Specification

ManualsBrandsAmerican Standard ManualsMixing ValvesFlash 2-Way Integrated Shower Diverter Rough-In Valve with Pressure Balance Valve Cartridge

GENERAL DESCRIPTION:

Valve body features cast DZR brass construction.

The single unit contains two handles, the bottom handle

sets the water’s desired temperature, as well as the on and

off. The top metal handle controls the diverter functions.

The valve utilizes a ceramic spool pressure balance unit,

which reacts quickly to pressure changes and reduces risk

of scalding.

PRODUCT FEATURES:

Cast DZR Brass Valve Body: Durable. Ideal material for

prolonged contact with water. Resists corrosion due to high

chloride and pH levels in water

Flat Back: Allows valve to be mounted ush against cross

brace for easy and solid installation.

Smaller Size: Increased exibility in tight installation areas

Ceramic Spool Pressure Balance Unit: Quick reacting to

pressure changes, Resists lime and calcium buildup and

unaffected by harsh water conditions

150-Degree Comfort Range: Wider temperature range to

allow user to ne tune the perfect shower temperature

ROUGH VALVES

FLASH

™

TWO-HANDLE PRESSURE BALANCE ROUGH VALVE

WITH BUILT-IN 2-WAY DIVERTER

12/20

SUGGESTED SPECIFICATION

Two-handle pressure balance valve shall feature a cast DZR brass valve body. Shall feature built-in diverter. Pressure balance

rough valve shall utilize a ceramic spool pressure balance unit. Shall also feature 1/2" NPT inlets and outlets. Fitting shall be

American Standard Model # RU521.

MODEL NUMBER:

❏ RU521 Flash Two-Handle Pressure Balance

Rough Valve with Built-In 2-Way Diverter

(Discrete)

1/2" NPT inlets/outlets. 2 Discrete Functions. LESS Trim.

❏ RU531 Flash Two-Handle Pressure Balance

Rough Valve with Built-In 2-Way Diverter (Shared)

•

2-Way Diverter with Shared Flow requires additional

cartridge (RP# M970720-0070A), sold separately.

•

1/2" NPT inlets/outlets. 2 Discrete Functions/1 Shared

Function. LESS Trim.

123 mm

(4-7/8")

123 mm

(4-7/8")

Solid Brass Inlet Connections: Fast and easy installation

without adaptors reducing leak points - Easier and ameless

installation (no soldering required)

Exclusive Plaster Guard: Plaster guard is designed to protect

valve and act as a guide during installation.

2-WAY DISCRETE 2-WAY SHARED

Also requires

RP# M970720-0070A,

sold separately

2-WAY DIVERTER OPERATION

A+B

Summary of content (2 pages)

PAGE 1
ROUGH VALVES FLASH TWO-HANDLE PRESSURE BALANCE ROUGH VALVE ™ WITH BUILT-IN 2-WAY DIVERTER MODEL NUMBER: ❏ RU521 Flash Two-Handle Pressure Balance Rough Valve with Built-In 2-Way Diverter (Discrete) 1/2" NPT inlets/outlets. 2 Discrete Functions. LESS Trim. ❏ RU531 Flash Two-Handle Pressure Balance Rough Valve with Built-In 2-Way Diverter (Shared) • 2-Way Diverter with Shared Flow requires additional cartridge (RP# M970720-0070A), sold separately. • 1/2" NPT inlets/outlets.
PAGE 2
ROUGH VALVES FLASH TWO-HANDLE PRESSURE BALANCE ROUGH VALVE ™ WITH BUILT-IN 2-WAY DIVERTER These products meet or exceed the following codes and standards: ASSE 1016 ASME A112.18.1 CSA B125.1 GALLONS PER MINUTE 12 FLOW RATE - RU521 (Shared) FLOW RATE - RU521 (Discrete) 18 10 GALLONS PER MINUTE CODES AND STANDARDS 8 6 4 2 0 20 40 60 80 100 16 14 12 10 8 Port A/B 6 Port A + B 0 INLET PRESSURE (PSI) *Flow rates shown are for mixed hot and cold.