About the Flow characteristic of Winvall products:

● Economical series: cheap price on/off control valve. 

● Enhanced version: better quality on/off control valve. 

● Flow control series: flow rate control valve. 

● Linear flow characteristic series: V groove ball valve with V ball core. Please tell us before ordering. We can offer customized service.

Following is our motorized ball valves testing video.

https://youtu.be/TMKn6sFs2Ps

Yuri Tan
www.electric-ballvalve.com
[email protected]
Whatsapp: +86 13808414262