Watts PLT User Manual
Potable hot water expansion tank, Installation instructions model plt-35, Pressure — temperature
Potable Hot Water Expansion Tank
Installation Instructions Model PLT-35
IS-PLT-35
Pressure — Temperature
PLT-35 Order No. 0067373
Max. Pressure: 50psi (10.3 bar)
Max. Temp: 200 °F (93ºC)
Tank Volume: 14.0 gal. (53 liters)
Tank Acceptance: 5.6 gal. (21.2 liters)
Air Pre-charge: 20psi (138 kPa)
Connections Size: 1" (25mm)
Diameter: 16.0" (406mm)
Length: 21.7" (551mm)
Weight: 32 lbs. (15 kgs.)
Acceptance Volume
AIR SIDE
PRE-PRESSURE
WATER SIDE VOLUME
AT 150 psi (gallons)
psi
kPa/bar
PLT -35
20
138 kPa
10.7
40
276 kPa
9.2
60
413 kPa
7.6
80
551 kPa
6.1
Watts
Shutoff Valve
Watts
Backfl ow
Preventer
W
ater Pressure Gauge
Water Heater
Expansion
Tank
To System
Watts
T&P Safety
Relief Valve
Discharge Line
Watts Pressure
Reducing Valve
Figure 1
Water
Supply
Certifed to
ANSI/NSF 61
(73°F/23°C)
PLT-35
! W A R N I N G !
Improper installation, adjustment, alteration, service or maintenance
may cause property damage, serious bodily injury or death. Read
instructions completely before proceeding with installation. Only
qualified personnel should install or service this equipment in
accordance with local codes and ordinances.
This Expansion Tank is designed and intended for water storage at
a maximum pressure of 150psi (10.3 bar) and a maximum tempera-
ture of 200°F. (93ºC) Any use other than for potable water or at a
sustained or instantaneous pressure in excess of 150psi or 200°F
is UNSAFE and may cause property damage, serious bodily injury
or result in death.
Do not exceed 80psi (5.5 bar) air charge. Air charge pressures
exceeding 80psi (5.5 bar) could become hazardous and will void
any and all warranties, either written or implied. Failure to follow
these instructions may cause property damage, serious bodily
injury or death.
Disclaimer: The manufacturer of this tank does not accept any liability
or other responsibility for personal injury or property damage resulting
from improper use, installation or operation of this tank or the system
of which it is a part.
Notice: This Expansion Tank, like all Expansion Tanks, may eventually
leak. Do not install without adequate drainage provisions where water
flow will cause damage.