Description
Straight OD Tube-to-FPT Connectors with PG Plastic Gripper Nuts
These JACO nylon compression tube female connectors join compatible plastic tubing to a male NPT-threaded component. The female pipe-thread end follows the NPT standard.
Choose from six combinations covering 1/4-inch, 3/8-inch, and 1/2-inch tube outside diameters. Female pipe-thread sizes include 1/4 inch, 3/8 inch, and 1/2 inch.
Key Features
- Female pipe connection: The female NPT end connects to a matching male NPT-threaded component.
- PG plastic gripper nut: This compression fitting for plastic tubing uses JACO's PG nut, with a published maximum rating of 220 PSI.
- Nylon 6 construction: JACO describes Nylon 6 as tough, strong, abrasion resistant, and impact resistant.
- Published material temperature rating: JACO rates Nylon 6 from -40°F to 250°F. This is a material rating, not a complete system rating.
- Defined chemical compatibility: Nylon has good resistance to organic solvents, oils, hydrocarbons, and fuels. It has poor resistance to strong acids and bases. Browse the JACO fittings collection for other materials and configurations.
- Material listings: JACO identifies its Nylon 6 material as NSF Listed and FDA Listed.
Specifications
This nylon female compression connector is a JACO Series 25 design with a female NPT connection.
| Specification | Details |
|---|---|
| Brand | JACO |
| JACO Configuration | Series 25 Female Connector |
| Material | Nylon 6 |
| Connection Type | Compression tube OD x FPT female pipe connection |
| Pipe Thread Standard | NPT, female |
| Nut Style | PG plastic gripper nut for plastic tubing |
| Cleanflow Tube OD Options | 1/4 inch, 3/8 inch, and 1/2 inch |
| Cleanflow FPT Options | 1/4 inch, 3/8 inch, and 1/2 inch |
| PG Nut Maximum Rating | 220 PSI maximum published rating |
| Nylon 6 Material Rating | -40°F to 250°F |
| Wet-Service Guidance | Typically not preferred because Nylon 6 absorbs water |
| Chemical Guidance | Good with compatible organic solvents, oils, hydrocarbons, and fuels; poor with strong acids and bases |
| Material Listings | JACO identifies Nylon 6 as NSF Listed and FDA Listed |
Selection note: The 220 PSI value applies to the PG nut's published maximum. Actual limits depend on fluid, tubing, temperature, mechanical use, and the complete system design.
Available Tube OD and FPT Sizes
Choose each tube OD x female NPT connector by matching the tubing outside diameter and the female pipe-thread size.
| Tube Outside Diameter | FPT Size | Cleanflow Variant Label |
|---|---|---|
| 1/4 inch | 1/4 inch | 1/4" OD Tube x 1/4" FPT |
| 3/8 inch | 1/4 inch | 3/8" OD Tube x 1/4" FPT |
| 3/8 inch | 3/8 inch | 3/8" OD Tube x 3/8" FPT |
| 3/8 inch | 1/2 inch | 3/8" OD Tube x 1/2" FPT |
| 1/2 inch | 3/8 inch | 1/2" OD Tube x 3/8" FPT |
| 1/2 inch | 1/2 inch | 1/2" OD Tube x 1/2" FPT |
FPT means female pipe thread. JACO classifies the Series 25 pipe connection under its NPT thread sizes. Tube OD and nominal pipe size are different measurements.
Material and Tubing Selection
Choose JACO nylon fittings only after checking the exact fluid, concentration, temperature, pressure, and exposure conditions. JACO reports good resistance to compatible organic solvents, oils, hydrocarbons, and fuels.
Nylon 6 absorbs water and is typically not preferred for wet applications. JACO also reports poor resistance to strong acids and bases.
The PG plastic gripper is intended for plastic tubing. Soft or thin-wall tubing may require an internal support insert. Confirm this requirement with the tubing supplier.
For another material option in the same female-connector layout, compare the JACO Kynar compression tube female connectors.
How to Install JACO Nylon Compression Tube Female Connectors
- Cut the tubing end squarely and remove the internal and external burrs.
- Insert the tubing through the back of the nut and through the nut assembly to the tube stop in the fitting body.
- Hold the tubing firmly against the tube stop, then hand-tighten the nut.
- Wrench-tighten the nut 1-1/2 to 2 additional turns.
- Retighten all nuts when the system reaches its projected operating temperature.
Installation caution: The tubing must be fully inserted into the fitting body and held against the tube stop before tightening.
- If tubing does not enter easily, loosen the nut one turn and insert it fully to the tube stop.
- Do not disassemble the fitting for installation. Insert the tubing to the stop and tighten the nut.
- A squeaking sound while tightening the nut is normal.
- Use PTFE pipe thread sealant or PTFE pipe seal tape on NPT pipe-threaded connections.
- Do not mix or interchange JACO parts with components from other manufacturers.
Suitable Service Considerations
- Compatible oil and fuel lines: Verify the exact fluid, tubing, pressure, and temperature before use.
- Compatible hydrocarbon and organic-solvent lines: Check the chemical concentration and complete operating environment.
- Plastic tube-to-pipe connections: Use where a PG compression end must connect with a male NPT component.
If the equipment has a female threaded port, compare the JACO nylon compression tube male connectors.
Choose the Correct JACO Female Connector
Select the JACO nylon female compression connector by tube OD and female pipe-thread size. Review the chemical-resistant tube and fittings collection when comparing compatible tubing and connector materials.
For critical service, confirm the complete system's fluid, tubing, pressure, temperature, installation, and maintenance requirements.
Frequently Asked Questions
What does FPT mean on this JACO connector?
FPT means female pipe thread. In these size options, it identifies the connector's female NPT end, which mates with a corresponding male NPT-threaded component.
What is the maximum pressure rating of the PG nut?
JACO publishes a 220 PSI maximum for its PG plastic gripper nut. The actual system limit may be lower because fluid, tubing, temperature, mechanical conditions, installation, and other components affect allowable pressure.
What is the temperature rating of JACO Nylon 6?
JACO publishes a -40°F to 250°F material temperature rating for Nylon 6. This range does not automatically become the system rating. Confirm the fluid, tubing, pressure, and surrounding operating conditions.
Is Nylon 6 suitable for wet or chemical service?
Nylon 6 is typically not preferred for wet applications because it absorbs water. JACO reports good resistance to compatible oils, fuels, hydrocarbons, and organic solvents, but poor resistance to strong acids and bases.
How do you install a JACO nylon female compression connector?
Cut and deburr the tubing, insert it fully to the tube stop, and hand-tighten the nut. Wrench-tighten another 1-1/2 to 2 turns. Retighten all nuts after reaching projected operating temperature.
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