Pressure Reducing Valve Sizing Calculator

TO PROPERLY SIZE A WATTS PRESSURE REDUCING VALVE

Enter the appropriate information in the boxes below.

* Required Fields

Select PRV Model*	Select LF25AUB-Z3 LFN45B LFN55B LFU5B-Z3 LF223
Flow Target*	GPM
Inlet Pressure*	psi
Set Outlet Pressure*	psi
Minimum Outlet Pressure at Target Flow*	psi

Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.