Vacuum Fittings
Below are the sizes for the diameters of the various NW, QF, KF and ISO vacuum fittings. We have included a file you may download that shows, to scale, the various sizes. This chart also lists the physically measured diameters of the flange so you can use it to review what you have there used a ruler or calipers. There is typically enough differentiation in the size of the diameters of the flange compared to other sizes of flanges to easily determine one NW size from another by simply by measuring with a ruler, scale or calipers. Exceptions are some of the oddballs. The NW10 size, which is not often used, is many times satisfied with standard NW16 parts.-
NW50 X 1.500" Male National Pipe Tap (MNPT) Aluminum (1 1/2" NPT)
$ 95.10$ 100.11 -
NW50 X 1.250" Male National Pipe Tap (MNPT) Aluminum (1 1/4" NPT)
$ 95.10$ 100.11 -
NW50 X 1.000" Male National Pipe Tap (MNPT) 304 Stainless Steel (1" NPT)
$ 123.63$ 130.14 -
NW50 X 1.000" Male National Pipe Tap (MNPT) Aluminum (1" NPT)
$ 76.08$ 80.08 -
NW50 X .750" Male National Pipe Tap (MNPT) Aluminum (3/4" NPT)
$ 66.57$ 70.08 -
NW50 TO NW16 Conical Adapter 304 Stainless Steel
$ 64.59$ 68.00 -
NW50 TO NW40 Conical Adapter Aluminum
$ 79.88$ 84.09 -
NW50 TO NW25 Conical Adapter Aluminum
$ 53.97$ 56.82 -
NW50 TO NW16 Conical Adapter Aluminum
$ 55.62$ 58.56 -
NW50 Stub Aluminum
$ 26.64$ 28.04 -
NW50 Stub 304 Stainless Steel
$ 41.85$ 44.05 -
NW50 Port Cover Plastic
$ 19.95$ 21.00 -
NW50 Port Cover Aluminum
$ 18.07$ 19.02 -
NW50 Port Cover 304 Stainless Steel
$ 26.64$ 28.04 -
NW50 Weld Stub Flange 2" OD Aluminum Accepts 2" Tubing
$ 28.52$ 30.03 -
NW50 Weld Ring 2" ID 304 Stainless Steel Accepts 2" Tubing
$ 34.24$ 36.05 -
NW50 X 12.60" Long Nipple 304 Stainless Steel
$ 122.19$ 128.63 -
NW50 X 03.15" Long Nipple 304 Stainless Steel
$ 110.33$ 116.13 -
NW50 Instrument Adapter Swagelok Male to Tubing
From $ 142.65 - $ 266.31