A pressure reducing element, a sensing element ... Others have an integral filter for fluid intake or an attached lubricator for valve operation. Tamper-proof air pressure regulators have security ...

Change Over Regulators Change-over-regulators are combination valves and ... differential pressure between a reference pressure and the pressure of the controlled fluid. Filter, Regulator, Lubricator ...

Water bills may initially look like a trickle, nothing to make your eyes pop out. Although the average American pays about $157 in monthly utility bills, the water component comes down to just $45 ...