Chicago Faucet 131-ABNF User Manual

The 131 Series

Thermostatic Mixing Valves

For Point-of-Use Applications

The 131 Series Thermostatic Mixing Valve is designed to limit hot water and maintain a constant water temperature for faucet
applications in commercial and institutional applications. It is an ideal point-of-use addition for schools, restaurants, hospitals, and
public restrooms where preset water temperature is required. The 131 Series incorporates durable brass construction, an integral
filter, check valves, and convenient access to the cartridge for easy maintenance. In addition to the 131-NF, we offer models that
include inlet and outlet connectors, as well as two ECAST

®

products to meet the latest laws regarding lead content.

■

Cast brass valve body for superior durability

■

3/8˝ compression connections for easy installation with existing water supply lines

■

Dual check valves help protect against cross-flow

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Filter screen incorporated in cartridge traps water debris to promote consistent performance

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Temperature regulating cartridge provides selectable temperature of 80ºF – 120ºF

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Superior flow characteristics for temperature control of ±3ºF

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3- and 4-port configurations available

Superior Valve Design

Vandal-resistant temperature
adjustment handle with
Hot/Cold index

Durable mounting bracket
provides easy installation

Cast brass valve body for
superior durability

One-piece replaceable cartridge
and integrated screen filter for
consistent performance and
easy repair

3/8˝ compression connections
for easy installation with existing
water supply lines

Dual check valves help
protect against cross-flow

The 131 Series

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20

40

60

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100

120

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2 3 4 5 6 7

PSI

GPM

140

Thermostatic Mixing Valves

3-Port Thermostatic Mixing Valves

131-NF Thermostatic Mixing Valve

131-ABNF* ECAST®Thermostatic Mixing Valve

Pressure – Temperature

Minimum Supply Pressure: 30 psi (207 kPa)

Hot Inlet Temperature: 120°F – 180°F (49°C – 82°C)

Cold Inlet Temperature: 40°F – 85°F (4°C – 29°C)

Min. Inlet Temperature Differential: 20°F (9°C)

Temperature Out: 80°F – 120°F (27°C – 49°C)

Factory Setting: 100.4°F ±1°F

Minimum Flow Rate: 0.5 gpm (@ min. 10 psi)

Maximum Flow Rate: 6.4 gpm (@ min. 120 psi)

Maximum Pressure: 125 psi (8.6 bar)

4-Port Thermostatic Mixing Valves

131-CNF Thermostatic Mixing Valve

131-CABNF* ECAST®Thermostatic Mixing Valve

*Available July 1, 2011

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Codes & Standards

Certified to ASSE 1070
Standards

and manufactured with one quarter of one percent (0.25%) or less total lead
content by weighted average.

Contains 10% post-consumer recycled paper

CSA B125 Certified 131-ABNF and 131-CABNF are compliant

ECAST, from Chicago Faucets, is the line of durable,
high-quality brass faucets and fixtures that are designed

Certified to NSF/ANSI 61,
Section 9 by CSA

Compliant to the Buy American Act of 1993 and meets
the requirements of the Buy American provision included
in the American Recovery and Reinvestment Act.

to California Health and Safety Code 11875

(AB 1953-2006) and Vermont Bill S.152

The Chicago Faucet Company

www.chicagofaucets.com

CF1072 03/11© 2011 The Chicago Faucet Company. Product specifications subject to change without notice.