Purging Operation Responsibilities

Question 1

How tall should a vent stack be at a minimum?

Answer 1

7’

Question 2

How far away should a vent stack be from the purge point?

Answer 2

10’ from ignition sources

10’ from building openings

25’ from mechanical air intake openings

Question 3

Vent stacks must be properly _____ to avoid any possible charge build up.

Answer 3

Grounded

Question 4

The size of the vent stack should match the size of the pipeline, TRUE or FALSE?

Answer 4

TRUE

Question 5

For 1” vent stacks, the tap/port can be as small as ______

For 2” vent stacks, the tap/port can be as small as ______

Answer 5

3/4” , 1 1/4”