| 1. | Primary cooling is accomplished by dissipating heat to the valve seats.
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| 2. | The flapper valve seats, the tank fills up and the water shuts off.
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| 3. | Screwed-in plug bushes and valve seats were made from aluminium-bronze.
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| 4. | Iron cylinder heads most often have integral iron valve seats.
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| 5. | Another design aspect is the ball valve seat which is critical for performance stability.
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| 6. | Remove the neoprene valve seats and springs by prying them loose with a screwdriver.
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| 7. | A side effect of the lead additives was protection of the valve seats from erosion.
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| 8. | Valve seats, seals, and stem packing may be nonmetallic.
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| 9. | There are several ways in which a valve seat may be improperly positioned or machined.
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| 10. | This valve seat closes first, before the mitre valve, and shuts off the fuel flow.
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