Should you use thread sealant on hydraulic fittings?

You don’t need or should use any teflon tape or pipe dope on hydraulic fittings. Neither are designed for those kinds of pressures and using them could create a less then perfect mating between connection surfaces causing more harm than good.

How do you stop a hydraulic fitting from leaking?

Use Reliable Connectors Connectors which incorporate an elastomeric seal such as UN-O-ring, BSPP, ORFS and SAE four-bolt flange offer far superior seal reliability. So for leak-free reliability, replace pipe-thread connectors with a type that incorporates an elastomeric seal, if possible.

Which Loctite for hydraulic fittings?

Thread Sealant – medium strength. For fine threads in hydraulic, pneumatic and general fittings.

Is Blue permatex the same as blue Loctite?

But really, there isn’t much difference between the whole lineup of Permatex or Loctite threadlockers. They even share the same color scheme for the strength/hold of their threadlockers: Purple for low strength. Blue for medium strength.

What do you put on hydraulic threads?

Loctite 5452 thread sealant is for use on high-pressure hydraulic and pneumatic metal fittings. It cures four times faster than anaerobic sealants on stainless steel or inert metals. It works on any size NPT, O-ring boss, or JIC fitting, and prevents rotation and leakage.

Why is my hydraulic fitting leaking?

Most hydraulic hose leaks are caused by using the wrong type of fitting or installing them incorrectly. Additionally, if an O-ring is missing or damaged or if over-under-torquing the connections has occurred, the seal may not be aligned correctly and even worse, the threads might be damaged.

Can you over tighten NPT fittings?

Over-tightening the connection can easily split the female portion of a pipe thread connection; this is especially an issue when installing male pipe thread fittings into cast iron ports on valves, motors, and cylinders.

Which is better permatex or Loctite?

A small difference between this Loctite and the 5183 counterpart is the gap support: Loctite 518 fills gaps up to 0.25mm (0.01”) while Permatex 5183 goes wider with gap support of up to 0.38mm (0.015”). Both of these are anaerobic gasket makers/flange sealants. You want to use them with metal parts and machinery.

Is permatex just as good as Loctite?

The Loctite Heavy Duty 242 Blue Threadlocker is actually identical to the Permatex 24200. Totally interchangeable. On the other hand, the Loctite 243 Medium Strength is a noteworthy product, which Permatex doesn’t match. It provides a higher tolerance to oil and works well on all types of metals.

Do an fittings need thread sealant?

You don’t use any sealant on a an fitting. If it is leaking then the face of either the female or male flare is defective and needs replaced.