From the valve plug guide

Can be divided into top-oriented, top and bottom guide · sleeve guide, stem guide and seat-oriented type. To stainless steel pneumatic cylinders
Fluid control and off, the valve body guide is very important, spool guide for the valve body and the valve seat on the complexes. Driven by the top valve cover or the valve body, a guide sleeve or packing structure-oriented; top and bottom guide valve cover and valve cover guide sets oriented, and requires the use of the adjusting mechanism of the seat valve and requires precise oriented top and bottom guide ; sleeve guide with the outer surface of the valve body with the inner surface of the sleeve guide, this guide since in performance, it is possible to accurately realize the valve body and the valve seat on; lid on the valve stem guide with guide sleeve and valve seat rings, with the sleeve and the valve stem oriented; seat orientation in the small flow control valve seat directly in.steam solenoid valves