Threaded unions & adapters

Connecting a wide variety of port designs

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  • English threaded adapters
  • Metric threaded adapters
  • National pipe threaded adapters
  • Low pressure unions
  • Low pressure bulkhead unions
  • Elbow connectors
  • Large bore unions

Port geometries

10-32 coned
10-32 flat-bottom
1/4-28 flat-bottom
M6x1 flat-bottom
5/16-24 flat-bottom
1/2-20 flat-bottom
1/8 NPT
1/4 NPT

English threaded adapters

Prod. No.*Description**IncludesThru-holeSwept VolumePressure Rating
6000-076PEEK Adapter, 5/16-24 C, M to 10-32 C, F-0.066" (1.70 mm)49.8 µL3,000 psi (207 bar)
P-135PEEK Adapter, 5/16-24 FB, F to 1/4-28 F-0.080" (2.05 mm)4.1 µL1,000 psi (69 bar)
P-627PEEK Adapter, 10-32 C, F to 1/4-28 FB, FF-3000.020” (0.50 mm)0.30 µL1,000 psi (69 bar)
P-681PCTFE Adapter, 5/16-24 FB, F to 1/4-28 FB, M-0.125" (3.20 mm)96.6 µL1,000 psi (69 bar)
P-684PCTFE Adapter, 1/2-20 FB, F to 1/4-28 FB, M-0.130" (3.30 mm)121.7 µL250 psi (17 bar)
P-718PCTFE Adapter, 5/16-24 FB, M to 1/4-28 FB, F-0.040" (1.00 mm)10.3 µL1,000 psi (69 bar)
U-659PEEK Adapter, 5/16-24 FB, F to 1/2-20 FB, FU-655, U-650Tapered***42.0 µL250 psi (17 bar)
U-665PEEK Adapter, 1/2-20 FB, F to 1/4-28 FB, F U-655, U-6500.063” (1.60 mm)6.6 µL250 psi (17 bar)
P-652PEEK Adapter, 1/4-28 FB, F to 10-32 C, M-0.030” (0.75 mm)6.7 µL1,000 psi (69 bar)
P-654PEEK Adapter, 1/4-28 FB, F to 10-32 C, M, Extra Long-0.030” (0.75 mm)9.5 µL1,000 psi (69 bar)
P-669-01PEEK Adapter, 10-32 C, F to 1/4-28 FB, M-0.040” (1.00 mm)6.6 µL1,000 psi (69 bar)
P-671PTFE Adapter, 1/4-28 FB, F to 1/4-28 FB, M-0.040” (1.00 mm)8.0 µL1,000 psi (69 bar)
P-672PEEK Adapter, 1/4-28 FB, F to 10-32 FB, M-0.050” (1.25 mm)11.4 µL1,000 psi (69 bar)
**F = Female (internal) threads; M = Male (external) threads; XL = extra long; C = Coned; FB = Flat-Bottom
***Thru-hole tapers from 0.188” (4.80 mm) to 0.125” (3.20 mm)

Metric threaded adapters

Prod. No.*Description**IncludesThru-holeSwept VolumePressure Rating
P-626PEEK Adapter, 10-32 C, F to M6 FB, FF-3000.020” (0.50 mm)0.3 µL1,000 psi (69 bar)
P-650PEEK Adapter, M6 FB, F to 10-32 C, M-0.030” (0.75 mm)6.7 µL1,000 psi (69 bar)
P-670PCTFE Adapter, M6 FB, F to 1/4-28 FB, M-0.030” (0.75 mm)2.6 µL1,000 psi (69 bar)
P-673PCTFE Adapter, 5/16-24 FB, F to M6 FB, M-0.040" (1.00 mm)9.9 µL1,000 psi (69 bar)
P-694PCTFE Adapter, 1/4-28 FB, F to M6 FB, M-0.040" (1.00 mm)11.3 µL1,000 psi (69 bar)
P-920-01PEEK Adapter, 10-32 C, F to M6 FB, M-0.040" (1.00 mm)8.0 µL1,000 psi (69 bar)
**F = Female (internal) threads; M = Male (external) threads; XL = extra long; C = Coned; FB = Flat-Bottom

National pipe threaded adapters

Prod. No.*Description**ColorTubingIncludesThru-holeSwept VolumePressure Rating
U-510PEEK 1/8” NPT, M to 1/4-28 FB, F AdapterRed1/8" ODP-308, P-300 0.062” (1.60 mm)17.3 µL500 psi (34 bar)
U-514PEEK 1/8” NPT, M to 5/16-24 FB, F AdapterNatural3/16” ODP-132, P-1330.125” (3.2 mm)70.4 µL500 psi (34 bar)
U-500PEEK 1/4” NPT, M to 1/4-28 FB, F AdapterRed1/8" ODP-308, P-3000.062” (1.60 mm)17.3 µL500 psi (34 bar)
U-504PEEK 1/4” NPT, M to 5/16-24 FB, F AdapterNatural3/16” ODP-132, P-1330.125” (3.2 mm)70.4 µL500 psi (34 bar)
**F = Female (internal) threads; M = Male (external) threads; XL = extra long; C = Coned; FB = Flat-Bottom

Low pressure unions

Low pressure bulkhead unions

Elbow connectors

Large bore unions

Resources

Consult the Periodic Table of Analytical Fittings for a quick overview, the Fittings 101 for guidance and learning, and the IDEX Catalogue for product details, or contact Biotech Fluidics for expert advice.

Periodic table of
analytical fittings

Fittings 101
guide booklet

Complete IDEX
catalogue

Any questions?

If you have any inquiries about our products and services, we’re here to help.

Phone: +46 300 56 91 80
Email: info@biotechfluidics.com