36C26220Q0014-004.pdf

Job Name ______________________________________ Contractor ______________________________________

Job Location ____________________________________ Approval ________________________________________

Engineer ________________________________________ Contractor’s P.O. No. ____________________________

Approval ________________________________________ Representative __________________________________

For Residential and Commercial Applications

Series USG-B Under Sink Guardian®

The USG-B-M2 Under Sink Guardian® 3⁄8" (10mm) compression and Quick-Connect fitting ther mo stat ic mix ing valves maintain and limit hot water to desired se lect able temperature between 80°F and 120°F (27°C and 49°C) with flow rates as low as 0.5 gpm (1.9 lpm) and as high as 2.25 gpm (8.5 lpm). The mix ing valve is listed to ASSE Standard 1070 for sin gle fix ture applica-tions and IAPMO cUPC. The su pe ri or flow char ac ter is tics of these valves provide tem per a ture con trol with low pres sure drop. As an add ed fea ture, the USG-B-M2 in cor po rates dual check valves to pro tect against cross-flow and integral screens to filter out debris.

Features

mis-adjustment

• Built-in check valves prevent migration of hot water to cold and cold water to hot water piping

to filter out debris

Applications The unit is intended for under sink installation to con trol the hot water temperature and minimize the occurrence of ac ci den tal scald ing. The water temperature must be adjusted by the in stall-er using a thermometer to measure the hot water tem per a ture at the faucet outlet. Maximum tem per a ture of 105°F (41°C) is recommended.

Specifications A Thermostatic Mixing Valve shall be installed on the hot water supply to the fix ture. The valve shall be ASSE Standard 1070 and IAPMO cUPC listed and control the temperature of the hot water.

It shall have a bronze 4-port, “H” pattern body and shall include integral check valves, integral screens and an ad just ment nut with locking fea ture. The valve shall be pro vid ed with 3⁄8" (10mm) male com pres sion or Quick-Connect fittings. The valve shall be Watts Series USG-B.

For satin chrome finish specify – SC

Noryl® is a registered trademark of SABIC Innovative Plastics®.

ES-USG-B-M2

ASSE 1070 and cUPC Listed

USG-B-M2 USG-B-QC-M2

Materials Body: Bronze

Spring: Stainless steel

Thermostat: Copper

O-rings: EPDM

Piston: Noryl®

Approval

Listing: ASSE 1070, IAPMO cUPC

Approval Standards: ASSE 1070, CSA B125.3

Pressure – Temperature Minimum supply pressure: 30psi (207 kPa)

Hot inlet temperature: 120°F-180°F (49°C-82°C)

Cold inlet temperature: 39°F-80°F (3.8°C-27°C)

Minimum inlet temperature differential: 5°F (2.8°C)

Temperature range: 80°F-120°F (27°C-49°C)

Maximum pressure: 150psi (10.3 bar)

Minimum flow: 0.5 gpm (1.9 lpm)

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.

Basic Construction

Typical Installations

Dimensions – Weights kPa psi 620 90 551 80 482 70 413 60 345 50 276 40 207 30 138 20 69 10 0 0

Flow Capacity

0 1.00 2.00 3.00 4.00 gpm 0 3.8 7.8 11.4 15.2 lpm

USG-B-M2

Two Handle Faucet Sensor Faucet

Check Module

Ferrule

Plunger

Body

Thermostat

Temperature Adjustment Screw

Screen

Compression Nut

Spring

Locking Nut

ES-USG-B-M2 1208 © 2012 Watts

A Watts Water Technologies Company

A

B

C

D

MODELS SIZE DIMEnSIOnS WEIGHT A B C D

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

USG-B-M2 3⁄8" Comp. 33⁄16 81 33⁄8 85 113⁄16 47 11⁄2 38 .82 .37 USG-B-SC-M2 3⁄8" Comp. 33⁄16 81 33⁄8 85 113⁄16 47 11⁄2 38 .82 .37 USG-B-QC-M2 3⁄8" Quick-Connect 31⁄4 83 4 102 21⁄4 57 11⁄2 38 1.05 .48 USG-B-QC-SC-M2 3⁄8" Quick-Connect 31⁄4 83 4 102 21⁄4 57 11⁄2 38 1.05 .48

Watts

USG-B-M2

NOTE: This information 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.