Proper Hose Clamp Size

[Walter Schwab]

What are the standard rules, best practices, for using hose clamps. All stainless steel I know.

When should constant torque clamps be used?
When should two clamps be used back to back?
How much band overlap should there be (what size should be used)?
Any special clamps for the material/composition of the hose like using a linear clamp?
Any special clamps or considerations for the type of material passing through the hose (air, freshwater, seawater, diesel, gasoline, blackwater, oil)?
Any torque specifications for each type of clamp?
Guidelines for when a clamp should be replaced?

Topic

[Rob Schepis]

Nutdriver tight on worm gear clamps is all I have done for decades. We’ve covered this a few times by now. Do a few searches. For sure one using “nutdriver” as search term and then for a tool purchase if you wish search “valve wrench”

[Tony Athens]

Clamping techniques —- Some pics here that show what we think is the right way to clamp exhaust & log hoses.. As you look thru the various articles and pics on this site, you’ll see how we do it.. As to how tight and the type of clamp, I’ll let others post there long term experiences.. Personally I rarely use a “T” bolt clamps except is very selected places..

https://www.sbmar.com/articles/proper-technique-for-clamping-exhaust-hose/

https://www.sbmar.com/articles/everything-you-need-to-know-about-propeller-shaft-packings/

Tony

[Author]

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