304 Stainless Steel KF Vacuum Tapered Reducer Three Card Flange Joint KF10 KF16 KF25 KF40 KF50 Vacuum Pipe Fittings K16/25/40/50F vacuum Conical three-fixture reducer 304 stainless steel quick fitting reducer vacuum fittings flange 30/40/55/75 Product Name: KF vacuum cone Reducer Material: 304 stainless steel Finish: Mirror finish + silky clean + precise size Operating temperature: 150 degrees (fluorine rubber) 80 degrees (nitrile rubber) Vacuum: 10-8 torr (1.33*10-6Pa) Product specification: KF-10 (chuck outer diameter 30mm) KF-16 (Chuck OD 30mm) KF-25 (Chuck OD 40mm) KF-40 (Chuck OD 55mm) KF-50 (Chuck OD 75mm) Characteristics: 1. High gloss: The pipe fittings are beautiful in appearance, and both inside and outside are polished by mirror 2. Machine finishing: precision welding, neat edge without burr, high vacuum without leakage. 3. Corrosion resistance: combination of nickel and chromium, acid and alkali resistance. 4,304 stainless steel: high hardness, hardness is twice that of copper, strong oxidation resistance. _x000D_