Specification :

Function principle
The balancing valve, could automaticly control the connected angle seat valve' s open and close, to keep a certain working pressure of the equipment.
First, set a certain air pressure for the S1 port, then the air pressure of S2 port will change from time to time;
when ( S1-S2)  0.1bar, the port A will open, the angle seat valve will be opened;
when ( S2-S1)  0.1bar, the port A will close, the angle seat valve will be closed by spring force;
Advantages:
Automaticly adjusting and working, no other people or device needed
High sensitivity: the pressure change to + / -0.1bar, balancing valve will auto switch

Techincal data:
Port Size:
P, A: G1/ 4" , S1, S2: G1/ 8"
Pressure range:
S1 port: certain pressure, 0.2-4bar, you can set it on your request
S2 port: sampling pressure from equipment pipelines, will be in range S1+ / -0.1bar
P, A port: according to the control pressure of the connected angle seat valve, normally 2-8bar
Temperature range: 0-100° C