A closer look at the latch system that holds the Niskin lids together. The top Niskin bottle lid is also connected to the bottom lid via rubber tubing, creating tension inside the bottle that will ensure both lids close simultaneously.
Latch System
Image courtesy of NOAA Ocean Exploration, 2021 EM 304 Sea Acceptance Testing and Mapping Shakedown. Download larger version (jpg, 2.7 MB).
A closer look at the latch system that holds the Niskin lids together. The top Niskin bottle lid is also connected to the bottom lid via rubber tubing, creating tension inside the bottle that will ensure both lids close simultaneously.
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