Schedule 80 vs Schedule 40 bulkheads?

jmccalip · 01/19/2006, 09:34 AM

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I just ordered a Schedule 40 1 1/2" bulkhead off marinedepot to connect to my panworld 50px-x. I was wondering if I should upgrade to a Schedule 80? Is it worth it for low pressure aquarium plumbing? Thanks

BTW: I havn't drilled the hole yet, but I would be mad if I wasted $8.50 on this bulkhead....

DHyslop · 01/19/2006, 09:48 AM

I haven't used an 80 but I understand the machining is better (less leaking) and they're more robust (less prone to cracking). The return on my 75 goes through a bulkhead, and I'm having trouble with my rigid plumbing putting a bit of torque on it and the gasket leaking. I think the best solution for me is to switch it over to spaflex, because I don't want to take the whole thing down and drill out a larger hole for a schedule 80 bulkhead.

Dan

jmccalip · 01/19/2006, 11:05 AM

Well then mine should be OK. The bulkhead will connect directly to the pump(well, 6" of 1.5" tubing).

manderx · 01/19/2006, 11:55 AM

i'd want 80 if i was threading into the flange side of the fitting (a bit too tight and/or too much tape can split them). otherwise, most people go with 80 just because they are a bit sexier looking.

xtrstangx · 01/19/2006, 06:00 PM

I'm going with all Schedule 80's on my new tank. I don't want to have a bulkhead leak when I'm on vacation/out of town and let 100+ gallons of water go on the floor.

If its already drilled and you can't drill it out more, make sure you don't twist the bulkhead or torque it funny.

javajaws · 01/19/2006, 07:05 PM

If you have a choice, definitely go with 80. The sched 40 ones just break way too easy during installation. Talk about wasting $8.50 the fast way...

jmccalip · 01/19/2006, 07:44 PM

Would a double threaded schedule 80 work with all my schedule 40 parts? With such low PSI though, I just don't see how schedule 40 wouldn't work. I'm kinda tight on money right now, couldn't I just drill the hole out later for a larger bulkhead? Al I have to do is make a wood jig to hold it in place.

rsteagall · 01/19/2006, 07:44 PM

most people have the trouble of overtightening, thats why it breaks thus why the suggestion is to get sch 80.

javajaws · 01/19/2006, 08:12 PM

Yeah...it has nothing to do with water pressure...

jmccalip · 01/19/2006, 08:14 PM

I hand tightened the smaller 1" one(schedule 40), and it never felt like it was going to break. If seals are a probelm I can just get some EDPM ones off mcmaster for like $0.50 since my brother orders from there all the time.

jmccalip · 01/19/2006, 08:20 PM

Alright, thank a lot everyone!

01/19/2006, 09:34 AM	#1
jmccalip Registered Member Join Date: Mar 2005 Location: Houston, Texas Posts: 240	Schedule 80 vs Schedule 40 bulkheads? Sorry, I can't search. Sorry. The search function has been temporarily disabled due to high server load. Please try your search again in a few minutes. I just ordered a Schedule 40 1 1/2" bulkhead off marinedepot to connect to my panworld 50px-x. I was wondering if I should upgrade to a Schedule 80? Is it worth it for low pressure aquarium plumbing? Thanks BTW: I havn't drilled the hole yet, but I would be mad if I wasted $8.50 on this bulkhead....

01/19/2006, 11:05 AM	#3
jmccalip Registered Member Join Date: Mar 2005 Location: Houston, Texas Posts: 240	Well then mine should be OK. The bulkhead will connect directly to the pump(well, 6" of 1.5" tubing). __________________ .

01/19/2006, 07:05 PM	#6
javajaws Premium Member Join Date: Feb 2004 Location: Round Rock, TX Posts: 1,620	If you have a choice, definitely go with 80. The sched 40 ones just break way too easy during installation. Talk about wasting $8.50 the fast way... __________________ Everyone has an opinion. Accept the fact now that someone isn't going to like yours sooner or later. Current Tank Info: 110g in-wall, ATI 8x54w T5, 2xMP40es, SRO XP-2000i, 2-part Ca/Alk, Apex controlled

01/19/2006, 07:44 PM	#7
jmccalip Registered Member Join Date: Mar 2005 Location: Houston, Texas Posts: 240	Would a double threaded schedule 80 work with all my schedule 40 parts? With such low PSI though, I just don't see how schedule 40 wouldn't work. I'm kinda tight on money right now, couldn't I just drill the hole out later for a larger bulkhead? Al I have to do is make a wood jig to hold it in place. __________________ .

01/19/2006, 07:44 PM	#8
rsteagall Registered Member Join Date: May 2005 Location: Rockvale, TN (close to Murfreesboro) Posts: 1,612	most people have the trouble of overtightening, thats why it breaks thus why the suggestion is to get sch 80. __________________ Ryan Current Tank Info: One hand holding a beer, the other in the tank, and my toes typing on the keyboard. Drunks, reefing, and keyboards do mix in a 5GAL bucket with a 1200 MJ!

01/19/2006, 09:48 AM	#2
DHyslop Registered Member Join Date: Sep 2005 Location: RI Posts: 1,085	I haven't used an 80 but I understand the machining is better (less leaking) and they're more robust (less prone to cracking). The return on my 75 goes through a bulkhead, and I'm having trouble with my rigid plumbing putting a bit of torque on it and the gasket leaking. I think the best solution for me is to switch it over to spaflex, because I don't want to take the whole thing down and drill out a larger hole for a schedule 80 bulkhead. Dan

01/19/2006, 11:55 AM	#4
manderx Registered Member Join Date: Mar 2002 Location: Christiansburg, VA Posts: 4,893	i'd want 80 if i was threading into the flange side of the fitting (a bit too tight and/or too much tape can split them). otherwise, most people go with 80 just because they are a bit sexier looking.

01/19/2006, 06:00 PM	#5
xtrstangx Premium Member Join Date: Mar 2005 Location: Shawnee, Kansas Posts: 4,568	I'm going with all Schedule 80's on my new tank. I don't want to have a bulkhead leak when I'm on vacation/out of town and let 100+ gallons of water go on the floor. If its already drilled and you can't drill it out more, make sure you don't twist the bulkhead or torque it funny.

01/19/2006, 08:12 PM	#9
javajaws Premium Member Join Date: Feb 2004 Location: Round Rock, TX Posts: 1,620	Yeah...it has nothing to do with water pressure... __________________ Everyone has an opinion. Accept the fact now that someone isn't going to like yours sooner or later. Current Tank Info: 110g in-wall, ATI 8x54w T5, 2xMP40es, SRO XP-2000i, 2-part Ca/Alk, Apex controlled

01/19/2006, 08:14 PM	#10
jmccalip Registered Member Join Date: Mar 2005 Location: Houston, Texas Posts: 240	I hand tightened the smaller 1" one(schedule 40), and it never felt like it was going to break. If seals are a probelm I can just get some EDPM ones off mcmaster for like $0.50 since my brother orders from there all the time. __________________ .

01/19/2006, 08:20 PM	#11
jmccalip Registered Member Join Date: Mar 2005 Location: Houston, Texas Posts: 240	Alright, thank a lot everyone! __________________ .