With newer 1-2 µm diameter particle packing materials, HPLC column technology is pushing the pressure limits of standard fittings. To meet this need, Upchurch Scientific® designed a new line of Ultra-High Performance Fittings that are rated to 28800 psi (1930 bar). These specially designed 10-32 stainless steel fittings work in standard 10-32 coned ports, with ferrule options for both 1/16" and 1/32" OD tubing.
Warning: At such high pressures, it is very important to ensure any fitting is tightened sufficiently to prevent possible connection failure. To achieve the maximum pressure rating for parts that use stainless steel fittings, 45 in·lbs. of torque is required.