Linear Hydraulic Ram Pump - 3" drive pipe

[Cathonius]

"it can pump underwater"... with flooded waste valve? Hm...

[approtechie]

@Cathonius Yes, exactly, with flooded waste valve. So long as there is sufficient drive head the pump will continue pumping while under water. Look at my other video "Linear ram pump working under water" and you'll it doing just that.

[acanov]

Great design! Is this similar to the GLOCKEMANN pumps.

[approtechie]

@acanov Thanks! This is just a standard ram pump with a few innovations. As I understand it, the Glockemann pump is somewhat similar to a ram pump but uses the falling water to drive a piston which is capable of pumping a small amount to a much greater height.

[acanov]

@approtechie How about lenghthening the overall pump length or diameter of your linear ram pump. Will it improve the height. I like your innovative design because of the underwater capability, just like the expensive Glockermann's. 

[approtechie]

@acanov I think the 4" diameter on PVC is reaching the limits of the material. You can see how I had to strengthen the waste valve area with two layers of pipe and clamps. However, lengthening the pump is a possibility. I'm working on a steel pump with double the size of waste valve and longer air chamber to allow for higher heads and greater flow rates.

[acanov]

@approtechie The output can be 10 fold by arranging 10 of these linear pumps next to each other , hence optimizing the dam. ;)). Good luck with the steel version. I'm looking forward to your drawings and more videos of your pumps. 

[tonymac96]

Very good design....Do you have a check valve after the waste valve ?

Thanks

[approtechie]

@tonymac96 Yes, the check valve is a flat 3" PVC cap with a bunch of holes drilled in it and a rubber flapper valve over them. It's glued and clamped in place inside the 4" pipe. The screw holding the rubber flapper in place is stainless steel and can be accessed from the bottom when the 4" threaded end cap is removed.

[colgunbunn0351]

Great design! What kind of valve are you using for your waste valve?

[approtechie]

@colgunbunn0351 The waste valve is made from a double layer of rubber backed by a curved steel plate for strength. The rubber is fastened to the pipe on the upper edge and acts as the hinge. A piece of 4" pipe is the top layer of the valve and it's all held together with a 3/8" x 6" bolt, which also has fender washers stacked on it to provide the weight for opening the valve by gravity.

[tacodelgato]

Cool design! Very curious about your valve, plans please! :)

[MrWoody120]

what a great design. i can really use this on my property. i need to get water from my sream. thanks. how can i obtain one. thanks

[approtechie]

Thanks! I still haven't had time to put a manual together but will let you know when it's done. BTW, this PVC design can only handle about 5 feet of fall, but can pump at least 15 times that height. I'm also working on a stainless steel version that can handle higher drive heads.

[khriz777mose]

Hi,brilliant idea! this have never crossed my mind.

Have you put the manual together ?

[zimagee]

Where can I get plans for this pump? Does it use any custom parts, or is it all off-the-shelf parts?

[tycer7]

I second the request for plans please!

[TheArvindrocks]

hooooola hooooola hooola

[djeansradio]

Great design..