Specification Sheet

ManualsBrandsWatts ManualsHeating SuppliesLFL100XL3M7, 3/4" Lead Free Extended Shank T & P Relief Valve

Size

⁄4"

CSA Rated. Standard Models are self-closing T&P Relief Valves for

Water Heaters up to 105,000 BTU/Hr.

Watts Series LFSL100XL, LFL100XL , LFLL100XL and LFLLL100XL

have extended inlet shanks for use with the new generation of water

heaters containing extra thick insulation. These valves eliminate the

use of an extension nipple required with standard shank length mod-

els. They feature Lead Free* construction to comply with Lead Free*

installation requirements.

The combined 2-in-1 Temperature & Pressure relief valve provides the

least expensive and proven means for protection against both exces-

sive temperature and pressure emergency conditions.

Watts Self-closing combination T&P relief valves are design certified,

rated and listed by CSA to the requirements of ANSI Z21.22; and by

the National Board to the requirements of ASME Section IV.

They provide fully automatic temperature and pressure relief protec-

tion for hot water storage tanks and heaters up to 105,000 BTU/Hr.

The 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 setting 75, 100, 125,

150psi (5.3, 7.0, 8.8, 10.6 bar).

Features

• Model LFSL100XL Extended inlet model for installations with thick

insulation. Suitable for water heaters with up to 1

⁄4" (44.5mm)

of insulation

• Model LFL100XL Extended inlet model for installations with thick

insulation. Suitable for water heaters with up to 2" (50.8mm)

of insulation

• Model LFLL100XL Extra extended inlet model. Suitable for water

heaters with up to 2

⁄2" (63.5mm) of insulation

• Model LFLLL100XL Extra extended inlet model. Suitable for water

heaters with up to 3" (76mm) of insulation

• Thermostats with special protective coating

• All Lead Free* brass body

• Stainless steel spring

• Thermostat is accurate and proven. Exclusively designed and

manufactured by Watts

LFLLL100XL

LFLL100XL

LFL100XL

LFSL100XL

Series LFSL100XL,

LFL100XL, LFLL100XL

and LFLLL100XL

Extended Shank T&P Relief Valves

Following installation, the valve lever MUST be operated AT

LEAST ONCE A YEAR to insure that the waterways are clear.

Certain naturally occurring mineral deposits may adhere to the valve,

rendering it inoperative. When manually operating the lever, please take

precautions to avoid contact with hot water that may discharge and to

avoid water damage. 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.

This device is designed for emergency safety relief and shall not be

used as an operating control.

Specifications

Temperature & Pressure Relief Valves

Each hot water storage heater shall be equipped with a CSA and

ASME rated automatic temperature and pressure relief valve to pro-

tect the heater from excessive pressure and excessive temperature.

The device shall be design certified, rated and listed by CSA to the

requirements of ANSI Z21.22; and by the National Board to the

requirements of ASME Section IV. The BTU discharge capacity of

the device shall be in excess of the BTU input rating of the heater.

The Lead Free* Extended Shank T&P Relief Valves shall comply with

state codes and standards, where applicable, requiring reduced

lead content. Watts Series LFSL100XL, LFL100XL, LFLL100XL or

LFLLL100XL.

WARNING

For Water Heater Applications

ES-LFSL-100XL/LFL100XL/LFLL100XL/LFLLL100XL

LEAD FREE

Job Name

–––––––––––––––––––––––––––––––––––––––––––

Contractor

––––––––––––––––––––––––––––––––––––––––––––

Job Location

–––––––––––––––––––––––––––––––––––––––––

Approval

–––––––––––––––––––––––––––––––––––––––––––––

Engineer

–––––––––––––––––––––––––––––––––––––––––––––

Contractor’s P.O. No.

––––––––––––––––––––––––––––––––––

Approval

–––––––––––––––––––––––––––––––––––––––––––––

Representative

––––––––––––––––––––––––––––––––––––––––

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.

*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

Summary of content (2 pages)

PAGE 1
ES-LFSL-100XL/LFL100XL/LFLL100XL/LFLLL100XL For Water Heater Applications Job Name –––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––– Job Location –––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––– Engineer –––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No.
PAGE 2
Series LFSL100XL, LFL100XL, LFLL100XL and LFLLL100XL Model LFSL100XL Suitable for water heaters with up to 13⁄4" (44mm) of insulation Model LFL100XL Suitable for water heaters with up to 2" (50.8mm) of insulation Model LFLL100XL Suitable for water heaters with up to 21⁄2" (63.5mm) of insulation Model LFLLL100XL Suitable for water heaters with up to 3" (76mm) of insulation Direct Side Tapping For Heaters with Direct Top Tapping Vertical discharge line must be installed with its direction downward.