CBM Patent Consulting, LLC
Automatic back-pressure valve for use in supercritical fluid chromatographic system
An automatic back-pressure valve comprises a spring support (1), an ejector rod spring (2), an ejector rod (3), a piston rod (4), a guide band (5), a cylinder body (6), an O-ring seal ring A (7), an O-ring seal ring B (8), a piston rod spring (9), a cylinder cover (10), a guide sleeve (11), a conical ceramic element (12), a seal ring (13), a sealing base (14), a valve body (15), a screw (16) and a positioning sleeve (17).
JIANGSU HANBON SCIENCE & TECHNOLOGY CO., LTD.
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Yan Jie Zhiling Zhong
Zhang Liu Li Yan