O-ring question?

[rakpix]

I know this must have been asked & answered once before. But, a search returned only irrelevant threads so ... here goes:

Does anyone here know the durometer and the dimensions of the little o-ring that is hidden inside the female end of a standard low-preassure hose (pictured below?) And do you need any special tools to replace it?



Thanks!

 

[Mr Carcharodon]

Likely a 2-010 in size with a durometer of around 75. Nitrile, EPDM and Viton are all commonly used. Just a pointy o-ring pick to get it out. If you end up having to stick the o-ring pick into the o-ring then you have to replace it. Work the new one in with something not sharp like an orange stick.

 

[kwinter]

I don't know what an orange stick is, but I have no problem just stretching a new one over the insert. Removing old ones is best done with a pick with a slight curve at the end. It is commonly known as a #10 o-ring (or 010). And since it is low pressure, duro 70 or 75 is appropriate.

 

[rakpix]

I don't know what an orange stick is, but I have no problem just stretching a new one over the insert. Removing old ones is best done with a pick with a slight curve at the end. It is commonly known as a #10 o-ring (or 010). And since it is low pressure, duro 70 or 75 is appropriate.

Is this considered a dynamic o-ring? I ask, because the only 75 durometer o-rings I've used have been the 003 rings on a high-pressure spindle. Those are dynamic o-rings and have to be lubricated.

Most of the low pressure o-rings I've used (such as the 011 o-ring the male end of a low-pressure hose) are made with 90 durometer.

 

[kwinter]

You've got it backwards. The 003 o-ring on the spindle is definitely a high pressure use and should be 90 duro. Low pressure applications use softer 70 or 75 duro. As for dynamic vs static, the second stage does swivel a bit. I lube those 010 rings, if for no other reason than it makes them much easier to put on.


iPhone. iTypo. iApologize.

 

[halocline]

It's definitely a dynamic o-ring, 70-75 duro is fine.