sanity check please

[tonkadawg]

1/2" bulk head requires 1 1/8" hole - right???

[L8 2 RISE]

depends on the bulkhead you go with. Best bet is to look at the bulkhead online and find out from that.

[tonkadawg]

threaded or slip, should be the same - or at least I would think. Looking over at marinedepot.com, both are 1 1/8" but I just wanted someone to make me feel better about it.

[MLazar]

You are correct about the bulkhead and hole size.

 

1/2" bulkhead requires 1-1/8" diameter hole

3/4" bulkhead requires 1-7/16" to 1-1/2" diameter hole

1" bulkhead requires 1-3/4" diameter hole

 

Jon

[Jon Lazar]

Yeah, what "she" said.

 

You are correct about the bulkhead and hole size.

 

1/2" bulkhead requires 1-1/8" diameter hole

3/4" bulkhead requires 1-7/16" to 1-1/2" diameter hole

1" bulkhead requires 1-3/4" diameter hole

 

Jon

[tonkadawg]

 

hahahaha cool thanks guys!

[dschflier]

That is trued for most standard bulkheads but for example Hayward fittings from what I recall need a slightly larger hole.

[tbittner]

Heavy duty bulkheads require a bigger hole. I HIGHLY recommend using heavy duty bulkheads.

[tonkadawg]

what's the difference between the standard and heavy duty? It sounds like I can start with 1 1/8" and dremel out if needed

[tbittner]

"Regular" bulkheads are made with "cheap" plastic and the heavy duty are Schedule 80. Much thicker pieces and much better threads. You won't strip the threads on a heavy duty bulkhead like you can on regular bulkheads. But then again, you shouldn't tighten them down with a wrench anyway. Hand tighten, and then 1/8th turn with a wrench if it dribbles a bit.

[Jon Lazar]

Where do you get your heavy duty bulkheads?

[tbittner]

If I need them today, I'll run up to Winchester to Solenbergers. I believe that BRK sells them too. Otherwise, I order from Savko. They sell pretty good gate valves too. They're a whole lot less expensive than Solenbergers.

 

 

 

http://www.solenbergers.com/

http://www.savko.com/

Edited August 3, 2008 by tbittner

[tonkadawg]

thanks for the info - didn't realize that the HD were Sched. 80 - definitely the way to go.

[Larry Grenier]

On a related issue, if you're in this hobby you can't posibly be sane.