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Compositepro : Thank you! I've seen it before but didn't know what's called. The Graymills one looks appealing to me! I like the idea of a submersible pump (like Alpine PAL3100) but they don't say if they're meant to run 24/7. Thanks for the throttling experince!

Thanks for the tip. Forty, the liquid is 50C.

I see! Makes a lot of sense now. PD = fixed flow and pressure, Centrifugal = fixed pressure but variable flow. It makes alot of sense because when I asked for advice from a colleague who's doing the same project, he actually recommended a Centrifugal pump. I ignored his recommendation, but now...

Alright, Thank you! If you think it's expensive. Can you recommend a pump that is designed for Diesel and is Viton-sealed, Regardless of flow rate? I only came across this PIUSI and March pumps. All other pumps seem to use EPDM or Nitrile rubbers, both rupture when exposed to hot Diesel...

Hey Inchy. You're right, I should have been more detailed. The pump is needed for a circulation cooling system using a diesel-like property of a fluid. Basically, it'll be circulalting a 3,000Watts worth of hot liquid through a radiator and then back to a tank. To answer your question, why this...

Thanks. You really are the real deal. Ball-valve it is then!

Hey Inchy! Thank you for your valuable input as usual. I'll be running this pump 24/7/365 and my problem is power consumption. Using a globe valve will achieve the flow I desire but with the same power consumption which is a waste. My only purpose for using a VFD is to decrease power consumption...

Hello, I'd like a way to control the flow of this pump https://www.piusi.com/products/panther-ac. I read that VFD only works on the three-phase pumps, this model is available in 3 phases but it's utterly expensive. Wonder if there's a way to control a single phase?

Hello guys. Update: I'm now using a 300watt ACToDC converter, got that hooked to this DC 2000W PWM to my 80W DC fan. I included a power switch but the fan starts even if it's off. Back when I had it hooked to a 12v car battery, the exact opposite happened. The fan won't start till I move the PMW...

Hi bimr , You're right, The seller also assured me it is. I can't wait for my next pay to scope it up. Price is so great! Thanks for sharing.

Thank you, Bimr. The pump in that link is very attractive,but I wonder why the seller listed it far cheap than other sites. He's asking for $100 and it's in stock for $350. It's brand new too. Do you think it's a copy cat and not actually March?

Thank you, TugboatEng. They seem to be what I need but man aren't they expensive. The standard model goes for well above $500. That's why beyond my budget. Hoping for other options guys.

Great point. Post updated with specific requirements. Thank you!

I'm working on a project which requires a pump that has its gaskets/O-rings sealed with FKM/Viton. All pumps I came across are sealed with either Buna or EPDM, both are no good in my case. I'd appreciate any recommendations. My budget is somewhere between $250-$300 Requirements: - Viton/FKM...

Hello I've got a 12v 80w fan connected to a 2,000W 12v PWM that is connected to a 220vTo12v 300W adaptor. The fan starts as soon as I plug in the adaptor, it runs faster when I max out the PWM, but doesn't turn off when I slow PWM to 0. would Anyone explain this to me please?

Thank you all for your answers. Artisis, you've been insulting me for a while. I'm sure my stupid questions can be ignored if you don't like'em.

Tug, EPDM is listed as not recommended for this Bitcool. Was the drawing helpful to determine the size?

Hi Tug, The coolant Bitcool, it's definitely not water-based. These changes are a must. I think it's safe what you said. Thanks

Hello. I've asked the manufacturer, looked at their spare parts (they only list gasket no sizes), I even asked a store speazlied in making gasket and o-rings, no luck with all. However, In their datasheet, the dimensions are as follows: Can you guys help me figure out the circular...

Hello guys. I've asked this question about a previous pump I had, but it was not good for the job. I'm going to purchase Grundfos UPS 25-62 180, after consulting with the company which manufactures the coolant I'm going to use. They recommended changing all EPDM rubbers in this pump with Viton...