Jebao DC Pumps - PVC Plumbing

[trojan9137]

I recently purchased a Jebao DC-9000 that I want to hard plumb into my system. Properly plumbing the pump was a bit of a challenge. I thought I'd share this information to help my fellow reef enthusiasts.

Jebao DC-6000, DC-9000, DC-12000 pump threads are not NPT. A normal female PVC adapter fitting (FPTxSlip) will not fit correctly. The threads on Jebao DC pumps are BSP (British Standard Pipe - Parallel). To properly plumb this pump you'll need a BSPxASTM adapter. You can see this in the following youtube video:
https://www.youtube.com/watch?v=LbUU...JNhMsQ&index=1


BSPxASTM adapters are available online, but are hard to find. So here are a couple of sites offering the parts to get you started.

Jebao DC-9000:
http://www.rrproducts.com/p-687856-1...t-socxfbs.aspx
http://kscdirect.com/item/SPE%2B335-...TER%2BSOCXFBSP

Jebao DC-12000:
http://www.rrproducts.com/p-687859-1...t-socxfbs.aspx
http://kscdirect.com/item/SPE%2B335-...TER%2BSOCXFBSP


Hope this helps someone out there.

[hdking]

thanks, im about to do the same with a 12000 so thats good info.

[chris.scang]

Thanks for the info, I just got a DC9000 that I am going to hard plumb. Do you have a picture of your set up? I have a good idea of what I am going to do but always like to see what others are doing too.

[cordell]

I ended up using one of the included the adapters (mine was the SpeedWave pump) and putting a 1ft section of hose between the pump and my hard plumbing.

I just couldn't wait to have the correct fittings shipped.

I justified it by reducing vibrations in the plumbing... haha

[sowildpaul]

For anyone who wants 1 1/2" gray female adapter spigot x BSP like the one in the video,
https://www.rrproducts.com/p-688796-...t-spgxfbs.aspx

Kscdirect carries it but you must order 25 of them, not one.

[chris.scang]

Originally Posted by cordell

I ended up using one of the included the adapters (mine was the SpeedWave pump) and putting a 1ft section of hose between the pump and my hard plumbing.

I just couldn't wait to have the correct fittings shipped.

I justified it by reducing vibrations in the plumbing... haha

I have considered doing the same thing using the premise of reducing vibration....lol

[laga77]

Sounds like a QC or supply problem at the factory in China, or they just don`t care. I have two DC-12000 pumps that have NPT threads. They probably ran short of NPT and threw whatever they had on hand.

[JonasW]

I'm using a 30cm long silicone hose between my plumbing and my DC6000. Works great and reduces noise. I would recommend this before hard plumbing it.

[cmc0619]

Originally Posted by chris.scang

Thanks for the info, I just got a DC9000 that I am going to hard plumb. Do you have a picture of your set up? I have a good idea of what I am going to do but always like to see what others are doing too.

Not OP but here's mine. I'm using a BSP/spigot adapter, the same one sowildpaul mentioned, that plugs directly into a union. Then 1.5" Flex PVC (to reduce vibration... Didn't help) from the pump into a bullnose reducing tee at the top to a 1" return and also driving a 1/2" filter canister line and a 3/4" hose to my ATS
I don't know how to put pics inline but they're attached.

Originally Posted by laga77

Sounds like a QC or supply problem at the factory in China, or they just don`t care. I have two DC-12000 pumps that have NPT threads. They probably ran short of NPT and threw whatever they had on hand.

I've heard this before and I'm on a mini quest to figure this out. I've got a DC-9000 and a DC-12000. Ordered them at separate times, both came with BSP threads, one from Fishstreet, one from ebay. Where'd you order yours? Also, just to be clear, you were able to screw a PVC fitting all the way down easily just like in the video?

[trojan9137]

Originally Posted by trojan9137

I think the DC-9000 BSP fittings I listed are inaccurate. I think they're actually 1 1/2" just like the DC-12000.


Jebao DC-9000:
http://www.rrproducts.com/p-687856-1...t-socxfbs.aspx
http://kscdirect.com/item/SPE%2B335-...TER%2BSOCXFBSP

[cmc0619]

The specs and information online is very all over the place and misleading.

I won't rule out that there are multiple sizes as parts for production can change over time (although I kinda doubt it) but MY DC-9000 is a 1 1/4" outlet. It's sitting at my feet as I type this as is the BSP adapter I bought for it.

Here's the line item I ordered for it from my invoice from kscdirect.com:
1 SPE 335-012 1.00 EA 1.14 EA 1.14 1-1/4 PVC FEMALE ADAPTER SOCXFBSP

Fits like a glove.

My DC-12000 is 1 1/2" outlet

[williewilliams]

I ran hard pvc line with a pvc barbed fitting that has a piece of silicone tubing to connect to the supplied stepped barb fittings supplied with the pump. This method dampens the vibrations made by the pump and quiets it down. I heard from many people that hard plumbed it that they cracked the volute. Just what I did to get around this issue.

[sowildpaul]

Originally Posted by cmc0619

The specs and information online is very all over the place and misleading.

I won't rule out that there are multiple sizes as parts for production can change over time (although I kinda doubt it) but MY DC-9000 is a 1 1/4" outlet. It's sitting at my feet as I type this as is the BSP adapter I bought for it.

