Maintenance 1½” - 8” hydrometers, Hydrometer removal from pipeline, 1½” and 2” models – Baseline Systems BHM Series Hydrometer User Manual
Page 24: 3” - 8” models

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• Hydrometers Operation and Maintenance Manual
Maintenance 1½” - 8” Hydrometers
HYDROMETER REMOVAL FROM PIPELINE
The hydrometer is designed for easy site repairs. Removal from the pipeline is not required for
dis-assembly and most repairs. The following removal instructions are included
in the unlikely event that the hydrometer needs to be disassembled and repaired in the shop.
1½” and 2” Models
The 1½” model may only be attached, using a coupling, to a male threaded pipeline.
Coupling Connection
• Unscrew the coupling nuts on both sides of the hydrometer counterclockwise.
• Slide the coupling nuts away from the hydrometer and remove the hydrometer from the
pipeline. Retain the coupling gaskets.
Direct Connection
• If the hydrometer is attached directly to the pipeline, unscrew the pipeline on both sides of the
hydrometer.
• Remove the hydrometer from the pipeline.
3” - 8” Models
• Unscrew and remove the bolts from the flanged connections on both sides of the hydrometer.
• Remove the hydrometer from the pipeline.
• Inspect the gaskets and replace as necessary.