Image: Older-generation snorkel shutoff valves
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Description: Three types of older-generation snorkel shutoff valves are illustrated. Type A: A shutoff valve using a ping-pong ball in a cage to prevent water ingress when submerged. Type B: A shutoff valve using a hinged "gamma" valve to prevent water ingress when submerged.
Type C: A shutoff valve using a sliding float valve to prevent water ingress when submerged.
Author: Helmardine
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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