Torque spec for anodes?

[mkrawats]

How much torque should I apply when installing the 6 anodes on my QSC 8.3 heat exchanger, aftercooler, and oil cooler?  Each anode brass cap is coated with Rectorseal  T+2.

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[Rob Schepis]

NPT threads such as anode caps are a tapered fit so it’s about the mating of the male/female connection, not the stretching of a bolt to put it in tension as with machined threads.  And then add in the variables created by different pipe dopes and different metal materials of the male vs. female component.  Gotta do it by feel.  If you are afraid of overtightening use a stubby wrench or ratchet and tighten them down pretty good.  

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