Pack of 2 - EVIL ENERGY 5/32" 4mm Silver Aluminium One Way Fuel Line Check Valve, Non Return Diesel Review

Looks good. The aluminum body looks very sturdy. I use it for low pressure gas (air) so I had to modify the spring in the check valve but it was pretty easy.

As expected, as described. Good business. The product is used to prevent fuel leakage from diesel injection pump. Before installation, the fuel was drained from the pump, which caused difficulties in starting the engine.

I tested this valve with a hand air pump and it holds a pressure of 3 bar/45lb for two hours before I unplug it, look at the picture, I don't know how long it will last but I do will use it in my VW VR6 before the fuel filter.

I really liked these check valves. They are built into my oil separator on my Honda Prelude. The car has seen many pressures up to 16psi so far. I'll increase the boost pressure a bit more once the new engine is built and I'm done with the break-in period.

prevented carburetor backflow, resulting in frequent engine starts. I have these valves on all three of my Kohler wheeled tractors. Mounted immediately after the fuel pump injection and before the carburetor fuel inlet. constant refueling for a quick start

Used to replace the plastic valve on Raritan plumbing. Why they put in a two piece plastic valve that leaks and fails under normal use I don't understand. These metal valves were direct replacements and appear to work well. At least they didn't fill my trunk with water like a plastic one. Recommend. Healthy? 👇🏽

Quality construction, beautifully engraved arrow showing direction of flow. Requires VERY low cracking pressure but absolutely no back flow. it was extremely important for my application. I added a couple of these to my welder with some tees so I can add helium to my argon and argon/CO2 mixes for welding thicker aluminum and MIG stainless steel respectively. Check valves allow helium flow in only one direction and prevent cross-contamination of argon and argon/CO2. Welding gas normally flows at