Reducing Ferrules - Internal

internal reducing ferrule

Reducing ferrules provide an inexpensive way to connect small temporary transfer lines to valves or fittings designed for larger tubing. For long term use, we recommend our reducing unions, internal reducers (IZRs), or external reducers (EZRs), as appropriate.

Internal ZDV (zero dead volume) reducing ferrules are designed for use with all standard Valco internal style fittings - that is, those with a male nut and female fitting detail. The ferrule features an integral pilot which fills the pilot cavity (the space between the end of the ferrule and the bottom of the detail), yielding a zero dead volume fitting.

Select a material below to view sizes and product numbers:

PEEK
PTFE, glass-filled
CTFE

Polyimide, Valcon
Polyimide, virgin

PEEK internal reducing ferrules - package of 5

Properties: good chemical resistance and mechanical properties at slightly elevated temperatures

Size Product No.
1/16" to 1/32" ZRF1.5PK-5
1/8" to 1/32" ZRF2.5PK-5
1/8" to 1/16" ZRF21PK-5
1/4" to 1/16" ZRF41PK-5
1/4" to 1/8" ZRF42PK-5

CTFE internal reducing ferrules - package of 5

Properties: resists all inorganic corrosives; produced as Kel-F®

Size Product No.
1/16" to 1/32" ZRF1.5KF-5
1/8" to 1/32" ZRF2.5KF-5
1/8" to 1/16" ZRF21KF-5
1/4" to 1/16" ZRF41KF-5
1/4" to 1/8" ZRF42KF-5

Glass-filled PTFE internal reducing ferrules - package of 5

Properties: inert, mechanically stable

Size Product No.
1/16" to 1/32" ZRF1.5TFG-5
1/8" to 1/32" ZRF2.5TFG-5
1/8" to 1/16" ZRF21TFG-5
1/4" to 1/16" ZRF41TFG-5
1/4" to 1/8" ZRF42TFG-5

Valcon polyimide internal reducing ferrules - package of 5

Properties: high temp, graphite reinforced

Size Product No.
1/16" to 1/32" ZRF1.5V-5
1/8" to 1/32" ZRF2.5V-5
1/8" to 1/16" ZRF21V-5
1/4" to 1/16" ZRF41V-5
1/4" to 1/8" ZRF42V-5

Virgin polyimide internal reducing ferrules - package of 5

Properties: high temp, electrical insulator

Size Product No.
1/16" to 1/32" ZRF1.5V1-5
1/8" to 1/32" ZRF2.5V1-5
1/8" to 1/16" ZRF21V1-5
1/4" to 1/16" ZRF41V1-5
1/4" to 1/8" ZRF42V1-5

MORE INFORMATION

SEE ALSO

TECH TIPS

POLYMERS AT A GLANCE

  • CTFE
    Resists all inorganic corrosives; produced as Kel-F®
  • PEEK
    Good chemical resistance and mechanical properties at slightly elevated temperatures
  • PTFE, glass filled
    Inert, mechanically stable
  • Polyimide, Valcon
    High temp, graphite reinforced
  • Polyimide, virgin
    High temp, electrical insulator