Need bulkhead help

Murminator · #1 06-15-2006, 10:18 PM

ok so I'm starting to do my plumbing I have everything sched40 my bulkheads have 1 1/4" OD threads so I got 1 1/4" ID fittings but it is like they are the wrongs threads they will on screw on a couple threads befor they tighten up and I have to use the vice to unscrew it

Does it need a little lube?hmmmm...I have a thread guage measurer with my tap set I'm going to measure the threads and get back

The tank came with the bulheads it's a marineland cornerflo 90

mark · #2 06-15-2006, 11:10 PM

When planning out my tank, found the outside thread of a bulkhead is made for the nut only, it's not the same as a threaded fitting (pipe thread (tapered?) vs standard).

Seems the connection to the bulkhead is to be internal only, either threaded or slip, not over the outside. The only exception I found where you would go over the outside was bard type bulkheads common in hydroponics.

Denis · #3 06-16-2006, 03:01 AM

For sure those outside treads are just for the nut, I also found out the hard way. Sounds like you got a 1" bulkhead.

Murminator · #4 06-16-2006, 03:24 PM

Thanks for the help

KrazyKuch · #5 06-18-2006, 04:04 AM

Finally getting brave enought to plumb your tank up!

Murminator · #6 06-19-2006, 03:31 PM

Quote:

Originally Posted by KrazyKuch

Finally getting brave enought to plumb your tank up!

Yup got as far as the bulkheads