| 摘要 |
A diaphragm-sealed valve having stops, mechanical means placed between a top and bottom plate to control assembled thickness and/or the amount of compression applied to the diaphragm which is placed between the top and bottom plate when the diaphragm-sealed valve is assembled together. The stops allow adequate compression to assure sealing while preventing overcompression because the stops prevent any further movement of the plates towards each other. Overcompression can result in reduced diaphragm life, diaphragm damage, areas of entrapment for contaminates and increases the force required to seal between the valve inlet and outlet.
|
