Gikfun Mini DC 6V to 12V R385 Water cooled Water Pump Air Diaphragm Pump EK1856

I use this to pump out my hydroponic deep water system. Its quite and works a lot quicker than just gravity. It took me all afternoon before now its less than an hour.

Nice little pump. Performs as stated. Works great with carbonated beverages which is just what I needed as I was asked to make an existing punch fountain into a champagne fountain and the original pump that came with the fountain would not work with any type of carbonated beverage.

Gikfun Mini DC 6V-12V R385 Water-Cooled Diaphragm Pump ReviewI tested this small diaphragm pump in a few light-duty applications, including a DIY water circulation setup and a small cooling project. Overall, it performs reasonably well for its size and price point, but it’s important to understand its limitations before purchasing.Performance & Build Quality:The pump is compact and lightweight, making it easy to integrate into small projects or tight spaces. The motor runs smoothly and produces a steady flow when supplied with the correct voltage. It appears decently constructed for hobby or experimental use, though it doesn’t feel like an industrial-grade unit.Flow & Operation:At 12V, the pump delivers noticeably better flow and pressure compared to lower voltages. It primes fairly quickly and maintains consistent operation once running. Noise levels are moderate—noticeable but not excessive for a small motor pump.Cooling Feature:The water-cooled motor design is a nice addition and helps prevent overheating during longer run times. That said, I would still recommend monitoring temperatures if running continuously for extended periods.Installation & Use:Installation is straightforward if you’re comfortable working with low-voltage DC power supplies. The inlet and outlet connections fit standard small tubing, but securing them properly is important to prevent leaks.Pros:✔ Compact and lightweight✔ Decent flow performance at 12V✔ Water-cooled motor helps with extended operation✔ Good option for DIY, hobby, or small circulation projectsCons:✘ Not designed for high-pressure or heavy-duty use✘ Wiring is basic and may need reinforcement for long-term reliability✘ Some vibration and operational noiseOverall:This pump is a solid choice for hobbyists, small cooling loops, or experimental fluid transfer setups. It’s not meant for demanding or mission-critical applications, but it performs well within its intended scope. If you need a small, affordable DC diaphragm pump for light use, this one is worth considering.

Works great. Easy to wire and do whatever with. Pump works very well. I used it to make a tiny AC.

This pump worked PERFECTLY right out of the box. I am using it with an arduino for a bit of DIY watering system. I've purchased other pumps in the past that did the work but seemed to struggle. This pump has plenty of push, I have 3/8"OD piping connected to a small 1/4"OD tube running to a pitcher of water. It transfers the water with ease and is actually extremely quiet! I purchased 2 for prototyping and experimenting with them, but they have me sold. I'll be ordering more extremely soon.From other reviews i've seen, they say it doesn't self prime. Mine had no issue with priming whatsoever. I left plenty of air in the tubing while initially connecting it and it deals with it with ease.

Cannot speak for function or duration, as I couldn't get it to fit my 8mm ID hose. The pump connections are advertised as 5mm ID and 8.5mm OD, but my hose would not stay on the nipples. The measurements I made show the ID as 4.2mm and OD as 7.5mm. Furthermore, the nipples are tapered outwards, which means they naturally want to disconnect from the hose.The price is good, function unknown, but the design definitely needs work. Another Amazon return, unfortunately....

Works well. I use it to cool the brushless motors in my 42" wood RC boat. The rubber feet prevent shock so the hold down screws stay tight.

I got this pump to run on my 3d printer that I converted to water cooling. It is extremely quiet. I have to look at the vent on the side to see the stator inside spinning to make sure it is running. I’ve had it run on as little as 3v without stalling. Self-primes so you don’t need to worry as much about an air pocket stopping it from working like some other designs.While it can also pump air, it makes a horrid whistling sound. There are other pumps that work better for air.May 10, 2019 update. So after a few months of using these pumps ive learned that they are not rated for 12v. Most of the time i had them run at 5v and only going to higher voltages for short times to fill my water cooling loops and deal with air pockets. Last night both of my pumps started smoking anytime they got over 6v of power.

