ELECTRONIC VALVE CONTROLLERS

Brand	Owner	Address	Description
NDX	Valmet Flow Control Oy	Vanha Porvoontie 229 FI-01380 Vantaa Finland	electronic valve controllers; electric [, ] * and * electro-pneumatic [, electro-hydraulic and electronic ] valve [ actuator and ] positioners [ ; electronic sensors for measuring and controlling valve performance; signal processors; electronic switches and position transmitters for valves ];[ valves being parts of machines; valve parts as machine components; control valves being parts of machines; ] pneumatic [ and hydraulic ] valve [ actuators and ] positioners;
	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.