Check Valve Cartridges for HPLC

Chonghong provides reliable and perfect quality precision check valves for the HPLC system. The seating area of the ball is finely polished and is perfectly matched with the seat to ensure a leak free adjustment.

Every part is 100% measured under a pressure of 6 bars of Nitrogen with a dedicated device with 3 bubbles and 12 bubbles, Both testing and packing are carried out in a very clean room environment, over-pressured.