I'm looking for electronically controllable valves that can be partially opened (i.e. not just fully opened). It will be used in a water pump system. Does anyone know of any companies that sell such valves?

 

Joucamatic for air
Vickers for hydraulic

 

There are at least three types of these valves; digital (discrete ports), digital inteface (analog valve with serial control), and piezo. Parameters such as flow rate, pressure, and temperature will likely decide which type you need. I work with some of these companies. Let me know if you would like more info.

John Catch
InFLOW, INC.
http://www.inflowinc.com

 

I usually use Fisher or Baumann valves. They are sold by emerson process control. They work good and have good delivery times.

I have also used Worcester a few times, it works good but the delivery time was always 2x the quoted delivery.

 

U can use throttle type valve for proportional control. such type of valves are positioner mounted which helps to maintain valve's position at desired level. U can search the following web site for the same.

http://www.fisher.com (Emerson Process Management)
OR
http://www.emersonprocess.com (Emerson Process Management).

Also Search at any search engine like google, Ixquick, Dogpile etc.

Mesonelon
KOSO
Valvetaech

By
Shams

 

Hi,

I too am looking for a inexpensive valve with digital control, to be used in a potential product we wish to develop. Could you please let me know if there is such a valve we might be able to use?

Cheers.

Dilanka