Installation Sheet

INSTALLATION INSTRUCTIONS
Pressure Balancing Valve
Valve Body No. 1-685
as used with Tub and Shower Fittings
saf
ety and the reliability of this valve, be certain to familiarize yourself with these instructions.
Operation
The pressure balancing cartridge contained in this valve
compensates for pressure fluctuations in the water sup-
ply system through a spool and sleeve pressure balancing
mechanism. The outlet temperature will change by no
more than a mere ±2°F (1°C) with a 50% drop in either
the hot or cold water pressure. Even if the cold water
pressure fails completely, the anti-scald design will reduce
the flow rate to a safe level ensuring reliable protection
against scalding. The built-in check valves prevent cross
flow between the hot and cold supplies.
Illustration 1
1-685
Floor line
Tub / Shower Installation Shower / Hand shower Installation
Page 1 of 5
NWP-1-685
Note: This valve is deisnged to fit in a 2" X 4" stud wall (or thicker) installation. Use stem extension
kit #1-249 (sold seperately) if valve installed is too far away from the finished wall.
Description
This valve is precision engineered to provide satisfactory performance provided it is installed and operated in
accordance with our recommendations contained in these instructions. In order to fully enjoy the comfort,