| 摘要 |
A self-contained, operative, valving unit which includes a valve body having inlet and outlet ports, and a rotatable valve plug is securely though removably housed within a valve housing having inlet and outlet ports which are permanently secured to pipes through which the fluid media to be controlled is conveyed to and from the housing, and wherein the entire valving unit, per se, is received within a valving-unit-receptive bore of the valve housing with its inlet and outlet ports in cooperative, aligned, fluid-tight relationship with respect to corresponding inlet and outlet ports interiorly of the valve housing whereby the flow of fluid media through the valve housing is controlled by the removable valving unit. |
