Cheapest Pressure Rated Pump

[asonitez]

55 RLT Iwaki - I need a pump equivalent to that one. How do you know if a pump is pressure rated?

 

[sjm817]

Gen-X Mak4 is ~ equivalent to a 55 RLT.

 

[areze]

2 looks at the pump specs and pressure rating will be very very apparent.

I dont think the mak4 has the same pressure as the 55rlt

PCX55 from gen-x is the pressure rated pump, much cheaper than the 55RLT, similair specs. I just ordered one for something myself. best pump I could find in the 26-28' head arena.

 

[sjm817]

There really is no such thing as a "pressure rated" pump. As an example, f you see the pump has a max head of 12', its not a good pump for high head apps. If it has a max head of 20'+, it probably is.

Here are the specs for the PCX40 Mak4 and PCX55

I use a Mak4 as a basment return for a 180G and it works very well.

PCX40 - Gen-X/MAK4 Pumps
Compare to Iwaki 55 RLT-Magnetic Drive
Magnetic Drive-Fan cooled-Sealess design 3/4 in 3/4 out
Max. Flow: ;75L/Min 19.84GPM 1190GPH
Max Head: 6.8M 22 feet
Voltage: 110V
Output: 55W
Dimensions: 10.75"L x 4"W x 5.25"H
Poles: 2
Frequency: 60hz
Speed: 3000RPM
Input: 110W


The GEN-X PCX-55HP(High Pressure) magnetic drive water pump.
Inlet- 1" MNPT
Outlet- 1" MNPT
Maximum flow- 1140 GPH
Pressure rated for a Maximum Lift of 26.2 ft.
Silent, maintenence free, no oiling required.
Economical to run 170watts, 110Volts
PSI rating 11.3

 

[areze]

if you compare equal watts, then the pressure rating does make a difference. one will have less flow and more head for equal wattage.

 

[sjm817]

What exactly is "pressure rated"? There is no such thing. Its a general term meaning the pump is more suited to pumping against high head. These pumps are more suited for pumping long vertical heights, or for use in a pressure application like a Beckett or spray injection skimmer app.

A flow pump will use much less power than a high head pump. An extreme example is a prop powerhead. A Koralia 8 flows over 3000 GPH and uses ~ 11w. If you connected plumbing to it and tried to use it to pump water through a 1" pipe, you wouldn't get very far.

 

[areze]

PCX-40 1190gph 22 ft 110watts

172$

PCX55 1140gph 26.2ft 170watts

174$

which is pressure rated? kind of a bad example because genx doesnt match their wattage.

little giant is more obvious about it

3-MDQ-SC 18.0 ft 650gph 90 watts 134$
3-MDQX-SC 14.0 ft 1000gph 100 watts 139$

4-MDQ-SC 24.3 ft 810gph 150 watts 155$
4-MDQX-SC 17.0 ft 1225gph 145 watts 155$

see how 1 is pressure "rated"

its just a term for a pump whos pump manifold is designed to push less water with more force.

there is a difference in how they are designed.

 

[sjm817]

I'm not sure what your point is. Both the PCX40 and PCX55 are quite suitable for high head use. Are you saying they are not? Gen-X doesn't have a low head flow pump like others do.

BTW, $172 is a very high price for a Mak4.

 

[areze]

I donno, didnt shop around for the best price.

point is that if your interested in pressure, you would choose a different pump than you would if you wanted flow.

I needed a pump with 25+ head. buying what the pump companies market as "pressure" pumps was much cheaper than getting a huge *** GPH pump that happened to have the same head and twice the GPH. unless you need that of course.

 

[sjm817]

<a href=showthread.php?s=&postid=14119212#post14119212 target=_blank>Originally posted</a> by areze


point is that if your interested in pressure, you would choose a different pump than you would if you wanted flow.

I needed a pump with 25+ head. buying what the pump companies market as "pressure" pumps was much cheaper than getting a huge *** GPH pump that happened to have the same head and twice the GPH. unless you need that of course.

I agree with all of that.

There is not necessarily a binary distinction between a "flow" and "pressure" pump. If you need a pump that will pump 25' head, get one that will do that. That doesn't mean a pump with a 20' rating is not sutable for high head use. There are pumps rated for 40'+

You listed pumps in your example with 14, 17, 18, 22, 24, 26' head ratings. Where is the line between the pressure and flow pumps? I would say the 22 - 26' pumps are decent high head pumps, the 17 - 18 marginally, and the 14', not really. People recommend the Reeflo Dart all the time for a basement return, which is a poor choice since the pump has a ton of flow, but a max head of 12'.

 

[areze]

the difference is the target of a specific pump based on the power it consumes and the price it costs.

obviously there will be a correlation of power with GPH and pressure.

look at the 3MDQ vs the 4MDQX. the 4 has more watts, and more money, but less head pressure. if you wanted head pressure, you would be better suited with the pressure focused 3MDQ.

 

[sjm817]

I guess I lost you again. I wasn't posting about those pumps.

Edit:
I got my PCX40 from Premium Aquatics for $120. I just checked and it has gone up and now is $150. PCX55 is $170 from P.A. Still a pretty good deal. Iwaki MD 55RLT is $279.

 

[asonitez]

I'm looking to use the pump INSUMP to power a ETSS 800 Dual Beckett. I did not want to spend 250-300 on a pump for my skimmer. I'd rather put 50 more and buy a MSX 250

 

[sjm817]

That changes a lot. In sump pumps are not typically good high head pumps, especially for doing something like pushing dual Becketts. I'm not a big fan of that type of skimmer because of the high power pumps it takes to run them. I prefer the more efficient NW type skimmers.

 

[areze]

<a href=showthread.php?s=&postid=14119614#post14119614 target=_blank>Originally posted</a> by asonitez
I'm looking to use the pump INSUMP to power a ETSS 800 Dual Beckett. I did not want to spend 250-300 on a pump for my skimmer. I'd rather put 50 more and buy a MSX 250

you bought the wrong skimmer Im afraid. dual beckets is going to need an expensive pump(174$ isnt so bad though) pump, and its going to need to be external.

not even a mag 36 will get the head you need at 550gph.

 

[seagirl]

<a href=showthread.php?s=&postid=14119614#post14119614 target=_blank>Originally posted</a> by asonitez
I'm looking to use the pump INSUMP to power a ETSS 800 Dual Beckett. I did not want to spend 250-300 on a pump for my skimmer. I'd rather put 50 more and buy a MSX 250

Just man up and buy the MSX....you know you want to

 

[bimmerzs]

The Laguna Powerjet 5000 is considered a "pressure rated" pump, it's submersible and pumps ~ 1400 GPH at under 100Watts. It will drive dual becketts.

Cheers,

 

[Harry_Fish]

Panworld 150PS

Reeflo Tarpon UNO

Both are supposed to be equivelent

I just bought the Panworld 150PS
as I needed the Head more than flow