Threaded Union Connectors

Our Threaded Union Connectors are an essential component in microfluidic systems, engineered for precision and leak-free performance. These fittings ensure secure connections even under high pressure, compatible with tubing sizes of 1/8" (3.2 mm), 1/16" (1.6 mm), 1/32" (0.8 mm), and others. Ideal for applications such as biomedical diagnostics and lab-on-a-chip devices, these connectors guarantee consistent flow control with minimal dead volume.

Crafted from materials like PEEK, PTFE, and other fluoropolymers, they offer excellent chemical resistance and unrivaled durability, standing up to various challenging environments. With their easy installation, these fittings integrate seamlessly with compatible tubing and microfluidic setups.

Enhance your system's precision, efficiency, and reliability with our high-quality Threaded Union Connectors—order today to ensure your microfluidic solutions achieve optimal performance.

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IDEX Health & Science
1/4-28 PEEK Union Adapter
This PEEK 1/4-28 union adapter is designed to connect two rigid tubings. Optional 1/4-28 PEEK fittings and ETFE ferrules for 1/16" OD or 1/8" OD tubing. General The 1/4-28 union efficiently connects...

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Now: £17.20 - £29.30

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IDEX Health & Science
1/4-28 Union (pack of 5)
A standard union for connection between two 1/4-28 fittings. Tubing join together directly in the union, providing a zero dead volume connection. Manufactured in Delrin (PFA) or ETFE for high...

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Now: £21.00 - £33.30

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IDEX Health & Science
MicroTight PEEK Adapter for 1/16" OD to 1/32" or 360 µm OD Tubing Kit
These MicroTight® adapters are designed to connect easily 1/16" OD tubing to 360 µm capillary tubing, or 1/16" OD tubing to 1/32" OD tubing, with zero dead volumes. Comes with suitable fittings to...

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Now: £51.00 - £51.40

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IDEX Health & Science
1/4-28 Male Union Adapters (pack of 5)
The Male Union Adapter has a 1/4-28 flat-bottom thread port style and is manufactured from PEEK, allowing an excellent chemical resistance. Sold by pack of 5 units. General The Male Union...

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Now: £94.50

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Darwin Microfluidics
1/4-28 Female Straight Union (5-pack) - PP
This 1/4-28 Female union is designed to connect two male 1/4-28 threaded connectors in a straight line. Made from polypropylene (PP), it offers good chemical resistance and cost-effectiveness, and is...

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Now: £12.50

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IDEX Health & Science
10-32 Coned to 1/4-28 PEEK Adapter
The threaded adapter assembly made in biocompatible PEEK is perfect to connect different threads. Its configuration allows a perfect connection between a female 10-32 coned to female 1/4-28...

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Now: £36.60

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IDEX Health & Science
1/4-28 Elbow Union
This PEEK elbow connector is designed to be used in tight corners. Pack of 1 elbow connector with 2x flangeless PEEK fittings for 1/16" OD or 1/8" OD tubing. General Elbow connectors manufactured in...

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Now: £70.40 - £70.60

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IDEX Health & Science
10-32 Flat-Bottom Union Adapters (pack of 5)
VacuTight 10-32 flat-bottom union adapter manufactured in PEEK to connect two 10-32 flat-bottom fittings. Sold by pack of 5 units. General The 10-32 flat-bottom VacuTight union efficiently connects...

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Now: £92.20

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Darwin Microfluidics
1/4-28 Female Elbow Connector - PEEK
The 1/4-28 Female Elbow Connector is a convenient fitting designed for microfluidic systems requiring an L-type flow path. It ensures a leakage-free connection for rigid tubing systems while offering...

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Now: £17.00

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Darwin Microfluidics
1/4-28 Female Straight Union (5-pack) - PEEK
The 1/4-28 Female Straight Union is a fitting designed for extending the fluidic path in microfluidics systems. It ensures a leakage-free connection while offering excellent biocompatibility and...

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Now: £66.00

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IDEX Health & Science
MicroTight 6-32 Coned Union Assembly for 1/32" OD Tubing
This MicroTight assembly connects 1/32" OD capillary tubings together. Tubings join together directly in the assembly, providing a zero dead volume connection. General Manufactured in PEEK, this...

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Now: £51.00

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Darwin Microfluidics
1/4-28 Female Straight Union (5-pack) - PTFE
This 1/4-28 Female union is designed to connect two male 1/4-28 threaded connectors in a straight line. Made from PTFE, it offers excellent chemical resistance and is ideal for extending tubing...

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Now: £38.80

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IDEX Health & Science
10-32 Coned Union Adapter
This 10-32 coned union adapter is designed to interface two 10-32 coned fittings. Manufactured in PEEK, allowing an excellent chemical resistance. Sold by pack of 1 unit. General The 10-32 coned...

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Now: £56.40

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Darwin Microfluidics
1/4-28 Male Straight Union (5-pack) - PPS
The 1/4-28 Male Union is a connector used to join two rigid tubing in microfluidic setups. Made from PPS plastic, it’s strong and resistant to chemicals. It fits 1/4-28 threaded fittings and comes in...

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Now: £46.40

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Darwin Microfluidics
10-32 Female Straight Union (5-pack) - PEEK
The 10-32 Female Straight Union is a fitting designed for extending the fluidic path in microfluidics systems. It ensures a leakage-free connection while offering excellent biocompatibility and...

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Now: £66.00

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Darwin Microfluidics
10-32 Female Elbow Connector - PEEK
The 10-32 Female Elbow Connector is a convenient fitting designed for microfluidic systems requiring an L-type flow path. It ensures a leakage-free connection for rigid tubing systems while offering...

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Now: £17.00

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