C-Systems 12 VDC Pump review... - Page 8

dima y · 08-25-2004, 01:38 PM

You know Dan it would really help the matter if you listed EVERYONE you are shipping orders to on your website. The only reseller currently listed is D-Tek, they are nice and all but a little bit of a pain in the butt to deal with.

saperboy · 08-27-2004, 03:34 AM

dima y · 08-27-2004, 12:42 PM

yea they were pretty quick about billing me too, just after I placed my order, I had them partial ship the order. Only now i am getting last part (braket), I am really hoping they will not double bill me or I will be mad.

saperboy · 08-27-2004, 07:11 PM

Fanatik · 08-28-2004, 12:54 AM

Quote:

Originally Posted by saperboy

just to update you guys on my predicament....

i received a new email which says that they will process my refund now.

Now just have to wait for my new toys to arrive.

Saperboy, when did you order yours? Ive been waiting since may 25.

I just went ahead and preordered with dtek. It really sucks that people that order from d-tek are getting their pumps faster than people that ordered directly from c-systems.

saperboy · 08-28-2004, 04:46 AM

I have it pre-ordered since June 16.

saperboy · 08-28-2004, 05:01 AM

melpheos · 08-29-2004, 01:57 PM

look what i have received

All the boxes are full of csp750 v1.5 :shrug: about 250 units...

Too bad for you all, i am in France...

Tempus · 08-29-2004, 02:13 PM

hmmm... france is nice this time of the year =)

melpheos · 08-29-2004, 02:52 PM

Quote:

Originally Posted by Tempus

hmmm... france is nice this time of the year =)

Hmm today it was raining :-/ but i dont care i was in a sunny spain this morning

Edit : just resized the picture, the size was crap

dima y · 08-29-2004, 04:39 PM

so I just got my braket from Dtek for the 2 C750 pumps, I decide to put one of the pump onto the braket. It doesnt fit in, fow ANY angle

If you insert the screw through one of the holes, the other one DOESNT line up NO MATTER WHAT.

Hotseat · 08-30-2004, 02:38 PM

^ Wow thats weird, since the holes are cut the same time as the profile.

Email us your info, I'll send you another bracket out today.

Hope all of D-Teks order is not like that. Operator is suppose to test them after they get off machine.

We have some in stock just in case something like this happens.

**I just tested from D-Tek order (we keep samples) and bracket seems to fit fine.
I think it's just yours...email us your info, thanks.

dima y · 08-31-2004, 03:37 AM

will do tomorrow thank you!

dariusz · 08-31-2004, 05:21 PM

dan, is it normal that the fittings dont enter in the outlet or the inlet more than 2 mm ? ( no more than 2 full turns )i have tested qith the fittings shipped with the pumps and with the parker 1/4" ntp fittings, same result. on some of the pumps we recieved here in france ( the melpheos groped order) the fittings doesnt even enter for 1 turn.

BillA · 08-31-2004, 05:36 PM

the thread engagement length is 0.39" for 1/4" NPT

agiacobbi · 08-31-2004, 10:27 PM

Quote:

Originally Posted by unregistered

the thread engagement length is 0.39" for 1/4" NPT

Yeah, if you can get them in straight. Tried every thing I can think of. Even filed a bit more taper. I worked with injection molds all my life and I know if I sent out a mold with threads like that it would leak. There CNC cut so they are really tight and I don't think there is any taper.

dariusz · 09-01-2004, 01:16 AM

here is a picture of the pump with 2 fittings ( the palstic one and a parker cbpl 8/10-1/4")

the blue coating is very fragile, it comes off with the plastic fitting when inserting

melpheos · 09-01-2004, 04:37 AM

Quote:

Originally Posted by dariusz

here is a picture of the pump with 2 fittings ( the palstic one and a parker cbpl 8/10-1/4")

the blue coating is very fragile, it comes off with the plastic fitting when inserting

just for the hint, Dariusz found that (with Dan advice as well) the plastic fitting will allow about 4 turn (near half the lenght of the fitting) but you need to enter it by force. That way, the threading of the plastic fitting will accomodate to the one of the pump and will create a proper sealing.

With metalic fitting (such as the one shown on the picture) you need to go thru a 1/4th turn process which is doing 1/4th turn clockwise, then counter clockwise, clean the threading from additional coating that went off and then one more time etc...

Doing so will allow about the same lenght to go into the pump (outlet side only, the inlet side did not prove to have this "problem" ). In case of metallic fitting, some teflon will help for sealing anyway.

NPT conical s*x *ss...

dariusz · 09-01-2004, 05:30 AM

i have found 2 different norms about NPT : UL 514 and ASME B1.20.1, are they coincurrent ?

Hotseat · 09-01-2004, 07:28 AM

The thread area is NOT anodized, we place grease on them to protect them from the acid.

If we did not, the threads would not be sharp, as the acid causes them to round off or build, and this will cause problems with sealing plastic fittings.

The order was place with plastic fittings, and we opitimized for the fittings we provided.

Yes, there is a taper, if there was not, the fitting would not get tite.

