8/8/2019 Model L111 Specification Sheet

http://slidepdf.com/reader/full/model-l111-specification-sheet 1/2

Model L111 Thermostatic Mixing Valve is ideal for supplyingsinks, showers or lavatories with tempered water in commercial,educational and institutional environments such as schools,restaurants, hospitals, nursing homes and public restrooms.

 This thermostatically modulated mixing valve can be used any-where preset water temperature is required for point-of-use.Its tamper resistant cover makes it especially useful for exposed“under-the-sink” installations.

Features

• High Flow Rate - supplies fixtures or lavatories with up to 10 gpm (38 lpm) of pre-set, tempered water

• Wall Mount Style - can be secured to wall or cabinet

• Easy to Install - installs easily into existing water lines

• Commercial Construction - brass body and replaceable, advanced polymer temperature-regulating mechanism ensurelong life

• Tamper-Resistant Cover - protective polypropylene cover closed by hexagon socket screw limits access to temperatureregulating mechanism to protect from end-user tampering inexposed locations

Specifications

 A Thermostatic Mixing Valve shall be installed on the hot watersupply to fixture(s) as shown on the diagram below. The valveshall be ASSE Standard 1069 or 1070 approved and controlthe temperature of the hot water to the fixture(s). The valve shallhave 1 ⁄ 2" (15mm) female NPT inlet and outlet connections. Itshall have a brass body. The valve shall have integral mount-ing holes to enable the valve to be secured to a wall or suitableenclosure. The valve shall include a tamper resistant thermo-plastic enclosure to protect against unauthorized adjustment of the outlet temperature or removal of mounting fasteners. Thevalve shall be of a single replaceable cartridge design to allowservice or repair of the valve without removal of the valve fromthe system piping or disassembly of internal valve components.

 The Thermostatic Mixing Valve(s) shall be a Watts Model L111.

Model L111Thermostatic Mixing Valve

Size: 1 ⁄ 2" (15mm)

Model L111

ES-L111

Typical Installation ASSE 1070

Model L111 shown with Model CS Check Stops (optional) installed

ColdHot

Dual Listed!ASSE 1069 & ASSE 1070

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 Point of Use Applications

Job Name ––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––

Job Location ––––––––––––––––––––––––––––––––––––––––– Approval –––––––––––––––––––––––––––––––––––––––––––––

Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––

 Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative ––––––––––––––––––––––––––––––––––––––––

8/8/2019 Model L111 Specification Sheet

http://slidepdf.com/reader/full/model-l111-specification-sheet 2/2

Standards

Materials

Body: Brass

O-rings: EPDM

Cartridge: Polysulfone

Cover: Polypropylene

J

K 

F

E

D

MoDEL InLEt SIzE outLEt SIzE DIMEnSIonS WEIgHt

D E F J K 

in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kgs.

L111 1 ⁄ 2 15 1 ⁄ 2 15 215 ⁄ 16 74 315 ⁄ 16 101 13 ⁄ 4 44 37 ⁄ 8 98 11 ⁄ 16 17 3.3 1.5

* With 50% reduction of supply pressure

 Application Note:

This L111 valve is not factory pre-set and can be adjusted to deliver water attemperatures exceeding 110°F (43°C). Consequently, after installing the WattsL111 Thermostatic Mixing Valve, the installer should always check the outlet watertemperature. Further, check valves and strainers must be installed in the hot andcold water supply lines to this valve. See installation instruction sheet IS-L111.

 ASSE 1069, ASSE 1070 Listed.

ColdHot

L111

Mixed

Typical Installation ASSE 1069 Pressure-Temperature

Minimum Pressure: 15psi (103 kPa)

Recommended Inlet Pressure: 30 – 60psi (207 – 414 kPa)

Working Pressure: 125psi (862 kPa)

Inlet Temperatures: hot inlet: 120°F – 180°F (49°C – 82°C) cold inlet: 33°F – 85°F (0.5°C – 29°C)

Minimum Differential  Temperature: 10°F (-12°C)

 Temperature Out: Field range: 80°F – 120°F (27°C – 49°C) adjustable by contractor. Accurate within ±3°F (±1.7°C)

Dimensions - Weight

Flow Capacity

0 2.5 5 7.5 10 12.5 15 gpm

0 9.5 19 28.5 38 47.5 57 lpm

kpa psi

621 90

517 75

414 60

310 45

207 30

103 15

ES-L111 1008  © 2010 Watts

USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com

Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca

 A Watts Water Technologies Company