1/2HP Stainless Steel 2" OD Pipe Submersible Bore Pump 1/2 inch Outlet Water Pump 220-240V, 50Hz, Deep Well Pump Screw Submersible Water Pump for Industrial and Home Use

TL:DR – scroll down.A few things:Will it fit a 2” casing? Yes – more on that later.Two pumps are being sold here – 50hz and 60hz. Both pumps are the same size. The 60hz motor has different dimensions listed under the details of the title. But they are physically identical. I ordered both just in case the 60hz didn’t fit the well case.50 or 60hz? I can tell you the labels are virtually identical with the only exception is 50/60hz and rpms. The 60hz has 3420 rpms where the 50hz is listed as 2850rpm. Are they indeed the same exact motor with just different stickers? I have no way of testing to see if there is a difference between the two and to verify if they are actually rated for the proper hertz. The plugs were different too. The 50hz has the traditional 220v plug you would find in other countries outside of the US. The 60hz had the typical 120v plug with a ground.Why does Hertz matter? To clear up some confusion based on previous reviews that had things backwards… 50hz is what other countries outside the US and Canada use. The United States and Canada uses 60Hz. So if you plug in a 50Hz motor into a 60hz power source, you would get about a 20% increase in power and RPM’s. If you plug in a 60Hz motor into a 50Hz power source – yep, you guessed it… the power and RPM’s decreases. The RPM increase in the 60hz motor isn’t quite exactly a 20% increase but it is very close which really makes me wonder if both pumps are actually identical, but with different stickers and plug ends. I am not insinuating they are the same… I am simply thinking out loud.Wiring is very thin with no ground. I would guess it is more like an 18ga wire. It is tiny! And there is no ground wire even though the ground prong is on the plug. No big deal as I will be using new wire. The pump may very well be able to handle the wiring it came with. The pump runs off just 2.5 amps.2” casing – I must thank the reviewer who posted pictures of the ground down screws. That is exactly what I did and it slid down the casing. Yes it is tight. I plan on grinding/cutting some very small shallow slits on the sides just above the screws. I am hoping it would allow more volume of water to get pulled in from the bottom side of the well and also help well recovery.Performance – I used a black 5/8 irrigation pipe for the drop pipe since I want to ensure this setup works before spending more $ on the proper PVC. I use this well on weekends to provide water to the camper on my land. We have been using about 250 gallons per month. The well is 230’ deep with a 2” casing. I currently have the pump about 80’ down. Water level is about 15’ below the surface. I installed it last weekend and have pumped over 100 gallons so far with it. At first, I was really impressed. 3.9-4.0 GPM. The GPM’s would slowly drop as the water level in the casing dropped. It would run for about 6 min before the water level dropped too much and potentially go dry. This is the reason I am going to try to cut slits into the side to help water from the bottom of the well essentially get “around” the pump faster to help recover faster and maybe even “keep up” with the demand. When I hooked it into the pressure tank, things changed. I can only build about 45psi and GPM drops fast. It will start about 2.0 GPM and drop down to .6 as the pressure increases and the tank fills. This I believe is because of the 1/2hp and the water level dropping so much in the casing that the pump simply can’t push the volume as we’d like. This pump runs 2.4 – 2.5 amps whether it’s pushing 4.0 or .5gpm.Overall - I still have some experimenting to do but it does work in a 2” casing. I am on the fence whether I will use ½ or ¾” for the drop pipe. I am not sure if ¾ would add an unnecessary load to the already stretched pump or if it is even worth trying. Plus it takes up even more valuable real-estate in the casing considering the wires and lanyards still need to go inside the small 2” casing. Is it worth it? Maybe. What’s the alternative? A jet pump with a single pipe going 80’ down to the ejector. Maybe I should have replaced the jet pump but I figured I would try this pump for the simplicity and cost. I figured with the minimal use, it *should* last longer than other reviews of about 10 months to a year. I will probably have between $400-500 when done because of new wiring, PVC, glue, fittings, pressure switch, gauge etc.TL:DR – It fit inside my 2” casing with modifications and works. I achieved 4.0GPM when the water was 15’ below the surface. When hooked up to a 36 gallon pressure tank it would produce .5 – 2.0 gpm depending on the pressure in the tank and the level of water in the casing and maxing out at 45psi. The pump has only been installed for a few days so I have adjustments I would like to make and I might update this if anything significant is worth mentioning.Good luck!

Buena y duradera. Gracias

Thank you other reviewers for showing the screw ground down and it fitting in a 2 inch NPT pipe metal or plastic .This pump is 220 Vac as other reviewers have stated. The wire is to thin for its rating and missing a ground wire altogether.I cut the pump wire and put 16 gauge like the manual says, the wire supplied looks like 18 gauge. I'm not sure on longevity but I tested on the surface and it is loud vibrates a lot!The cork screw is noisy as all but about that later. I needed this for a 2 inch galvanized pipe and I searched forever. Thank you to the previous poster who shows a screw ground down. That didn't work for me I had to grind even more of the collar off but it's all cosmetic I polished it and it works fine.I used 5/8 hose barbs connection to the 1/2 female Npt port on the pump. Then I go to a 1/2 inner diameter poly pipe and 95 ft down or 20 ft below water line it pumps at 2.4 gallons a minute with no pressure tank.If you add a tank it slows to 1 gpm or even slower if you have to pump far. It doesn't have great head pressure it's best to free flow a pipe open into a tank and the manual does state for tank use only.I have it on a 30/42 psi pressure switch and it shuts it off and starts up Everytime. I have a smart 240 vac transformer controlling the pump so it should never short out as it has multiple protection circuits to cut off power.It draws 500 watts from my transformer and shows light mode or green so I'm very happy . I am on solar and I can pump 6 hours non stop till I lose enough power to run it even though the suns up much longer.In 6 hours I pump 900 gallons or 150 gallons an hour free flow into a tank. I pray it never burns up I bought the extended warranty in case and I did everything to protect the pump like silicone electrical connectors with 3 layers of heat shrink tubing.I used stainless steel for the barb connection and gave the pump a light silicone coating to keep rust away or it seizing on the 2 inch walls.It was painful getting the pump down a 2 inch pipe it kept getting hung up due to the length of the pump and the walls flexing on the pump.I had to push it through at some spots and I just hope it never stops working cause I'm terrified of having to pull it out and grind another one down to fit.So far it's pumped 3k gallons and I will update my review if need be. Please mark this as helpful if it helps you.

All in all it's a good item, the reviews stated that it was somewhat bigger than it stated, this is true. The item itself is worth it just make sure you give yourself some room for error. Once you try to modify or try to force it to fit you forfeit your return.

The casing is 2”, but with the hardware protrudes another 1/8-1/4 inch.

The pump is very nicely made but there was a problem with my my will and the pump couldn't get through so unfortunately I didn't get to use this pump. I believe you need to use 50 HZ which is for European unless the pump will overheat and burn up

MUY BUEN SERVICIO Y EL PRODUCTO EXCELENTE