Installation

INSTALLATION INSTRUCTIONS
Pressure Balancing Valve
Valve Body No. 1-684
as used with Shower Fittings
Illustration 1
Balance
Pressure Valve
w/ Diverter
Floor Line
Back-to-Back Installation
In back-to-back installations, one cartridge
must be rotated 180 degrees to ensure
proper valve operation.
Standard Installation
Balance
Pressure Valve
w/ Diverter
Floor Line
1-594
1-595 Balance
Pressure Valve
w/ Diverter
Floor Line
Back-to-Back Installation
In back-to-back installations, one cartridge
must be rotated 180 degrees to ensure
proper valve operation.
Standard Installation
1-684
1-685 BP Valve asm
with Diverter
Page 1 of 4
NWP-1-684
Standard Installation
Back to Back Installation
Floor Line
Note: This valve is designed 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,
safety 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
supply 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 coldwater 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.