Specifications

4
THE MORE YOU KNOW ABOUT AUTOMATIC CONTROL VALVES
THE BETTER WATTS ACV LOOKS!
Performance is standard
The design and innovative features incorporated into
every Watts Automatic Control Valve means consistent,
dependable, high performance, positive control and
long life.
Efficient design
T
he main valve, globe or angle pattern, is diaphragm
actuated, hydraulically operated. It consists of only four
major components. The body and cover plus interior
seat and diaphragm/stem assembly, which is the only
moving part in the main valve.
Variable volume cover chamber
A synthetic rubber/nylon diaphragm, of FDA approved
materials, is assembled between the valve body and
cover. This creates a sealed chamber into which line
fluid and pressure is introduced. Varying the amount of
pressure accurately positions the stem assembly to
open, close or modulate the valve as required.
Precise alignment
and stable throttling
A cover bearing and integral seat bearing guide the
stem assembly for precise alignment with the seat.
Coupled with the quad seal retainer plate, this align-
ment assures progressive opening/closing flows, stable
throttling, low friction operation and positive closure.
Drip tight seal
Watts ACV leads the automatic valve industry by being
the first to incorporate the dynamic quad seal. The seat,
retained on 3 1/2+ sides, provides positive closure
while eliminating the need to “bite” into the seal, adding
years to the valve’s life. Each quad seal has two usable
sides.
Fused epoxy prolongs life
This coating is applied under rigorous preparation and
application standards. It is non-porous, improving the
flow coefficiency of the valve and effectively sealing the
casting from interaction with the controlled liquid. The
coating also protects the valve from environmental
attack. The finish prevents mineral buildup and rust (a
major factor in control valve failure), simplifies mainte-
nance, and prolongs the life of the valve.
Multiple function performance
By varying the control/piping arrangement, the Watts
ACV is able to perform a diversity of functions and
applications. Multiple functions performed by a single
valve can result in added system protection and lower
cost to the user.
Simplified Maintenance
The main valve and pilot system can be serviced with-
out removing the valve from the line.
Right valve, Right place, Right time
Watts ACV is committed to providing you with correct
function and material to meet your application
requirements
and prides itself with accurate, calculated
delivery schedules.
STEM
S
TEM NUT/WASHER
DIAPHRAGM
QUAD SEAL RETAINER
QUAD SEAL
DIAPHRAGM
WASHER
SPACER
Q
UAD SEAL
RETAINER PLATE
STEM ASSEMBLY
ACV 127-1
ALTITUDE VALVE - ONE WAY FLOW
ACV 115
PRESSURE REDUCING
ACV 116
PRESSURE RELIEF/SUSTAINING