Hello, I have a new to me Simpson belt drive 4200 machine. I need help identifying what the two ports on the far right are. I would have thought one is a bypass to run to a buffer tank but I am not sure which either of these are. One is stamped OUT (the top port) and IN. The IN port has a plastic plug and the OUT has a brass plug.
Ultimately I am just trying to determine which one to use as a bypass.
It’s stamped in the pump. IN and OUT. They’re giving you the option to have your suction and pressure inlet/outlet on either the left or the right.
So to be sure I understand, they are just redundant ports for the water feed and high pressure line? Do you see any potential ports for the bypass ? Thanks!
Correct. Bypass should be directed to buffer tank if you have one. If not, they sell a T-shape piping to have it directed to your pre-plumbed inlet. Highly recommend getting a buffer tank though. Does not have to be big if it’s a small unit like 4 gpm.
Bypass back to buffer is off your unloader and it appears you have a built in unloader. Tak a pic of that. You probably aren’t gonna like the answer your seeking.
I’m a few days late on this one but you should be able to plug the port on the unloader and use the other side as your “out”. You’ll have to purchase a separate unloader, unloader block, and whip line. You can then have an unloader with a bypass. Most pumps with a built in unloader don’t give you an alternate “out” option so I’m surprised it has a plug there.
Okay, I am jumping back into this. Sounds like I have to buy a new unloader valve to get a bypass outlet / port. I hope these pics help to show the entire pump.
Bottom line is that I want to run a bypass line off this pump and from the initial answers it seems like this current configuration has NO option to run a bypass line. I will have the bypass line run to my buffer tank once I determine what’s needed to get a bypass line on this.