Chris S 14 Report post Posted October 8, 2006 This "el cheapo" coupler exploded on me the other day. Good thing I was around the corner of the house. I didn't see any BB's around, so they probably became projectiles. Share this post Link to post Share on other sites
R L S 14 Report post Posted October 8, 2006 Yeah that has happened to me three differant times. Kinda nuts that it happened. Good thing you werent hurt. Share this post Link to post Share on other sites
Paul Kassander 26 Report post Posted October 8, 2006 Wow, what pressure are you running? Share this post Link to post Share on other sites
Camelot 68 Report post Posted October 8, 2006 Holy Cow! I didn't know that was possible! Glad you didn't get hurt... Share this post Link to post Share on other sites
R L S 14 Report post Posted October 8, 2006 Paul, I never run more than 3000psi and most of the time I am around 2000psi. I havent had one break in awhile since I changed up my downstreaming method though. Share this post Link to post Share on other sites
Paul Kassander 26 Report post Posted October 8, 2006 That is really strange, I have never seen that happen with such a low pressure. But like anything I suppose there are some bad runs of stuff. Share this post Link to post Share on other sites
R. Williamson 14 Report post Posted October 8, 2006 I have been pressure cleaning since I was a kid, I have never seen that happen! Share this post Link to post Share on other sites
John T 744 Report post Posted October 8, 2006 In 11 yrs of powerwashing with machines that range from 3000-4000 psi I've never seen that happen..Thank God. I did break couplers, got them crush by a brinks truck, Abused them any which way you can but never had one explode. Could it be that your running bleach thru your hoses and it caused the coupler to become brittle. Caustics are bad on Metal. Share this post Link to post Share on other sites
Chris S 14 Report post Posted October 8, 2006 Wow, what pressure are you running? TS2021, I think it's 3500. It happened when the unloader was bypassing back to the tank. No more "el cheapo" for me. I'm just glad I wasn't standing beside it. Share this post Link to post Share on other sites
PRESSURE PACKED 14 Report post Posted October 9, 2006 a smart man learns from his mistakes. a brilliant man learns from other peoples mistakes,..thanks man Share this post Link to post Share on other sites
John Orr 206 Report post Posted October 9, 2006 One of the reasons I like a flow-type unloader is that there is virtually no pressure in the hose when in bypass. If you pull hoses, not having pressure in them makes them much easier to pull, with less stress on everything - including me. I would think that the mfg of that coupler would like to analyze it to determine what happened. If there is a bad batch out there, they may need to recall them. Share this post Link to post Share on other sites
PLD 14 Report post Posted October 9, 2006 Not that I'd want to be holding it, but the results of a catastrophic seperation look a bit more violent than the seperation really is. I have on more than one occassion intentionally blown apart a coupler when it was stuck. Just twist it a bit, lock back the collar, fire up the machine, and wait. It typically takes 2-3 minutes and pops apart. Since the pressure goes to zero almost instantly after seperation, the couplers rarely move more than 6-12 inches. Share this post Link to post Share on other sites
PWkid 79 Report post Posted October 9, 2006 I run all K-7 flow unloaders and have had sockets blow apart on me several times. The chemical makes them weak. I will say I have never had a Hansen SS qc blow apart only when I feel cheap and buy china made. Share this post Link to post Share on other sites
