Hypro diaphragm pump

[bigblazer]

Does any one run one for pulling vacuum? Opinions? Experiences? I see Sugar bush supplies sells a gas and eclectic version. I havent been able to find much information on them.

[calvertbrothers]

Does any one run one for pulling vacuum? Opinions? Experiences? I see Sugar bush supplies sells a gas and eclectic version. I havent been able to find much information on them.

I have not pulled and vacuum with it I have only push sap with it. I have it hooked up to my releaser tank. I have put my hand over the drain and does produce strong vacuum. Mine is hooked up to 5.5 hp Honda at vary little over idle I use 2 1/2 gallons of gas every 24 hours. I think it would definitely out perform the 2 diaphragm guzzler. I would try it but it’s the heart of my operation right now. And they are really easy to work on.

[maple flats]

I hope that the pump is different than the one used to pump water or sap. Are those diaphragms made for long term running dry, like the little ones?

[calvertbrothers]

Mine ran for 5 days straight and my releaser would release every 7 minutes and it would take less than 30 seconds or so to to get the sap out of the releaser tank so to would be 6 1/2 minutes or so of dry running.

[bill m]

I have been running a Hypro D252 for almost 20 years now. Works great! I have seen almost 26 inches on the vacuum gauge. I have had diaphragms last 5 years but now i replace them at the beginning of the season so I don't have to worry about them. I disassemble the pump when I buy it, clean out the oil and run vegetable oil just to be safe. I will be adding one to a 300 tap sugar bush for the 2021 season.

[asknupp]

Which hypro pump are you guys talking about? I'm intrigued.

[heus]

Which hypro pump are you guys talking about? I'm intrigued.
Yes I would like to know exactly which D252 model. On ebay there seems to be different types of D252 models. Has anyone run one of these off of an electric motor?

[bill m]

The one I am using is the 9910D252. I have it belt drive with a 3/4 hp. electric motor. My next one will be with a 1/2hp. motor. You will need to size the pulleys to get the correct rpm of the pump. No releaser is needed with these pumps.

[calvertbrothers]

I run a D70. 19.5 gpm

[bill m]

How many taps do you have on that D70?

[calvertbrothers]

How many taps do you have on that D70?

This year I’m go to do a little test around 450-500 taps. I never pulled vacuum I used it to push sap to my sugar house. But I changed somethings around this year and I’ll be using it to pull vacuum. I know the double diaphragm guzzler is 19.8 gpm if I remember correctly and the D70 is 19.5 gpm. I’m going to guess around 800 taps. But I’ll only use 2 1/2 gallons of gas every 24 hours and less diaphragm failure. I ran the pump for days on end last year and never changed diaphragms. And most of the time it was running dry until the releaser tripped and dumped sap in the releaser tank. But ill let you know how it goes in a few months.

[bill m]

Your running it with a releaser? I don't use one with mine and the new one I am putting on 315 taps won't have one either.

[calvertbrothers]

No the pump is hooked up to the releaser tank. When the releaser dumps The sap goes into the tank and the D70 pumps it 700ft to the sugar house

[bill m]

Ok, I get it now. You have a seperate vacuum pump. I would think that D70 could handle 1500 taps.

[calvertbrothers]

Ok, I get it now. You have a seperate vacuum pump. I would think that D70 could handle 1500 taps.
That I don’t know.

[Sap Raider]

Are these pumps able to do vacuum on mainlines? It looks like yes, but not sure based on a couple of responses. I have a remote woods that I am going to setup with about 3000 taps. If I could use these pumps with out a releaser it would be dual purpose, vacuum and a pump to a tank.

[bill m]

Mine is on a 3/4 inch main line and I can get 26 inches of vacuum. I am putting another one on a 320 tap sugarbush for this season. I don't know if you can get one big enough for 3000 taps. You would have to know the maximum gallons per minute that mainline flows then find a pump that will do 3 times that amount.

[Sap Raider]

It looks like it would be closer to 1500 taps not 3000. If it would do 800 on one, then I could use 2 of them as long as I can pump to a tank with them. What are you using for powering it, gas or electric?

[maple flats]

Mine ran for 5 days straight and my releaser would release every 7 minutes and it would take less than 30 seconds or so to to get the sap out of the releaser tank so to would be 6 1/2 minutes or so of dry running.
The 6.5 minutes running dry is not my concern. I'm wondering what the CFM might be when the diaphragm is dry. I use a little diaphragm pump to pump water thru my tankless water heater. When it doesn't have a head of pressure feeding it, the air volume moved it quite low, then as the diaphragm gets wet, it works the pump much harder.

[bill m]

Sap Raider, mine is powered by a 3/4 hp electric motor because that's what I had. I am pulling sap uphill about 18 inches and pushing it 8 feet up to my collection tank. The new one I am putting together will have a 1/3hp electric motor. That sugarbush has great elevation drop to the tank.