Mueve el agua como toca, pero no espereis potencia es decir chorro no sale.

Bonne petite pompe auto-amorçante cette pompe est capable d'aspirer au moins à 1m (pas essayé plus), assez silencieuse mais sans doute pas faite pour un usage continu. Je m'en sers de pompe doseuse. Bon produit économique. Très pratique pour transvaser de liquides même légèrement chargés.

Se dovete svuotare un serbatoio di grossa capienza questa pompa non fa per voi....se dovete utilizzarla per la miscelazione di fertilizzanti liquindi in un sistema di coltivazione, è un ottimo prodotto....flusso costante, la portata dipende dalla densità del liquido.Molto soddisfatto

Vorab: Die Pumpe wird hier unter verschiedensten Namen, zu sehr variablen Preisen vertrieben,zumindest die mir vorliegenden Exemplare sind 100%ig identisch.Für den Preis von gut 5 Euro aufwärts incl. Prime Versand kann man keine Flüsterpumpe erwarten, die Geräuschentwicklung ist beim pumpen von Flüssigkeiten dennoch moderat.Rund laufen tut sie ab ca. 5V. Das obere Limit habe ich nicht ausgelotet. Wenn man aber anderenRezessionen allerdings glauben darf, ist sie nicht dauerbetriebsfest bei 12V.Aufgrund der geringen Ströme bieten sich ein Betrieb mit einer ausrangierten Steckdosenwarze an.Die Anschlüsse sind kompatibel mit den kleinen Crimp-Steckern wie sie z.B. auch im Kfz.-Bereich Verwendung finden.Soweit alles paletti :)Zu bemängeln sind allerdings die Schlauch-Anschlüsse, diese sind suboptimal.Zum einen sind die Nippel konisch, zudem haben sie keine "Widerhaken". Da muß der Schlauch schon perfekt drauf passen und sich festbeißen, den eine Zusatzsicherung in Form einer Schelle verbietet sich bei der Kontur von selber.Schläuche mit 5mm Innendurchmesser passen zum Glück recht perfekt.Ich habe mich für einen schnöden PVC Schlauch entschieden. Ein dickwandiger Silikonschlauch hielt zwar auch recht gut, gefühlt war die Verbindung allerdings einen Ticken weniger vertrauenerweckend. Das mag vonSchlauch zu Schlauch aber auch variieren.Wenn wir schon bei den 5mm Innendurchmesser sind: Der Querschnitt ist eindeutig zu hoch für so ein Pümpchen,das macht die Installation selbst mit Silikonschläuchen schon ungemein sperrig.Ich empfehle daher eine deutliche Reduktion kurz nach der Pumpe. Mit 3mm ist man sicherlich noch auf der sicheren Seite. Noch kleiner mag u.U. auch gehen, das hängt dann aber entscheidend von der Betriebsart, Spannung, Viskosität des zu pumpenden Materials etc. ab.Luft & Lärm:Prinzipiell eignet sich eine Membranpumpe auch vorzüglich zum Luft pumpen, bzw. ein Trockenlaufen nach verrichteter Arbeit ist völlig unkritisch.Jemand hatte folgendes Phänomen jedoch bereits in einer anderen Rezession erwähnt:Dieses Modell macht sich als Luftpumpe allerdings mit einem lauten Pfeifen bemerkbar. Für die Pumpe wohl unkritisch, für den Nutzer allerdings unerträglich.Dem kann man aber, wie ich feststellen konnte, abhelfen :)Schuld ist der "Sportauspuff". Durch den hohen Querschnitt röhrt die Luft regelrecht hindurch.Eine merkliche Reduktion des Durchmessers reduziert den Lärm auf ein durchaus erträgliches Maß.Noch ein Argument für eine Querschnittsverringerung :) Nur aufpassen, daß man es nicht übertreibtund die Pumpe über Gebühr beansprucht.

Replaced my existing water dispenser pump with this. Its silent and solid pumping! Thanks value for money