Adapter Fittings

Three different body sizes are available in the Adapter Fittings to accommodate tubing sizes ranging from 1/8” ID to 3/4” ID. These adapters are available with National Pipe Threads (NPT).

  • Non-magnetic springs are available for MRI compatibility
  • Safety slide release eliminates accidental disconnects
  • An audible click confirms a correct connection
  • Autoclavable materials available
  • Radiation stable
  • Available cleanroom manufacturing
  • Recessed mating features protect contact surfaces
  • Smaller overall size with an optimized flow path
  • Ergonomic design
  • USP class VI complaint
  • Spring-Free Flow Path® coupler
See Adapter Fittings
Adapter Fittings Male and Female
Adapter Diagrams
Adapter Fittings (Dimension in Inches)
Equivalent Tubing Size Adapter Size A B C D E F G H
1/8″ NPT 1/8″ 3.04 1.96 0.90 0.84 2.09 1.44 1.90 1.46
3/16″ NPT 1/8″ 3.04 1.96 0.90 0.84 2.09 1.44 1.90 1.46
1/4″ NPT 1/4″ 3.62 2.13 1.12 0.99 2.41 1.57 2.23 1.58
5/16″ NPT 1/4″ 3.62 2.13 1.12 0.99 2.41 1.57 2.23 1.58
3/8″ NPT 1/4″ 3.62 2.13 1.12 0.99 2.41 1.57 2.23 1.58
1/4″ NPT 3/8″ 3.62 2.13 1.12 0.99 2.42 1.57 2.23 1.58
5/16″ NPT 3/8″ 3.62 2.13 1.12 0.99 2.42 1.57 2.23 1.58
3/8″ NPT 3/8″ 3.62 2.13 1.12 0.99 2.42 1.57 2.23 1.58
1/2″ NPT 1/2″ 4.63 2.80 1.50 1.32 3.02 1.93 3.00 2.22
5/8″ NPT 1/2″ 4.63 2.80 1.50 1.32 3.02 1.93 3.00 2.22
3/4″ NPT 1/2″ 4.63 2.80 1.50 1.32 3.02 1.93 3.00 2.22
Valved Assembly Weights (gr)
Female Assembly Male Assembly
Equivalent Tubing Size PP PVDF GFBN PP PVDF GFBN
1/8″ 8 13 12 4 7 6
3/16″ 8 13 12 4 7 6
1/4″ 11 19 17 6 9 9
5/16″ 11 19 17 6 9 9
3/8″ 11 19 17 6 9 9
1/2″ 27 45 41 15 27 23
5/8″ 27 45 41 15 27 23
3/4″ 27 45 41 15 27 23
Open Assembly Weights (gr)
Female Assembly Male Assembly
Equivalent Tubing Size PP PVDF GFBN PP PVDF GFBN
1/8″ 8 13 12 2 4 3
3/16″ 8 13 12 2 4 3
1/4″ 10 18 16 3 6 4
5/16″ 10 18 16 3 6 4
3/8″ 10 18 16 3 6 4
1/8″ 24 42 37 9 18 14
5/8″ 24 42 37 9 18 14
3/4″ 24 42 37 9 18 14

Enquiry Submission

For quotes, questions, or comments, complete this form to be contacted by one of our representatives. The part number of the current configuration will be displayed with your message.
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