You guys should know, NPT standard is NOT followed very well. Try placing 4 different brand / material 1/4 NPT fittings side by side, and you will see the starting diameter varies.

At first we designed for metal fittings, but people where forcing plastic fittings all the way into the impeller (no joke). The feedback we had, showed 90% of the people where using plastic fittings, so we cut back a bit, to have best fit with plastic.

If you have a metal fitting, do as suggested above, and run it in and out a bit.

Most of the confusion comes from our European customers, which will no longer be a problem, as we now ship to Europe with 1/4 G straight ports

** AGIACOBBI, you worked on injection molds with NPT threads, could use some advise on three peice mold with interior NPT threads. Having a bitch finding an example

Hotseat · 09-01-2004, 07:54 AM

Hey guys speak of fittings, the best I have seen for your application, is the ones D-Tek has (not a plug...really)

There barbed, metal (coated - nickel I think), have a straight thread and an o-ring.
Real good ID, and safe on poly tops.

Hoping to start making a few thousand for them soon, but our CNC lathe is busy 24 / 7 making.... you guessed it... car parts

Looking for another one now that we have some more room.

melpheos · 09-01-2004, 08:02 AM

Quote:

Originally Posted by Hotseat

The thread area is NOT anodized, we place grease on them to protect them from the acid.

If we did not, the threads would not be sharp, as the acid causes them to round off or build, and this will cause problems with sealing plastic fittings.

The order was place with plastic fittings, and we opitimized for the fittings we provided.

Yes, there is a taper, if there was not, the fitting would not get tite.

You guys should know, NPT standard is NOT followed very well. Try placing 4 different brand / material 1/4 NPT fittings side by side, and you will see the starting diameter varies.

At first we designed for metal fittings, but people where forcing plastic fittings all the way into the impeller (no joke). The feedback we had, showed 90% of the people where using plastic fittings, so we cut back a bit, to have best fit with plastic.

If you have a metal fitting, do as suggested above, and run it in and out a bit.

Most of the confusion comes from our European customers, which will no longer be a problem, as we now ship to Europe with 1/4 G straight ports

** AGIACOBBI, you worked on injection molds with NPT threads, could use some advise on three peice mold with interior NPT threads. Having a bitch finding an example

Thanks for the update

Yet G1/4 straight is too late for us

But you got the point, in Europe, we play by BSP rules...

Now => my mail

lordneo · 09-11-2004, 09:19 PM

just looked at D-tek information regarding running 2 pumps in series,
if you split the inlet water line ( with Y spliter ), wouldnt that reduce the water going into the pumps... wouldnt it be better to have a separate res, for each pump, thus each pump will get as much water as it requires ?

been looking at water cooling for years... just didnt have time or inclination to do it, that line as been reached.

mostly will be adding a 6800 cooler in the future,
double heater core from DD, RBX.... res for easier living,
lets not start a res debate.

THanks.

gungeek · 09-12-2004, 11:45 PM

Is any information available about Mk2 vs. Mk1 flow? A head vs. flow chart for the Mk2 would be a nice thing. Presumably, the manufacturer has that data.

threeputt · 09-13-2004, 12:59 PM

All the pump talk lately got me thinking about buy new pump. So I was looking around and found this guide from C-systems that recommends only parallel pump configuration...??? Did I miss something???

08-27-2004, 03:34 AM	#177
saperboy Cooling Neophyte Join Date: Jun 2004 Location: Singapore Posts: 29	Last edited by saperboy; 08-29-2004 at 12:17 AM.

08-27-2004, 07:11 PM	#179
saperboy Cooling Neophyte Join Date: Jun 2004 Location: Singapore Posts: 29	Last edited by saperboy; 08-29-2004 at 12:18 AM.

08-28-2004, 04:46 AM	#181
saperboy Cooling Neophyte Join Date: Jun 2004 Location: Singapore Posts: 29	I have it pre-ordered since June 16. Last edited by saperboy; 08-29-2004 at 12:16 AM.

08-28-2004, 05:01 AM	#182
saperboy Cooling Neophyte Join Date: Jun 2004 Location: Singapore Posts: 29	Last edited by saperboy; 08-29-2004 at 12:15 AM. Reason: cool

08-29-2004, 02:13 PM	#184
Tempus Cooling Savant Join Date: Jul 2003 Location: Michigan, USA Posts: 456	hmmm... france is nice this time of the year =) __________________ Thou art God.

08-25-2004, 01:38 PM	#176
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	You know Dan it would really help the matter if you listed EVERYONE you are shipping orders to on your website. The only reseller currently listed is D-Tek, they are nice and all but a little bit of a pain in the butt to deal with.

08-27-2004, 12:42 PM	#178
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	yea they were pretty quick about billing me too, just after I placed my order, I had them partial ship the order. Only now i am getting last part (braket), I am really hoping they will not double bill me or I will be mad.

08-29-2004, 01:57 PM	#183
melpheos Cooling Neophyte Join Date: Jun 2004 Location: france Posts: 16	look what i have received All the boxes are full of csp750 v1.5 :shrug: about 250 units... Too bad for you all, i am in France...

