Polyphenylene Sulfide (PPS) Flangeless Nut – 1/4''-28

An economically priced alternative to PEEK, this series of PPS ¼-28 nuts offers three low-pressure sealing options: inverted ferrule, flanged with washer, or VICI Jour’s patented collapsible ferrule.

These nuts provide excellent chemical and pressure resistance for 1/16” or ⅛” tubing (and 1/32” with inverted ferrule). They are fingertight when used with our Color-Sleeve adapters.

TECH TIPS

Color-Sleeve adapters turn PPS nuts into fingertight fittings and color-code different solvent lines for easy identification.

A PPS nut may also be used with a PEEK ferrule and stainless-steel bushing for high-pressure applications.

CHEMICAL RESISTANCE OF PPS

A = suitable

B = marginal

C = not recommended

* Not recommended for use with concentrated halogen acids

For more detailed chemical resistance information, refer to Chemical Resistance of PEEK and other Polymers

For 1/16” or ⅛” OD tubing, and for 1/32” OD tubing with inverted ferrule

Material: PPS (Polyphenylene sulfide)

Threads: 1/4-28 threads

Pressure Rating: (varies with tubing material and ID)

Properties of Polymers

Chemical Resistance of PEEK and Other Polymers

See Also

1/4-28 Fittings for High Pressure Connections