Drain Jetter

[JD6920s]

I’ve started making my own drain Jetter, as I’ve been looking to buy one for some time, then dropped on a hydraulic driven reel off a gulley sucker, so made a start.
I’ve got a high pressure piston pump for the job, but need to source a 50 bar unloader relief valve with a bypass port and a length of the proper thermoplastic pipe, and associated Jetter nozzles.
Does anyone have any knowledge of where best to get these items?

 

[Nukemall]

Are you sure about the 50bar, or is that 50 litres per minute, you really need to know flow and pressure to select your unloader. Don't forget a relief valve for safety as well.
I use these guys:

High Pressure Components and Fittings

 

[Stock]

https://www.whalepartsdirect.co.uk/
seen this stuff in action and they can fair drill through stuff..........................................................................

 

[milkloss]

Exchange engineering are helpful. What sort of capacity is the pump flow wise?

 

[JD6920s]

https://www.whalepartsdirect.co.uk/
seen this stuff in action and they can fair drill through stuff..........................................................................

Thanks I’ll have a look.

 

[JD6920s]

Exchange engineering are helpful. What sort of capacity is the pump flow wise?

Cheers, I’ll have a look. It’s 177 lpm at up to 70 bar max, I’m told.

 

[milkloss]

Cheers, I’ll have a look. It’s 177 lpm at up to 70 bar max, I’m told.

A fair pump then! You'll be looking at bigger stuff than I've been playing with. I picked up a 30lpm 250bar pump a while back, with the right nozzle it's got some pull to it.

 

[JD6920s]

A fair pump then! You'll be looking at bigger stuff than I've been playing with. I picked up a 30lpm 250bar pump a while back, with the right nozzle it's got some pull to it.

Yes, I’m looking at using 200m of 3/4” or possibly 1” pipe. I want the 3 port unloader valve so excess water through the pump is returned to tank if not required, depending on nozzle size and number of holes. It’s all new territory for me, I only really know what I’ve gleaned from google at the moment, but should be straight forward with the right components, when I track them down. I’ve found some pipe here just tonight that will probably be ideal.

200M 1" Yellow Thermoplastic Jetting Hose Andy Guest Jetters

Thermoplastic hoses provide an alternative to our twin-wire reinforced hoses. Lightweight and robust they are suited to long drain runs and have a maximum working pressure of 2900 PSI (200 Bar).

www.andyguestjetters.co.uk

 

[JD6920s]

Are you sure about the 50bar, or is that 50 litres per minute, you really need to know flow and pressure to select your unloader. Don't forget a relief valve for safety as well.
I use these guys:

High Pressure Components and Fittings

To be honest, I’m not all together sure, which is why I’m asking here for more information, so all advice welcome thanks.

 

[2wheels]

passed a bloody great pressure washer on tandem axles on th a90 northbound yesterday. the signwriting on the side said 500 bar.

 

[JD6920s]

passed a bloody great pressure washer on tandem axles on th a90 northbound yesterday. the signwriting on the side said 500 bar.

TBH it’s very surprising what’s out there when you start to look, I was astonished to see this hose test rig for up to 7000 bar!![emoji50]

The Official UK Parker Polyflex® Supplier

Supplier of Parker Hannifin Polyflex UHP Hose Assemblies

www.lister-polyflex.com

 

[milkloss]

Yes, I’m looking at using 200m of 3/4” or possibly 1” pipe. I want the 3 port unloader valve so excess water through the pump is returned to tank if not required, depending on nozzle size and number of holes. It’s all new territory for me, I only really know what I’ve gleaned from google at the moment, but should be straight forward with the right components, when I track them down. I’ve found some pipe here just tonight that will probably be ideal.

200M 1" Yellow Thermoplastic Jetting Hose Andy Guest Jetters

Thermoplastic hoses provide an alternative to our twin-wire reinforced hoses. Lightweight and robust they are suited to long drain runs and have a maximum working pressure of 2900 PSI (200 Bar).

www.andyguestjetters.co.uk

Quite a specialist unloader valve, not sure exchange engineering does they bigger stuff like that, worth a go though as he'll work out nozzle size according to expected speed and the performance of the pump.

Dont forget a breakaway/sacrificial length of pipe for the nozzle. Don't want to go cutting through a nice long thermoplastic hose when you have to dig it up! And regular markings up the main hose so you know where to dig.

 

[JD6920s]

Quite a specialist unloader valve, not sure exchange engineering does they bigger stuff like that, worth a go though as he'll work out nozzle size according to expected speed and the performance of the pump.

Dont forget a breakaway/sacrificial length of pipe for the nozzle. Don't want to go cutting through a nice long thermoplastic hose when you have to dig it up! And regular markings up the main hose so you know where to dig.

Good call, thanks for that.

 

[shumungus]

Cheers, I’ll have a look. It’s 177 lpm at up to 70 bar max, I’m told.

You will need one of these unloader wise VB200/150
200 litres per minute
150 bar working pressure.
All ported in 1inch.

 

[Nukemall]

You have probably already got this covered, but how is the pump powered? Are you able to reduce the speed to operate at lower flow rates? If you are jetting 4" pipes, the high flow relatively low pressure of your pump will cause a lot of water to come back up the pipe if it is blocked, and you will need a hell of a tank to keep you going for any length of time. To do this you would need smaller nozzle for the lower flow to keep the pressure up to your 70bar.

 

[ste stuart]

Built a jetter years ago, still a great tool. You don't need an unloader valve, we have a simple ball valve mounted next to the reel which either sends water back to tank or down the hose. Nozzles need to be made to suit your pump so unless there's a blockage in your nozzle you won't ever over pressure the system.
For overload protection we just fitted a pressure disc which costs a couple of pence but bursts in the event of too much pressure.
Used jetchem for a lot of the stuff and they where always helpful.
if you want to know anything else just ask.

Ste

 

[pappuller]

What options are there out there for budget jetter setups ? We are starting to see a fair few drains silting up this winter and been on sand only exacerbates this issue. Saw a video on the landy jetter setup, what others are about ?

 

[JD6920s]

You will need one of these unloader wise VB200/150
200 litres per minute
150 bar working pressure.
All ported in 1inch.

Cheers, I’ve seen one on a Jetter with a release lever, I’m guessing it’s to assist start up to take the pressure off the pump, but not sure.
Similar to this,

Interpump Timax100 Pressure Regulator - Dual Pumps

www.dualpumps.co.uk

 

[shumungus]

Built a jetter years ago, still a great tool. You don't need an unloader valve, we have a simple ball valve mounted next to the reel which either sends water back to tank or down the hose. Nozzles need to be made to suit your pump so unless there's a blockage in your nozzle you won't ever over pressure the system.
For overload protection we just fitted a pressure disc which costs a couple of pence but bursts in the event of too much pressure.
Used jetchem for a lot of the stuff and they where always helpful.
if you want to know anything else just ask.

Ste

I would disagree, fit an unloader and on smaller pipes you can run a smaller nozzle to keep up the pressure but reduce the flow, you can also use a lance for washdown duties and if you have a restricted or blocked nozzle there is not water pishing everywhere, When I have put them together we use an unloader and a burst disc set up.

 

[shumungus]

Cheers, I’ve seen one on a Jetter with a release lever, I’m guessing it’s to assist start up to take the pressure off the pump, but not sure.
Similar to this,

Interpump Timax100 Pressure Regulator - Dual Pumps

www.dualpumps.co.uk

Put a three port valve just before the reel so you can return to tank for start up, idling, nozzle change or just to stop the water without stop starting the engine/pto.