1/4-28 x 1/4-28 Inline Check Valve
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Whereas standard ChipShop connectors only accept soft-walled tubing, this set of connectors allows connecting any 1/16" OD rigid tubing to a ChipShop chip.
Suitable for rigid tubing (PTFE, PEEK, etc.) with an OD of 1/16" (1.6 mm). Manufactured in blue TPE, max. pressure of 3.2 bar with a 1/16" OD PEEK tubing.
Plugs to block unused ports are also available in our shop.
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The standard Micro-Metering Valve allows you to precisely control your fluid flow rate and reduce pulsatility using peristaltic pumps. It is manufactured in PEEK for better chemical resistance and accepts 1/16" OD or 1/8" OD tubing.
This valve operates as a precision needle valve that regulates fluid flow by adjusting the gap between a PEEK needle and its seat via the manual black thumbscrew. Rotating the thumbscrew clockwise drives the needle into the flow path to increase resistance and decrease flow, while counterclockwise rotation retracts the needle to allow for fine flow control.

| P-445 | P-447 |
| 1x Micro-Metering Valve for 1/16" OD tubing 2x PEEK flangeless fittings for 1/16" OD tubing |
1x Micro-Metering Valve for 1/8" OD tubing 2x PEEK flangeless fittings for 1/8" OD tubing |
| P-445 | P-447 | |
| Volume | 7.7 µL | |
| Thru hole | 0.50 mm (0.020") | |
| Material | PEEK | |
| Color | Black | |
| Thread port configuration | 1/4-28 flat-bottom | |
| Max. pressure rating | 55 bar (800 psi) | |
| Tubing OD | 1/16" (1.6 mm) | 1/8" (3.2 mm) |

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