North Star Proven Performance Northstar Pressure Washer Pressure Gauge - 5000 PSI, 3/8in. Fitting

funktioniert sehr gut

Setting the proper working pressure is key to setting up (or diagnosing) a pressure washer. I've found that the critical unloader valve is rarely set properly. Adjusting it ensures top performance and protects the pump. This gauge seems to work fine, though I didn't have a standard (calibration) gauge to compare it to. Movement is filled with mineral oil, and the damping worked fine in use. 5,000 PSI range is plenty for most portable pressure washers. Nice SS case, and good 3/8" quick disconnects I was able to diagnose a failing AR VMX 3G30D, and brought it back to life with new seals, valves, and unloader. The Valley Industries gauge then allowed unloader set up and performance check. I set the AR to ~2500 psi trigger pulled (3.5 orifice nozzle zero degrees ); 2850 psi trigger closed; with no pressure spike. This is about right for a 3000 psi pump. Make sure you use a new zero degree nozzle of correct orifice size when setting up yours, and don't allow trigger off pressure to exceed pump psi spec. Note that a good unloader is priceless (I used an AR 3 Gymatic) BTW, pressure is important, but its GPM that really makes a difference. Failing unloader or too high PSI setting will kill any pump in a hurry This gauge is a great tool - get one!

Used on gas pressure washer. Works perfect!!

Quite happy with this pressure gauge I use it every now and then worth every penny

Pressure washing is one of the services I offer through my landscaping business, so a job came up and this is one attachment I didn't have for my pressure washer. A customer wanted me to pressure wash a side of his house which is made of synthetic stucco. That required turning the pressure down to 600 psi or just below. So I wanted something more accurate then just trying to guess if it was low enough. To give an idea of the machine I put this on, it has a Honda GX 340 engine, and an AR pump that says it puts out 3,200 psi at 4 gpm. Of course that's all variable depending on different things, but this is about the gauge so, I'll explain my experience. I don't know for sure what the original specs are based on, but I put a K&N air filter on my machine, use an iridium spark plug, and Royal Purple oil. Maybe that's why my standing pressure built up to 4,500 psi on this gauge. Then working pressure depends on the attachment, but I've noticed it's only 2,000 to 2,500 usually. I was easily able to drop the pressure down to spot on 600 psi with this gauge. I've used it quite a few times since purchase and it continues to work great. I really like having the ability to see what the pressure I'm working with actually is. It easily just plugs right in with the quick connect set up. Hoses easily plug right into it. It's not that expensive, so it's a good ad on attachment for any pressure washer with a standard quick connect style hose. It let me know that I should get hoses and the gun that are designed to take 5,000 psi or more to make sure my standing pressure doesn't go beyond rating. It'll show you what you're actually working with.