08-29-2004, 04:39 PM	#186
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	so I just got my braket from Dtek for the 2 C750 pumps, I decide to put one of the pump onto the braket. It doesnt fit in, fow ANY angle If you insert the screw through one of the holes, the other one DOESNT line up NO MATTER WHAT.

08-30-2004, 02:38 PM	#187
Hotseat Cooling Neophyte Join Date: May 2004 Location: Canada Posts: 62	^ Wow thats weird, since the holes are cut the same time as the profile. Email us your info, I'll send you another bracket out today. Hope all of D-Teks order is not like that. Operator is suppose to test them after they get off machine. We have some in stock just in case something like this happens. **I just tested from D-Tek order (we keep samples) and bracket seems to fit fine. I think it's just yours...email us your info, thanks.

08-31-2004, 03:37 AM	#188
dima y Cooling Savant Join Date: Nov 2002 Location: palo alto, CA Posts: 164	will do tomorrow thank you!

08-31-2004, 05:21 PM	#189
dariusz Cooling Neophyte Join Date: Aug 2004 Location: france Posts: 7	dan, is it normal that the fittings dont enter in the outlet or the inlet more than 2 mm ? ( no more than 2 full turns )i have tested qith the fittings shipped with the pumps and with the parker 1/4" ntp fittings, same result. on some of the pumps we recieved here in france ( the melpheos groped order) the fittings doesnt even enter for 1 turn.

08-31-2004, 05:36 PM	#190
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	the thread engagement length is 0.39" for 1/4" NPT

09-01-2004, 01:16 AM	#192
dariusz Cooling Neophyte Join Date: Aug 2004 Location: france Posts: 7	here is a picture of the pump with 2 fittings ( the palstic one and a parker cbpl 8/10-1/4") the blue coating is very fragile, it comes off with the plastic fitting when inserting

09-01-2004, 05:30 AM	#194
dariusz Cooling Neophyte Join Date: Aug 2004 Location: france Posts: 7	i have found 2 different norms about NPT : UL 514 and ASME B1.20.1, are they coincurrent ?

09-01-2004, 07:28 AM	#195
Hotseat Cooling Neophyte Join Date: May 2004 Location: Canada Posts: 62	The thread area is NOT anodized, we place grease on them to protect them from the acid. If we did not, the threads would not be sharp, as the acid causes them to round off or build, and this will cause problems with sealing plastic fittings. The order was place with plastic fittings, and we opitimized for the fittings we provided. Yes, there is a taper, if there was not, the fitting would not get tite. You guys should know, NPT standard is NOT followed very well. Try placing 4 different brand / material 1/4 NPT fittings side by side, and you will see the starting diameter varies. At first we designed for metal fittings, but people where forcing plastic fittings all the way into the impeller (no joke). The feedback we had, showed 90% of the people where using plastic fittings, so we cut back a bit, to have best fit with plastic. If you have a metal fitting, do as suggested above, and run it in and out a bit. Most of the confusion comes from our European customers, which will no longer be a problem, as we now ship to Europe with 1/4 G straight ports ** AGIACOBBI, you worked on injection molds with NPT threads, could use some advise on three peice mold with interior NPT threads. Having a bitch finding an example Last edited by Hotseat; 09-01-2004 at 07:36 AM.

09-01-2004, 07:54 AM	#196
Hotseat Cooling Neophyte Join Date: May 2004 Location: Canada Posts: 62	Hey guys speak of fittings, the best I have seen for your application, is the ones D-Tek has (not a plug...really) There barbed, metal (coated - nickel I think), have a straight thread and an o-ring. Real good ID, and safe on poly tops. Hoping to start making a few thousand for them soon, but our CNC lathe is busy 24 / 7 making.... you guessed it... car parts Looking for another one now that we have some more room.

09-11-2004, 09:19 PM	#198
lordneo Cooling Neophyte Join Date: Sep 2004 Location: VA, USA Posts: 2	just looked at D-tek information regarding running 2 pumps in series, if you split the inlet water line ( with Y spliter ), wouldnt that reduce the water going into the pumps... wouldnt it be better to have a separate res, for each pump, thus each pump will get as much water as it requires ? been looking at water cooling for years... just didnt have time or inclination to do it, that line as been reached. mostly will be adding a 6800 cooler in the future, double heater core from DD, RBX.... res for easier living, lets not start a res debate. THanks.

09-12-2004, 11:45 PM	#199
gungeek Cooling Neophyte Join Date: Aug 2004 Location: Oklahoma, USA Posts: 17	Is any information available about Mk2 vs. Mk1 flow? A head vs. flow chart for the Mk2 would be a nice thing. Presumably, the manufacturer has that data.

09-13-2004, 12:59 PM	#200
threeputt Cooling Neophyte Join Date: Jul 2004 Location: Atlanta, Georgia, USA Posts: 78	C-Systems recommend parallel setup? All the pump talk lately got me thinking about buy new pump. So I was looking around and found this guide from C-systems that recommends only parallel pump configuration...??? Did I miss something??? __________________ "If you can't spot the sucker in your first half-hour at the table, you ARE the sucker."

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