Q&A Forum
I'm making my water brake valve now and would really appreciate dimensions of the water brake valve you put pictures up of .
What hp was that valve designed for ?
http://yourdyno.com/brakeabsorber-dynos/
Just comparing hand sizes looks to be about 25mm by 25mm overall, say 25mm by 10mm with the taper on the end . I'm told to get full flow from my pumps
I need a 1.5" hole size in the valve.
From factory my waterbrakes have two separate 1" inlets. The pump guy recommended two , 3hp , 1" in out , 60 psi pumps . He said they will have full flow together through a 1.5" valve.
The water brakes were (as a pair )1100 hp semi trailer dyno factory rating , for constant use . I figure, or hope they are capable of more than the 550hp and was told to get max hp from them i need really good water supply.
Am I over killing it ?
My plan is to make the same shape hole as yours , but have the big end the area of the 1.5" hole. Does this sound reasonable ?
Hi, we have a 1 inch valve from Land and Sea, standard flow, and use the largest dual rotor water brake also from Land and Sea. It looks a bit small, but Land and Sea were clear that it is big enough. It works ok.
Thanks
Tech Talk Animation on How Water Brakes Work
https://www.youtube.com/watch?v=nSNkB0BXnHM
Is you valve connect to the inlet or outlet or both ?
It will be connected to inlet. Outlet has a valve but as I understand. If i have enough water volume going in, it will be wide open so the heat stays down. Unless i can't hold the hp with it wide open , then It will have to be adjusted. This information is not real world experience , just book learning .
Also my brakes have another two inlets , I'm considering plumbing them in too.
There is a lot of general water brake information, but once your looking for specific stuff like the valve it gets harder. This has turned into a bigger job than i first thought . I mean i watched guys on youtube with a waterbrake mounted straight to an engine and fed by a garden hose. I suppose for one off pulls thats ok. Although I might be complicating things too much too.
Yes, this is the typical connection. You control the inlet valve, and then you use a static outlet valve that you may need to adjust a bit depending on the engine. You want a good enough flow so that the system reacts fast, but you need to keep enough water in the brake so it can actually brake enough to hold the engine.