Vacuum Weld Fittings
Sanitary Fittings
Vacuum Weld Fittings are a series of vacuum fittings designed to join vacuum flanges, tubing, or other fittings by welding. These fittings provide a permanent, leak-tight connection, which is particularly important in high or ultra-high vacuum systems where minimizing contamination and maintaining the integrity of the vacuum are critical.
We offer a wide range of high-quality vacuum weld fittings, including 45-degree and 90-degree elbows, equal tees, reducers, and more. They are made from stainless steel 304 or 316L, providing excellent corrosion resistance, high tensile strength, and durability.
Material： Stainless Steel 304, 316L
Size： 3/4" ~ 6"
Vacuum Range： Down to 10-13 Torr
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45° Short Elbow
Model No. Tube OD A B T 2WK-075 3/4" 19.05 8.0 1.65 2WK-100 1" 25.4 15.9 1.65 2WK-150 1.5" 38.1 23.8 1.65 2WK-200 2" 50.8 31.8 1.65 2WK-250 2.5" 63.5 39.7 1.65 2WK-300 3" 76.2 47.6 1.65 2WK-400 4" 101.6 63.5 2.10 -
45° Long Elbow
Model No. Tube OD A B T 2KS-075 3/4" 19.05 19.3 1.65 2KS-100 1" 25.4 30.2 1.65 2KS-150 1.5" 38.1 41.3 1.65 2KS-200 2" 50.8 58.7 1.65 2KS-250 2.5" 63.5 76.2 1.65 2KS-300 3" 76.2 93.7 1.65 2KS-400 4" 101.6 122.2 2.10 -
90° Short Elbow
Model No. Tube OD D L T 2WC-075 3/4" 19.05 28.6 1.65 2WC-100 1" 25.4 38.1 1.65 2WC-150 1.5" 38.1 57.2 1.65 2WC-200 2" 50.8 76.2 1.65 2WC-250 2.5" 63.5 95.2 1.65 2WC-300 3" 76.2 114.3 1.65 2WC-400 4" 101.6 152.4 2.10 2WC-600 6" 152.4 228.6 2.77 -
90° Long Elbow
Model No. Tube OD D L T 2S-100 1" 25.4 52.4 1.65 2S-150 1.5" 38.1 74.6 1.65 2S-200 2" 50.8 103.2 1.65 2S-250 2.5" 63.5 131.8 1.65 2S-300 3" 76.2 160.3 1.65 2S-400 4" 101.6 211.1 2.10 -
Long Equal Tee
Model No. Tube OD D L L1 T 7WWW-075 3/4" 19.05 34.5 69.0 1.65 7WWW-100 1" 25.4 47.6 95.2 1.65 7WWW-150 1.5" 38.1 57.2 114.3 1.65 7WWW-200 2" 50.8 76.2 152.4 1.65 7WWW-250 2.5" 63.5 76.2 152.4 1.65 7WWW-300 3" 76.2 82.5 165.1 1.65 7WWW-400 4" 101.6 98.4 196.8 2.10 7WWW-600 6" 152.4 127.0 254.0 2.77 -
Reducing Tee
Model No. Tube OD B C L L1 T 7RWWW-100-075 1"x3/4" 25.4 19.05 48.2 33.7 1.65 7RWWW-150-075 1.5"x3/4" 38.1 19.05 57.2 48.2 1.65 7RWWW-150-100 1.5"x1" 38.1 25.4 57.2 54.0 1.65 7RWWW-200-075 2"x3/4" 50.8 19.05 76.2 54.4 1.65 7RWWW-200-100 2"x1" 50.8 25.4 76.2 60.3 1.65 7RWWW-200-150 2"x1.5" 50.8 38.1 76.2 63.5 1.65 7RWWW-300-250 3"x2.5" 76.2 63.5 82.5 82.5 1.65 7RWWW-400-200 4"x2" 101.6 50.8 98.4 101.6 2.10 7RWWW-400-250 4"x2.5" 101.6 63.5 98.4 95.3 2.10 7RWWW-400-300 4"x3" 101.6 76.2 98.4 95.3 2.10 7RWWW-600-300 6"x3" 152.4 76.2 127.0 120.0 2.77 7RWWW-600-400 6"x4" 152.4 101.6 127.0 123.8 2.77 -
4-way Cross
Model No. Tube OD D L L1 T 9WWW-075 3/4" 19.05 69.0 34.5 1.65 9WWW-100 1" 25.4 95.2 47.6 1.65 9WWW-150 1.5" 38.1 114.3 57.2 1.65 9WWW-200 2" 50.8 152.4 76.2 1.65 9WWW-250 2.5" 63.5 152.4 76.2 1.65 9WWW-300 3" 76.2 165.1 82.5 1.65 9WWW-400 4" 101.6 196.8 98.4 2.10 9WWW-600 6" 152.4 254.0 127.0 2.77 -
Concentric Reducer
Model No. Tube OD A B L T 31W-100-075 1"x3/4" 25.4 19.05 35.0 1.65 31W-150-075 1.5"x3/4" 38.1 19.05 60.3 1.65 31W-150-100 1.5"x1" 38.1 25.4 60.3 1.65 31W-200-100 2"x1" 50.8 25.4 60.3 1.65 31W-200-150 2"x1.5" 50.8 38.1 60.3 1.65 31W-250-150 2.5"x1.5" 63.5 38.1 60.3 1.65 31W-250-200 2.5"x2" 63.5 50.8 60.3 1.65 31W-300-200 3"x2" 76.2 50.8 92.0 1.65 31W-300-250 3"x2.5" 76.2 63.5 92.0 1.65 31W-400-200 4"x2" 101.6 50.8 92.0 2.10 31W-400-250 4"x2.5" 101.6 63.5 92.0 2.10 31W-400-300 4"x3" 101.6 76.2 92.0 2.10 31W-600-300 6"x3" 152.4 76.2 152.4 2.77 31W-600-400 6"x4" 152.4 101.6 152.4 2.77 -
Conical Reducer
Model No. Tube OD A B L T B-31W-100-075 1”x3/4" 25.4 19.05 35.0 1.55 B-31W-150-075 1.5”x3/4” 38.1 19.05 60.3 1.65 B-31W-150-100 1.5"x1” 38.1 25.4 60.3 1.65 B-31W-200-100 2"x1“ 50.8 25.4 60.3 1.65 B-31W-200-150 2"x1.5" 50.8 38.1 60.3 1.65 -
Welding Bellow
TUBE OD LENGTH 3/4” CUSTOM-MADE 1” CUSTOM-MADE 1.5” CUSTOM-MADE 2” CUSTOM-MADE 2.5” CUSTOM-MADE 3” CUSTOM-MADE 4” CUSTOM-MADE