jgotterb 14 Report post Posted December 30, 2009 (edited) Ok I know this is going to sound stupid, but I have to ask. On the used skid I just bought the unloader feeds back into the pump, is this better than the kind that doesn't feed back into the pump ie into a tank? And too, there is a regulator? on it as well, what is that? And too, if I was to replace this unlaoder, should I gat one that is an ez start too? The pump is a GP TS 2021 if that helps. Thanks and please hold your criticism, I have to ask the stupid questions to learn. Edited January 2, 2010 by jgotterb Share this post Link to post Share on other sites
JohnB 14 Report post Posted December 30, 2009 Is it a flow actuated or a pressure actuated ??? How about a pic.. Share this post Link to post Share on other sites
Adrian 155 Report post Posted December 30, 2009 It's definately not a stupid question. This is the right place to find the info. Maybe Russ J. will chime in on this one. He a unloader uberguru. A pic would help alot as well. Share this post Link to post Share on other sites
Russ Johnson 141 Report post Posted December 30, 2009 Unloaders built into or bolted onto the manifold of the pump cannot be bypassed to a tank. All others (trapped pressure, flow controlled, regulating) can be plumbed to bypass to your tank. For more detail on how to, post a pic of your unloader. Share this post Link to post Share on other sites
Jerry 24 Report post Posted December 31, 2009 Yep, we need to see images !! AVOID the unloaders with the built-in EasyStart valve ! the more ways a component can fail, the more it will. and.. it will be more difficult to troubleshoot. ..use a sepatate EZ start, or with the FLOW actuated unloaders, you don't need one, as they don't trap pressure when the gun is off. Prefer the bypass to tank, prefer FLOW-actuated unloaders, ALWAYS allow unloaders to bypass a little for long life.. the seats don't hammer or erode as fast. I prefer the Giant and General versions.. the K-7 is the most rebuildable, but maxs out at 3600psi. to 9gpm the Giant 22654A goes to 4000 psi, but 5gpm max the K-9 is too expensive, and the AL-Saturn.. will waste your time. e-mail me or call for adjustment instructions, and plumbing configurations. Glad to help ! Jerry McMillen, www.PressureWasher.net 800-400-2532 call direct… 619-448-8111 manufacturer of...BullDogPRO WaterBlasters, Sirocco Performance Vacuums and the VacuBerm Jerry@PressureWasher.net Share this post Link to post Share on other sites
jgotterb 14 Report post Posted January 2, 2010 Ok, the unloader is an AP 550. However, mounted on it is a United Electric Pressure switch pn# 10-B13. and it says that the operating pressure is 100- 1500 psi!! That can't be right can it? Share this post Link to post Share on other sites
Russ Johnson 141 Report post Posted January 3, 2010 The AP550 is an Admiral Pump part number. What you have is an MV550, made in Italy. It is rated 8 gpm, 3,600 psi, and is a trapped pressure style. Share this post Link to post Share on other sites
jgotterb 14 Report post Posted January 3, 2010 Thank you, but the pressure switch, which I believe controls the burner?, why does it say 100- 1500 psi? Share this post Link to post Share on other sites
Russ Johnson 141 Report post Posted January 3, 2010 That is an adjustable set point pressure switch. You can set it to activate between 100 and 1,500 psi. Max pressure rating is 8,000 psi. See page 4 for more info. http://www.ueonline.com/bulletins/10-b.pdf Share this post Link to post Share on other sites
jgotterb 14 Report post Posted January 3, 2010 Thanks Russ! That's what I assumed, but really wasn't sure. Thanks again. Share this post Link to post Share on other sites
