spouts step of spouted pouches(also named as spout gap),it is the prerequisite of using the spout pouches filler,however,it is not well known by the buyers who using spout pouch bags first time,so,what is it?

1-where is its location?

It is located between the nozzle and welding place of pouches.

2-what is a standard spout step(gap)?

3-what is its usage?

Let the standing pouch with spout can be fixed on the filling position of machine stably(or the u-slot).