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Dwyer TNV-1 | PTFE Needle Valve | 3/8" female NPT, Cv 0.75
The Dwyer TNV-1 is a PTFE needle valve with 3/8" female NPT ends for regulating corrosive gases and liquids in high-purity laboratory and industrial service. Media touch only PTFE and PCTFE, and the rigid PCTFE spindle reduces the creep usually seen with PTFE.
- Flow coefficient (Cv) 0.75
- Maximum flow: air 300 LPM, water 9 LPM
- Rated to 75 psi (517 kPa) and 150°F (65°C)
- Can serve as a shut-off valve in pressure or non-critical vacuum applications
- PTFE body and O-ring, PCTFE valve spindle
- Specifications
- Features
- Downloads
| Part Number | TNV-1 |
| Brand | Dwyer |
| End Connections | 3/8" female NPT, female x female |
| Flow Coefficient (Cv) | 0.75 |
| Max Flow Rate | Air: 300 LPM; Water: 9 LPM |
| Max Operating Pressure | 75 psi (517 kPa) |
| Max Operating Temperature | 150°F (65°C) |
| Wetted Materials | Body and O-ring: PTFE; spindle: PCTFE |
- The Model TNV PTFE Needle Valve is specifically designed for laboratory and industrial applications where regulation of corrosive gases and liquids is required, making it suitable for high purity services.
- Media only come in contact with PTFE (polytetrafluoroethylene) and PCTFE (polychlorotrifluoroethylene), ensuring compatibility with a wide range of corrosive substances and maintaining purity.
- Valve spindles are made of ridged PCTFE to minimize "creeping" typically associated with PTFE, enhancing stability and reliability during operation.
- The TNV is designed to be used in pressure or non-critical vacuum applications, providing versatility in application scenarios.
- This needle valve can also be utilized as a shut off valve, offering added functionality and flexibility in fluid control systems.
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