ELECTRONIC VALVE CONTROLLERS USED

Brand	Owner (click to sort)	Address	Description
XR	PENTAIR FLOW CONTROL AG	FREIER PLATZ 10 8200 SCHAFFHAUSEN Switzerland	Electronic valve controllers used to control valve actuators in industry and commercial applications;
XR	Tyco Valves & Controls, Inc.	10707 Clay Road Houston TX 77041	Electronic valve controllers used to control valve actuators in industry and commercial applications;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A distributed hydraulic system having a plurality of hydraulic functions each including a hydraulic actuator, a valve assembly that controls flow of fluid to the hydraulic actuator, and a function controller which operates the valve assembly. The function controllers exchange messages over a communication network which has a finite bandwidth. Access to the network is controlled by determining which function controllers govern high priority operations and allowing those function controllers to send messages as often as once every first interval of time. The other function controllers are limited to sending messages no more often than once every second interval of time, which is longer than the first interval of time.