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Model-TNV
PTFE Needle Valve for Corrosive Gases & Liquids – High Purity Use
Models In Stock
Model-TNV
From
$
205.60
Models In Stock
Product Overview
- Air Flow, Max 300 l/min
- Applications Industrial and Manufacturing, Laboratories and Scientific
- Flow Coefficient 0.75
- Liquid Flow, Max 9 l/min
- Materials, Wetted PCTFE (Polychlorotrifluoroethylene), PTFE
- Media Compatibility Clean dry air / inert gas, Compatible Liquids
- Operating Temperature, Max 150 °F
- Port 1 Size 3/8 in
- Port 2 Size 3/8 in
- Port 2 Type NPT Female
- Proof Pressure Up to 75 psi
- Series ID Model-TNV
- Weight 5.6 oz
Supported Applications
The Dwyer Model TNV PTFE Needle Valve is designed for laboratory and industrial applications to regulate corrosive gases and liquids in high purity services. The valve functions as a shut-off device and is intended for use in pressure or non-critical vacuum applications.
Operating Conditions & Performance
The series operates within specific limits defined by its wetted materials and mechanical design:
- Pressure Limits: 75 psi (517 kPa).
- Temperature Limits: 150°F (65°C).
- Service Media: Gases and liquids compatible with wetted materials.
- Flow Coefficient: 0.75.
- Maximum Flow Rates: Air: 300 LPM; Water: 9 LPM.
The valve spindle is constructed from ridged PCTFE to minimize "creeping" normally associated with PTFE, ensuring stable regulation. Media contact is restricted exclusively to PTFE and PCTFE components.
Configuration Options
The Model TNV series offers a single configuration focused on chemical resistance:
- End Connections: 3/8" female NPT.
- Wetted Materials: Body and O-ring: PTFE; Valve spindle: PCTFE.
- Dimensions (Overall): Height: 3-5/16 [84.23]; Length: 2-9/32 [58.06]; Width: 1-1/4 [31.75]. Units are provided in inches and millimeters as extracted from the source diagram.
- Weight: 5.6 oz (158.8 g).
Key Product Differences
The series is represented by a single model variant, TNV-1. No alternative housing styles, connection sizes, or material options are documented for this specific product line in the provided sources.
PDFs & Manuals
