Description

NPT (National Pipe Thread) seals are the most popular type of seal for pressure calibration systems in the U.S. and Canada. NPT male adapters have a taper thread that wedges into the female NPT adapter.

QC Hydraulics NPT hydraulic fittings are compatible with most manufacturers and are equivalent to fittings from Parker Hydraulics, Eaton Aeroquip, Weatherhead, Goodyear, and Gates Hydraulics.

Size Range:

1/8”-2”

Material:

Stainless Steel(SS 304, SS 316, SS 316L, SS 316Ti)

NPT Hydraulic Adapters available thread configurations:

  • NPT Male Adapters
  • NPT Female Couplings
  • NPT Male Female Elbow
  • NPT Male Female Tee
  • NPT Cross
  • NPT Bushing
  • NPT Male Plug
  • NPT Cap
  • NPT Nut

NPT Hydraulic Tube Fitting, Pressure Ratings

Pressure Ratings For Fittings With NPTF Pipe Threads And Adapter Unions
Nominal Pipe Size Threads Size  
Nom SAE Dash Size Nom Inch Tube O.D Dry Seal Pipe Thread(NPTF1) Male and Female Straight Pipe Thread(NPSM2) Female Swivels Working Pressures(Mpa)
-2 1/8 1/8-27 1/8-27 34.5
-4 1/4 1/4-18 1/4-18 27.5
-6 3/8 3/8-18 3/8-18 21
-8 1/2 1/2-14 1/2-14 21
-12 3/4 3/4-14 3/4-14 17
-16 1 1- 11 1/2 1- 11 1/2 14
-20 1 1/4  1 1/4-11 1/2  1 1/4-11 1/2 8
-24 1 1/2 1 1/2 11 1/2 1 1/2 11 1/2 7
-32 2 2-11 1/2 2-11 1/2 7

Please feel free to contact us if you have any inquiries

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