Originally Posted By: wgtoys
Purolator's bypass design is actually very elegant. Look at how much less space it takes up in the can (basically none!) compared to the clumsy Wix bypass gadget which they stick in the can below the filter.
And it's basically impossible to test the WIX style of bypass valve because of all the tiny holes that act as the pressure area. The spring inside of it is very stiff BTW due to the large active pressure area of the valve. I don't really like that rubber flap seal on it either.
I'm sure it works fine, but like you, I don't like it taking up media real estate.
Purolator's bypass design is actually very elegant. Look at how much less space it takes up in the can (basically none!) compared to the clumsy Wix bypass gadget which they stick in the can below the filter.
And it's basically impossible to test the WIX style of bypass valve because of all the tiny holes that act as the pressure area. The spring inside of it is very stiff BTW due to the large active pressure area of the valve. I don't really like that rubber flap seal on it either.
I'm sure it works fine, but like you, I don't like it taking up media real estate.