Nanovolume 360 µm fittings are optimized for use with stainless or electroformed nickel tubing. They are made from HPLC-grade stainless steel, including stainless steel nut and ferrule.


Grooves on the fitting body indicate the bore size (PEEK union shown):

For more information on stainless steel, refer to Properties of Metals.


For 360 µm metal tubing

Material: HPLC-grade stainless steel

Pressure rating: <1,375 bar (20,000 psi)

(Varies with tubing material and ID)

These new reducing unions can connect metric tubing to imperial fittings, valves, and chromatographic systems.  The unions are manufactured from Type 303 stainless steel. For easy identification, the metric end is marked by a groove. Two nuts and ferrules ship with each reducing union.



1/32" to 1.0 mm

1/16" to 2.0 mm

1/8" to 3.0 mm


Body Type 303 SS
Nuts Type 303 SS
Ferrules Type 316 SS


Pressure rating:1,375 bar (20,000 psi)
(Varies with tubing material and ID)

For more information on Stainless Steel, refer to Properties of Metals



See Also

Stainless Steel Tubing

ValvTool for Tightening Hex-Head Fittings

These nuts are for use with all standard Valco internal fittings and most valves. They also may be used with fittings from other manufacturers. The medium and long types are ideal for metal Valco and Cheminert® valves with more than 8 ports, or where the fitting head may be otherwise inaccessible.

They are sized for use with 1/32", 1/16", and 1/8" OD tubing, and are available in different lengths.

For more information on stainless steel, refer to Properties of Metals


Using nuts with different lengths will create more space for easier wrench access.


For 1/32", 1/16", and 1/8" OD tubing

Pressure rating with premium SS tubing and ZF1S6 ferrule:

1,375 bar (20,000 psi)

(Varies with tubing material and ID)

Material: Type 303 Stainless steel


1/32" 6-40
1/16" 10-32
1/8" 5/16-24

See Also

Valco ferrules

Stainless steel tubing

ValvTool for tightening hex-head fittings

Color-It Adapters

Color Sleeve Fingertight Adapter

Replacement ferrules for VICI Jour Imperial to Metric UHPLC Stainless Reducing Unions. Using these unions, metric tubing can be connected to imperial fittings, valves and chromatographic systems.

  • Ultra-high pressure
  • For 1 mm, 2 mm, and 3 mm OD tubing
  • Type 303 stainless steel