6
YT-320 / 325 series
2.7 Operation
Logic
As supply pressure from regulator is connected to supply port and signal pressure is
connected to supply port, upper diaphragm (
○
3
) and diaphragm assembly will get pushed
down. As they are being pushed down, they push stem (
○
7
) and supply pressure will be
exhausted to output port. As output and supply pressure is equalized, stem (
○
7
) will be
moved to keep signal and output pressure the ratio of 1:1. If output pressure is higher than
signal pressure, diaphragm assembly will be raised, and output pressure in the exhaust ring
(
○
4
) will be exhausted through exhaust port. The sensitivity of output pressure to signal
pressure can be adjusted by setting adjust bolt (
○
1
).
2.8 Dimension
