Landa PHWS Help

[Tom Stetina]

Hello!
I've picked up a Landa PHWS 3000-4 for a VERY cheap price because it's 3 phase.($250!!)
250 degree hot/steam capable.
I'm wanting to make this practicle to put on a trailer and run off a generator. I've got the electrical worked out OK.(26amp 220v 1 phase)
What I plan on doing is swapping out the 7.5hp 3 phase motor for a 5hp 1 phase with a correct size pump for the smaller motor.(belt drive)
I've talked to GP and the way the pump #'s work out, I can use a 3000psi@2.5gpm OR a 2500psi@3gpm. Which pump would be the better way to go?
Anybody see any problems with what I'm trying to do?
I figure even with the lower cleaning units plus the hot water, It's still going to be a pretty potent little machine for around $1000.
Thanks!

 

[Torque454]

2500@3gpm is the best option of those two but both are pretty small. It will take a hell of a generator to run that, also. And unless you have that generator already, youd be better off convering to a gas motor and pump and perhaps a 12 volt heater setup. What i am doing is useing a 13hp honda that i picked up used for $300, and a NEW AR 4000psi 4GPM pump that i bought on ebay WITH unloader and chemical injector for $275 shipped. Then for the heater i am using a 110v setup right now but soon i am going to use a 12v blower and fuel solenoid with the transformer on 110v. I will use a power inverter on the 12v battery to run the transformer. From my experience that is a much much more reliable method than using a 12 volt transformer. A power inverter however is not really big enough to run the entire burner tho unless you want a big one. To keep the battery charged, since i do not have an electric start motor, i will have the trucks batteries connected to the trailers battery to keep it charged. A small generator and battery charger is on board also. (truck is diesel, has two large batteries, can leave all the interior lights on all night and it will still start in the morning on a cold morning so utilizing its battery isnt a problem) This is just what i would do. I bought my heater for $200 it was a 220v setup. I added a 110v blower and transformer and solenoid and converted it to 110v. The motor was free, otherwise i would have went strait to 12v. 12v motor is $150, wheel is 50, solenoid is 25, and transformer was 50. so for $275 you can convert the heater to 12v. You could have that setup for $1000 or less also and not need a huge expensive generator.

 

[Tom Stetina]

I already have the generator. That's why I'm thinking this route. No room on the Landa for a 13hp gas engine. 12v burners I've looked at are around $650. Most inline water heaters I've looked at only advertise 100 degree heat rise. (or am I missing something?)
I'm putting together a 13hp 3500psi/4gpm belt drive washer that I figure will be my work horse. Just want to have the hot Landa unit for nasty greasy work.
I know I'll need something bigger down the road, but we all gotta start somewhere.

 

[Mark]

If you are running a 4 gpm pump, I would utilize the full volume and lower the pressure, I believe this would be more effective.

(4 @ 2000, should get pretty close with a 5 HP electric motor.)

 

[Tom Stetina]

OK, would that still hold true when using a smaller surface cleaner? I'm looking at a 20" GP Hammer Head. The saleman told me it requires 2500psi minimum. Or are those things more about GPM?

 

[Mark]

[whatup]Both GPM as well as PSI are important factors.

I believe you would be better off using 4 @ 2000 PSI
verses 3.5 @ 2500 psi with the surface cleaner also!

Maybe some others will post different opinions?

 

[Torque454]

I already have the generator. That's why I'm thinking this route. No room on the Landa for a 13hp gas engine. 12v burners I've looked at are around $650. Most inline water heaters I've looked at only advertise 100 degree heat rise. (or am I missing something?)
I'm putting together a 13hp 3500psi/4gpm belt drive washer that I figure will be my work horse. Just want to have the hot Landa unit for nasty greasy work.
I know I'll need something bigger down the road, but we all gotta start somewhere.

You can use the 3500/4gpm pump with your landa just run a hose over to it and mount your motor and pump on the trailer floor somewhere. Thats what i did, except i used a whitco unit. No matter what you do you will probably need to change your relief valve, i would imagine it is rated for a low pressure. 1000 to 2000 psi. There may be a sticker on the valve that tells you what pressure its rated for. Sounds like you are wanting atleast 2500 psi tho. Yes you are right you have to start somewhere but i dont think you will be happy with 3gpm. Its a good starting poing but you need to move up as quick as you can, the more volume you have the faster you will get done which means more $$$. Im only getting 4gpm and i know that i need 6 or 7gpm.

 

[Tom Stetina]

Torque454-I had thought about moving the pump and a gas motor to the floor of the trailer like you mention. The killer is changing the burner to 12v is going to be too much $$$. It doesn't make much sense to run a gas PW AND a gas generator just to get hot water.
The Landa currently has a 220v 1 phase burner/motor in it. It's really a bumb unit unless your going to park it in a shop with 3 phase and use it as a stationary unit. (probably why I got it so cheap) The guns/tips/rotory nozzle/hoses and accessories I got with it are worth more than I paid for the whole deal.
I figure if I have to spend more than $1000 to make it a practicle unit, I'll just trade it in at my Landa dealer for something that's easier to use in the field.

 

[Torque454]

Torque454-I had thought about moving the pump and a gas motor to the floor of the trailer like you mention. The killer is changing the burner to 12v is going to be too much $$$. It doesn't make much sense to run a gas PW AND a gas generator just to get hot water.
The Landa currently has a 220v 1 phase burner/motor in it. It's really a bumb unit unless your going to park it in a shop with 3 phase and use it as a stationary unit. (probably why I got it so cheap) The guns/tips/rotory nozzle/hoses and accessories I got with it are worth more than I paid for the whole deal.
I figure if I have to spend more than $1000 to make it a practicle unit, I'll just trade it in at my Landa dealer for something that's easier to use in the field.

My only concern is that the generator might guzzle the fuel more than a motor on a pump. I dont know. This would just be a temporary setup, right? So how about use a 5hp motor on the pump you have now? It would not have the power to build full pressure, but youd still get full volume. Just use a larger tip. Save you some money that way.

 

[Tom Stetina]

So how about use a 5hp motor on the pump you have now? It would not have the power to build full pressure, but youd still get full volume. Just use a larger tip. Save you some money that way.

Hmmm....Didn't know you could do that. Something to think about. Thanks!