation.
  • 2 o 4 mm flow orifice size.
  • Solid forged body.
  • Easy packing external adjustment.
  • Compact design.
  • PTFE packing.
  • 100% tested.

Options

  • Panel Nut
  • Degreased for oxygen service.
  • Male-Female end connections.
  • Handle safety lockout.

Technical data

Maximum Pressure

Up to 210 bar (3000 PSI)

Temperature Range

-20ºC / 200ºC (-4ºF / 392ºF)

Connections

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

Dimensions 1/8"1/8"1/4"1/4"
A Opened70707070
A Closed53535353
B15151515
C42424242
Orifice Size 2424
Flow Coefficient (Cv) 0.090.310.090.31
Materials

Brass (1.7660)

AISI-316L (1.4404)

Special alloys (For detailed information consult attached data sheet)

Materials

PartBrass AISI-316L Special alloys 
1 Set screwAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
2 WasherAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
3 Hand wheelRed polyamidRed polyamidRed polyamid
4 NutBrass (1.7660)AISI-316L (1.4404)AISI-316L (1.4404)
5 Panel nutBrass (1.7660)AISI-316L (1.4404)AISI-316L (1.4404)
6 GlandBrass (1.7660)AISI-316L (1.4404)AISI-316L (1.4404)
7 PackingP.T.F.E.P.T.F.E.P.T.F.E.
8 StemAISI-316L (1.4404)AISI-316L (1.4404)Special alloy
9 BodyBrass (1.7660)AISI-316L (1.4404)Special alloy
TECVAL rg91-desp-cotes-fitxa-antiga
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