Constant Flow Valve CF-90 series / Brass, Screw 1/2" ~ 1", Flow Rate 1 ~ 40 L/Min.

Type : Brass, 2 ~ 7 Bar, 1 ~ 40 l/m, Wafer
Application : Water
Flow Rate : 1 ~ 40 L/Min.
Inlet Pressure : 2 ~ 7 Kg/Cm2
Temperature : 90 C
Size : 1/2" ~ 1"
Connection : Screw BSPT
Tolerance : +/- 20 %
Body : Brass

Yoshitake Constant Flow Valve CF-90 is Automatic Flow Control Valve that maintains constant Flow Rate despite changes in line pressure. Flow Option 1 ~ 40 L/Min at Pressure Range 2 ~ 7 Bar. Ideal for Low Capacity Plumbing & HVAC use.
https://www.yoshitake-inc.com/prod/product?no=431