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VO SERIES

One Touch
Push-In Fittings

Push-in, pull-out tube fittings for every pneumatic circuit — straight unions, elbows, tees, branch and reducer configurations with a robust stainless steel collet that stays reliable under vibration.

Ø4–Ø16mm Tube10 Bar MaxNylon & PU Tube360° Rotating Nipple
UFlow VO Series one touch push-in fittings
Max Pressure10 Bar
Tube OD RangeØ4 – Ø16 mm
ThreadR Taper / G Parallel
Ambient Temp-10°C to +60°C
Specifications

Fitting Specifications

Media
Air
Max. Operating Pressure
10 Bar
Ambient Temperature
-10°C to +60°C
Media Temperature
+5°C to +50°C
Threaded Connection
Male: R Taper  |  Female: G Parallel
Applicable Tube Material
Nylon, Polyurethane
Applicable Tube OD
Ø4, Ø6, Ø8, Ø10, Ø12, Ø14, Ø16 mm
Tube OD Tolerance
±0.1 mm
Model Chart

Straight Union Range

Model No.Tube ODThread ØDLength
VO-2104044 mm11 mm31 mm
VO-2106066 mm13 mm33 mm
VO-2108088 mm15 mm35 mm
VO-21101010 mm19 mm39 mm
VO-21121212 mm21 mm42 mm
VO-21141414 mm23 mm42 mm
VO-21161616 mm26 mm46 mm

Also available: different-dia straight union, union elbow, union elbow reducer, union tee, union Y, male/female connector, male/female elbow, run tee, branch tee, bulkhead union, multi-distributor and swivel fittings.

Matching Tubing

Plastic Tubing for VO Fittings

Three tube constructions pair with the VO Series — Polyurethane (PU) for flexibility, Nylon N6 for general duty and Nylon N12 for higher-pressure lines. Maximum working pressure derates with ambient temperature: 10 Bar at 5–30°C down to 7 Bar at 50–60°C.

Tube TypeTube ODTube IDMin. Bend RadiusModel Prefix
PU Tube4mm2mm10mmPU-0402
PU Tube8mm5mm25mmPU-0805
PU Tube12mm8mm35mmPU-1208
PU Tube16mm11mm140mmPU-1611
Nylon N64mm2mm20mmN6-0402
Nylon N68mm6mm50mmN6-0806
Nylon N612mm10mm80mmN6-1210
Nylon N124mm2.5mm20mmN1-0425
Nylon N128mm6mm50mmN1-0806
Nylon N1212mm9mm80mmN1-1209

All tubing available in Blue, Black, Red, Yellow, Silver & Transparent — full OD range Ø4–Ø16mm (PU) and Ø4–Ø14mm (Nylon N6/N12) on request.

Why VO Series

Fast, Reliable Tube Connections

  • New-design stainless steel collet — vibration resistant fitment
  • Full-bore piping for smooth, low-restriction flow
  • Threaded nipples rotate 360° for easy alignment
  • Male taper threads with PTFE coating — no thread tape needed
  • Simple plug-in / press-to-release operation, maintenance free
Applications

Where It's Used

One-touch fittings are used across virtually every compressed air circuit — pneumatic cylinders, directional and solenoid valves, control panels, and air preparation (FRL) units.

Pneumatic CylindersDirectional ValvesControl PanelsFRL Units
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Related Products

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