F118-9P30 lantern restrictor is used for 12/10 F-M Slurry Pump, the F118-9 slurry pump Lantern restrictor is different the standard F118 lantern restrictor, it is made up of two parts. F118-9P30 Lantern Restrictor of slurry pump is made in plastic material.
Slurry pump lantern restrictor is one of shaft seal parts in full flow gland seal slurry pump where the flushing water is injected through. Slurry pump lantern restrictor is located between slurry pump impeller and packing ring, it works as a slurry pump lantern ring, but requires more flushing water.