Changing coupler on implement (thread sealant question)

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KB1299

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Aug 15, 2023
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I just received new flat face couplers that I will be connecting to my grapple. They have NPT threads so I am trying to identify what sealant to use. I am new to hydraulics and trying to educate myself. I have read not to use tape as you could end up with pieces getting into the system.

Is there a consensus on a recommended sealant to use for NPT threads or is this just like asking what the best greases is?
 
TheOldHokie

TheOldHokie

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KB1299 said:
I just received new flat face couplers that I will be connecting to my grapple. They have NPT threads so I am trying to identify what sealant to use. I am new to hydraulics and trying to educate myself. I have read not to use tape as you could end up with pieces getting into the system.

Is there a consensus on a recommended sealant to use for NPT threads or is this just like asking what the best greases is?
Click to expand...
Kubota uses tape. If that scares you lots of people think Loctite 545 is safe and easy.

Dan
 
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Thunder chicken

Thunder chicken

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Dec 29, 2019
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We have a Permatex brand at the local Napa or auto parts that seems to work just fine. Sometimes I'll use both tape and sealant if it's a hard to reach fitting.
 
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