A couple of 12VDC 3-way stainless universal solenoid valves for water use with little success.

My confusion has arisen from the observations I have made regarding fluid flow through narrow passageways in fluid filled enclosed channels.

You might look at this link for a relay application, either a TIR or AVR or possibly another item...

Valve rating is nothing but the maximum pressure a valve can withstand or a pressure which valve designed.Class are meant for Flange design.

And the valves are manufactured based on API 6D standards. The leakage tests required in API 6D are mostly hydrostatic tests which are shell test(2200psi) and closure test(1650 psi).

After repeated failures due to corrosion, they took a commercial valve and under the direction of an experience ME modified it by creating a new, sturdier valve body made from a different alloy and th

Process design conditons are (steam) approx. 20 psig and 275 degF.Valve supplier quoted a class 150# valve with a very larger motor operator;

Conveyor as well as stand-alone automated equipment, Numatics AC/DC solenoid valves are used to feed air cylinders to produce motion in lifts, tooling, and slide mechanisms.