Flow Indicator
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Description

Designed for 1" ID tube to provide a visual confirmation that fluid is flowing through the lines. This was designed to be used with an engine dyno coolant line that is low pressure and operates at temperatures around 200 degrees Fahrenheit. Cost Savings Designed using FreeCAD OS software to reduce cost. The desired fitting is able to be interchanged within the housing to allow for male barbed or male threaded inlet and outlet. Material: Housing: $1.75 Barbed Fitting: $0.27 x 2 Wheel: $0.27 Lens cover: TBD Link - Similar products that accommodate a 1" ID tube cost around $140 (https://shop.prmfiltration.com/products/prm-sight-flow-indicator-1-inch-304-stainless-steel-ptfe-seal-and-impeller?variant=30079524339775&currency=USD&keyword=&utm_medium=ppc&utm_term=&utm_campaign=GS+-+Sight+Flow+Indicators&utm_source=adwords&hsa_kw=&hsa_cam=6542335407&hsa_ver=3&hsa_acc=5711099154&hsa_ad=385040771422&hsa_grp=81191807209&hsa_src=g&hsa_mt=&hsa_tgt=pla-819168994300&hsa_net=adwords&gclid=Cj0KCQiA-4nuBRCnARIsAHwyuPrZ3vEU40zZrIrZ0Kxh4uqWkhQSrbwRmCaBukqYKsUUcEljw99_GG4aAjfZEALw_wcB). $140 - ($1.75 + $0.27 x 3) = $137.44 Orientate the spinning wheel into the housing with the curved edge facing against the incoming fluid flow.

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Source creator
Trfranck
Source license
Public Domain
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Flow Indicator

From NIH 3D
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Category

learning

License

CC0

Published

9/15/2026

Availability

free on NIH 3D