1 reply to this topic

[Super0dp]

So in the quest to make an SvT4B, I acquired a pump. The pump has a ball needle attachment and this needle just so happens to fit it the tubing I'm using.
My question is will I get higher pressures or faster filling of the tank if I use the needle attachment or just stick with the tubing?
The needle has a really small opening, maybe 3/4 of a milimeter or larger. The tubing I'm using has roughly a 1 1/2 milimeter (judging by the needle size) inner diameter.
I can make an adapter from a 1/4 OD 1/8 ID standard barbed fitting from Mc Master. This will provide maybe 1 milimeter of room around the needle.
So will the needle provide more preasure or more airflow? Or will the tubing alone be better.

Edited by Super0dp, 08 July 2013 - 06:49 PM.

[DartSlinger]

The needle will not provide more pressure or airflow: it will actually decrease airflow. The larger the inner diameter of the tubing, the higher the possible airflow. You should just use the tubing.