Dwyer Instruments TNV Catalog Page

Model

3/8˝ NPT

CONNECTIONS

3-5/16

[84.23]

2-9/32

[58.06]

1-1/4

[31.75]

5/8

DOUBLE SIDED
FLATS
5/8˝ WIDE

TNV

PTFE Needle Valve

All PTFE and PCTFE Wetted Parts

The Model TNV PTFE Needle Valve is designed for laboratory and industrial
applications for regulating corrosive gases and liquids for high purity services. Media only
come in contact with PTFE and PCTFE. Valve spindles are made of ridged PCTFE to
minimize “creeping” normally associated with PTFE. The TNV is designed to be used in
pressure or non-critical vacuum applications and can be used as a shut off valve.

Model TNV-1, PTFE Needle Valve (Female x Female)

SPECIFICATIONS
Service: Gases and liquids compatible with wetted materials.
End Connections: 3/8˝ female NPT.
Pressure Limits: 75 psi (517 kPa).
Wetted Materials: Body and O-ring: PTFE; Valve spindle: PCTFE.
Temperature Limits: 150°F (65°C).
Flow Coefficient: 0.75.
Max. Flow: Air: 300 LPM; Water: 9 LPM.
Weight: 5.6 oz (158.8 g).