Here's the line item I ordered for it from my invoice from kscdirect.com:
1 SPE 335-012 1.00 EA 1.14 EA 1.14 1-1/4 PVC FEMALE ADAPTER SOCXFBSP

Fits like a glove.

My DC-12000 is 1 1/2" outlet

Yeah, I notice that those pumps' supplied barb fittings are measured in mm (which is metric). Don't know why the specs online show NPT instead of BSP.

[mindi]

Would be very interested to hear from the people who have bought the 6000-9000-12000 how they are running after some time in use..? Any feedback to share..?

[cmc0619]

Originally Posted by mindi

Would be very interested to hear from the people who have bought the 6000-9000-12000 how they are running after some time in use..? Any feedback to share..?

My DC-12000 is still running like a champ. It's been 7 months. My DC-9000 is still sitting in a box waiting for the 12000 to break...

[lpsouth1978]

They have changed the threads on the new DCT pumps. I have both a DCT-12000 and a DCT-4000 and both accepted NPT PVC adapters.

[cmc0619]

Here too. Just bought a DCT-15000. 2" Union screwed all the way to the bottom of the pump output.

Originally Posted by lpsouth1978

They have changed the threads on the new DCT pumps. I have both a DCT-12000 and a DCT-4000 and both accepted NPT PVC adapters.

[cmc0619]

Well it'll work but I ordered a BSP adapter just for giggles.. WAY smoother. I made a video about it. Like to see it? Here it go!

https://www.youtube.com/watch?v=_xgMizKPUsI

[Specfishin]

I have a dct-4000 and it's npt. Runs great and is quiet, i run it full throttle.

[nicsound]

I have the Jecod DCT-8000 and have just recieved my newly purchased DCT-4000 for my return and for an AIO biopellet reactor respectively. I also had massive troubles finding out which thread either one used prior to buying them.

Having measured both and tested with fittings I am convinced they are BSPP threads which is Parallel British Pipe Thread as opposed to BSPT which is tapered (including the female outlet thread on the 4000). I must admit this was something of a surprise as I expected them to be NPT which is what most other chinese products I have bought have used.

The trouble is that, as I understand it, BSPP is designed to thread together smoothly creating no friction or compression between threads and to instead allow compression of a seal or gasket (or just the end of the male fitting) against a shoulder inside the female fitting which creates the seal. The thread itself is not designed to be watertight and is not supposed to be used with threadseal or PTFE tape (that is how BSPT threads work). The pic below is a slightly different application but shows the general difference.



However, none of the fittings on these pumps really seal convincingly and seam to reach the end of the thread before feeling the resistance of the male end reaching a seat within the female fittings (If that makes any sense...).

NPT, BSPT and BSPP will fit together to some degree but not properly and I certainly wouldn't want to rely on them in an external application. The friction felt after a few turns when using a NPT fitting as demonstrated in the above video is because the thread pitch (TPI or Threads Per Inch) of the two standards is very close but not the same and they are starting to misalign.

Having said this I have used PTFE tape between the threads and have had no leaks in testing but these will both be situated in the sump so I am not that worried.

If you are attaching a union anyway you could always look at epoxying that on permanently which might be a more reliable seal but then you are getting into bonding different plastics together which is a whole other kettle of fish..

Just to be clear, I am no expert but this is what I have ascertained through the many hours of hurting my brain devising plumbing runs with the very poor hardware supply here in the UK. I have ended up shipping gate valves and alsorts from the States and then having to mix and match between suppliers with poor descriptions and limited infos.

Only MHO but hope it helps.

Bottom line is.. Bodge it but bodge it good

[mindi]

My DCT 6000 running great at half throttle. Convinced that my memory/restart at old settings function isnt working correctly but emailed FishStreet.com and they said they would send a replacement controller right away. Will update when it arrives. Is possible early controllers had a problem as I saw someone else had a replacement.

[greenfish]

I just wanted to post an update to this thread for those still purchasing the Jebao pumps and wanting to hard plumb them. I found the adapters in the links previously mentioned, but the amount they wanted for shipping one adapter was just stupid. After further research, I found that the PVC adapters in the electrical sections of Lowe's and Home Depot work great!

Home Depot part 088700062450 1 1/2" female adapter fit like a glove on my dcs-12000 pump. Only cost $0.97 plus tax. So much cheaper!! Hopes this helps save some time and money!

[reefomatix]

Originally Posted by greenfish

I just wanted to post an update to this thread for those still purchasing the Jebao pumps and wanting to hard plumb them. I found the adapters in the links previously mentioned, but the amount they wanted for shipping one adapter was just stupid. After further research, I found that the PVC adapters in the electrical sections of Lowe's and Home Depot work great!

Home Depot part 088700062450 1 1/2" female adapter fit like a glove on my dcs-12000 pump. Only cost $0.97 plus tax. So much cheaper!! Hopes this helps save some time and money!

By chance do you have an updated part number or adapter? I can't search Home Depot's website with that part number. Thanks!

[moondoggy4]

^^^^If you by chance have a professional Ace Hardware or plumbing store they may have them in stock. I do not have much luck with the odd things at the Big Box stores.