Flangeless SealTight Fittings

For Flat-Bottom Ports

  • Hold up to 5,000 psi in 1/4-28 Flat-Bottom Ports
  • All Polymer construction
The Upchurch Scientific Flangeless SealTight Fittings system has redefined the pressure range of metal-free applications for traditional 1/4-28 flat-bottom ports. Our innovative F-290 Ferrule incorporates the dual compression mechanism of the F-192 coned SealTight Ferrule in a design that allows its use in a flat-bottom port. With this ferrule and a Flangeless SealTight nut, it is now possible to hold pressures up to 5,000 psi (345 bar) with all-polymer components in flat-bottom ports.

All Flangeless SealTight nuts require the PEEK F-290 Flangeless SealTight Ferrule. This fittings system, for use with 1/16" OD Tubing only, is particularly well suited for applications where metal is undesirable, such as those involving NMR or microwaves.

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Item #

Item Name

Type

Port Size

Color

List Price

F-290

Flangeless SealTight Ferrule

Ferrule

N/A

Black

$4.71
F-292

SealTight Flangeless Nut Delr

Nut

46756

Blue

$1.28
F-294

SealTight Flangeless Nut PEEK

Nut

46756

Black

$2.85
F-298

Shrt SealTight Flngs Nut PEEK

Nut

46756

Black

$2.85