After more than a year of laboratory research work, NRMCA (National Ready Mix Concrete Association) engineers have developed a mixture proportioning software program for pervious concrete.

In addition, the proportioner allows for the cost-saving and environment -friendly testing of the proportioning rate, during which no foam is produced. This means that no foam agent is used in the ...

Most adjustable brake proportioning valves are very simple devices designed to fit between the master cylinder and the rear brake line. The valve offers a range of adjustment that decreases master ...

The proportioning valve reduces the pressure to the rear brakes. Regardless of what type of brakes a car has, the rear brakes require less force than the front brakes.

Since many of the brake proportioning valve brands we've listed above come standard with a one-, two-year, or even a limited lifetime warranty, we believe it just makes more sense to replace your ...

So far, you know what a proportioning valve is, basically how it works, and why you need to install one. Once you've installed it, you need to adjust it. This is the fun part. Get a friend and ...

Mathematics and geometry can function as integral elements in the process of organizing visual data. The author provides a brief historical perspective on artists' use of mathematics and geometry, ...

FoamPro 1600 series proportioning systems are specifically designed for Class A foam operations. Ideal for wildland and brush vehicles, 1600 series systems easily install into new or existing ...

Basic Foam Operations - Part 4 Up to this point, we have covered a lot of valuable points. The proper proportioning of foam concentrate is another critical piece in the foam application process.

Proportioning Rate Testing A ball valve can be used to switch between actual injection of the foam agent into the extinguishing water and returning it into an unpressurized foam agent tank.