KF Flange Reducers

KF reducing nipples have a length of tube with KF flanges of different sizes welded on each end.

Nor-Cal Products, Inc.

KF Flange Reducing Nipples

KF reducing nipples made from 304 stainless steel, both flanges and tube portion. 316 L available upon request.These KF reducers are designed to hold ultra-high vacuum, (UHV) with a metal seal, or a high vacuum, (HV) with an O-ring. In a typical application the O-ring is mounted on a centering ring aligning the flanges and holding the O-ring in place.

Vacuum range is > 1x10 E-11 Torr for ultra high vacuum, UHV with an EVAC metal seal. With an elastomer seal vacuum range is > 1x10 E-8 Torr, high vacuum, HV applications.

Tube O.D.LengthFlange 1Flange 2MaterialMfg. P/N.Encole P/N.Price
0.750 inch1.300 inchKF25KF16AISI 3042NR-NW-25-16180A1000$47.45each
0.750 inch1.300 inchKF40KF16AISI 3042NR-NW-40-16180A1001$69.65each
1.000 inch2.180 inchKF40KF25AISI 3042NR-NW-40-25180A1002$55.00each
0.750 inch1.300 inchKF50KF16AISI 3042NR-NW-50-16180A1003$61.35each
1.000 inch2.180 inchKF50KF25AISI 3042NR-NW-50-25180A1004$61.35each
1.500 inch2.550 inchKF50KF40AISI 3042NR-NW-50-40180A1005$61.35each