Submittal Sheet
Series LF100XL
Temperature and Pressure
Relief Valves
ASME Rated, CSA Listed. Self-closing T&P Relief Valves
for Water Heaters up to 105,000 BTU/Hr.
The combined 2 in 1 T&P relief valve provides the least expensive
and proven means for protection against both excessive tem-
perature and pressure emergency conditions.
Provides fully automatic temperature and pressure relief protec-
tion for hot water storage tanks and heaters up to 105,000 BTU/
HR. Series LF100XL furnished with test lever and extension ther-
mostat for installation in the hot water outlet line or directly in the
tank tapping. Temperature sensing element must be immersed in
the water within the top 6" (152mm) of the tank. Male inlet and
female outlet. Temperature relief 210°F (99°C). Standard settings
75, 100, 125, 150psi (5.3, 7.0, 8.8, 10.6 bar).
Features
• Series LF100XL Size
3
⁄4"
• ASME Rated, CSA Listed
• Features a unique thermostat with special
thermo-bonded coating
• Lead Free* copper alloy body
• Stainless steel spring
• Thermostat is accurate and proven. Exclusively designed
and manufactured by Watts
NOTICE
Maximum system operating pressure must not exceed 75% of valve
set pressure.
Specifications
T&P valves
Each water heater and hot water storage tank shall be
equipped with a CSA and ASME Rated automatic temperature
and pressure relief valve to protect the heater from excessive
pressure and temperature. The device shall be ANSI Z21.22
certified. The BTU discharge capacity of the device shall be
in excess of the BTU input rating of the heater. The T&P valve
shall be a Watts Series LF100XL.
LF100XL
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 with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
For Water Heater and Hot Water Storage Tank Applications
ES-LF100XL
LEAD FREE
*
Job Name
–––––––––––––––––––––––––––––––––––––––––––
Contractor
––––––––––––––––––––––––––––––––––––––––––––
Job Location
–––––––––––––––––––––––––––––––––––––––––
Approval
–––––––––––––––––––––––––––––––––––––––––––––
Engineer
–––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No.
––––––––––––––––––––––––––––––––––
Approval
–––––––––––––––––––––––––––––––––––––––––––––
Representative
––––––––––––––––––––––––––––––––––––––––
*The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
NOTICE
Inquire with governing authorities for local installation requirements
The information contained herein is not intended to replace the full
product installation and safety information available or the experience
of a trained product installer. You are required to thoroughly read all
installation instructions and product safety information before begin-
ning the installation of this product.
NOTICE
Following installation, the valve lever MUST be operated
AT LEAST ONCE A YEAR to ensure that the water-ways
are clear. Certain naturally occurring mineral deposits may
adhere to the valve, rendering it inoperative. When manually
operating the lever, water will discharge and precautions must be
taken to avoid contact with hot water and to avoid water dam-
age. BEFORE operating lever, check to see that a discharge line
is connected to this valve directing the flow of hot water from the
valve to a proper place of disposal otherwise personal injury may
result. If no water flows, valve is inoperative. TURN OFF THE
WATER HEATER AND CALL A PLUMBER IMMEDIATELY.
WARNING
!
This device is designed for emergency safety relief and
shall not be used as an operating control.
WARNING
!