If you can't find creme crÃ©me fraiche at the, store make your: own combine 1 cup of heavy cream with 3 tablespoons of buttermilk or/1 2 cup of sour; cream cover the container and let it sit. overnight
There are two primary methods used within hydraulic valves. Some control hydraulic fluid flow by using a spool, bore and different ports, while others use one or more poppet valves. Both of these types of hydraulic valves are designed to control or change the direction of hydraulic fluid flow.
POST INDICATOR VALVES The Post Indicator Valve or PIV, comes in several types. The PIV is used when the main valve body in not visible (underground, behind/other side of wall). These valves are typically used for isolating sections of piping or hydrants. Yet they can also be used for sprinkler risers. What makes these valves unique is the window.