COMMERCIALwww.braycommercialdivision.com ATT-1

½”-1½” - Pressure Independent Control Valve - Modulating control valve, dynamic balancing valve and differential pressure control valve in one body. Field adjustable, self-balancing, dynamic flow control valves that are pressure independent, two-way and modulating to accept analog signal inputs. Each valve has an adjustable maximum flow rate setting to enable flow limitation and balancing to the coil or zone that the valve is controlling.

Advantages of Bray ATT Valves -

1. Installation costs - up to 60% fewer valves are required. Due to the automatic balancing of each heat exchanger, no other differential pressure control valves or balancing valves are required. This simplifies installation, reduces installed costs, and improves accuracy and reliability.

2. Operating costs - Minimizes pumping, heating and cooling costs by eliminating overflow through the coil and by reducing pressure drop.

3. The location of the Bray ATT automatic balancing valve does not require lengths of pipe before or after the valve.

Flow rate can be changed on demand without removing the cartridge from the valve body

The valve will always use full stroke of the control element offering the 100% authority for any of its 41 flow settings

Features and Benefits

• Field Adjustable, up to 41 different flow rates in one and the same cartridge

• 100% Authority Pressure Independent

Allows for coil isolation• Built-In Isolation Ball Valve (Body Style C and D)

Allows for verifying operating differential pressure across the valve

For ease of installation and wide selection of end fittings

• Optional Pressure/Temperature Measurement Ports

• Female-by-Female Threaded (Body Style B)• Double Union End Connection, Threaded or Sweat (Body Style C and D)

11/13/13

- System Types: - Media:

Fan Coil, VAV Reheat Coils, Hot Water, Chilled Water,

Chilled Beams and Air Handling Units 50/50 Glycol Solutions.

COMMERCIAL ATT SeriesAdjustable PIC Valves

2 Way • 1/2”- 1-1/2” • ATT - AutoTouch Terminal

Body Style B

Body Style C & D

COMMERCIALwww.braycommercialdivision.comATT-2

ATT - Valve SpecificationsBody Style B, C, D 1/2” – 1-1/2”

Hot Water, Chilled Water, 50/50 Glycol Solutions

Valve Body Pressure Rating Water

Maximum

Technical SpecificationsService

Operational ∆P

Operational ∆P

Pressure rating: 360 psi / (25 Bar)

Close-Off PressureMaximum

Minimum

(H Cartridge) 58 psid / (4 Bar)(L & M Cartridge) 87 psid / (6 Bar)

(M Cartridge) 4.4 psid / (0.3 Bar)(H Cartridge) 2.3 psid / (0.16 Bar)

(L Cartridge) 2.3 psid / (0.16 Bar)

58 psid / (4 Bar)

AmbientTemperature Rating 34˚ to 122˚ F (1˚ to 50˚ C)

Leakage

(Body “B” Only) Fixed female NPT or BSP, or Sweat(Body “C, D” Only) Union End Connection in Brass Alloy, NPT or BSP

Body

Ball Valve (Body “C, D” Only)

Materials

Forged Brass ASTM CuZn40Pb2

Chemically Nickel Plated Brass Ball

Cartridge

Diaphragm

Brass alloy NPT (Body Style C & D only)

Disclaimer - The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Bray office. Bray, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.

POM (Polyoxymethylene) - with Stainless Steel trim

Hydrogenated Acrylonitrile-Butadiene-Rubber

O-Rings

Union End Connections

EPDM

(L Cartridge) 0.1 to 3.3 GPM, (32.0 to 757 L/hr)(M Cartridge) 0.3 to 4.9 GPM, (64 to 1110 L/hr)(H Cartridge) 3.8 to 20.4 GPM, (865 to 4630 L/hr)

Flow Rate Range

End Connections

Minimum MediaTemperature Rating

248°F (120°C)Maximum MediaTemperature Rating ATT Body Style C, D

Valve BodyOnly

Weights (lbs.)

1/2”– 1” (Body C) 1.9lb., 0.87kg

1”– 1-1/2“ (Body D) 4.7lb., 2.14kg

ANSI / FCI 70-2 2006 (R1982) / IEC 60534-4 Class - Class IV- < 0.01%

212°F (100°C) ATT Body Style B

1/2” (Body B) 1.2lb., 0.55kg

3/4” (Body B) 1.3lb., 0.59kg

1“ (BSP Only) (Body B) 1.4lb., 0.64kg

1” (Body B) 4.1lb., 1.86kg.

1-1/4” (Body B) 3.7lb., 1.68kg

-4°F (-20°C)

COMMERCIALwww.braycommercialdivision.com ATT-3

ATT - Valve Specifications ATT - Actuator Specifications

ATT Actuators FN.0.2 FN.0.4 FN.1.2

Supply voltage 24V AC/DC ±10%, 50/60 Hz

Motor Bi-directional synchronous

(2-position / 3-point floating)

Power consumption

Input Impedance

3VA 3VA 3VA, 5VA peaks

Control signalAnalog 0(2)-10V DC

DigitalAnalog 0(2)-10V DC

Position output 0(2)-10V DC - 0(2)-10V DC

Failsafe function No No Yes

>30kΩ - >30kΩ

Auto stroke Yes No Yes

Operation time 50 Hz: 90 seconds 50 Hz: 90 Seconds 50 Hz: 45 Seconds

Actuation force 50 lbf, 225N ±5% 50 lbf, 225N ±5% 50 lbf, 225N ±5%

Ambient temperature -0.4°F to +122°F

Humidity rating <95% Non Condensing

Protection IP54, class II

Cable 4 wires 22 AWG halogenfree cable, 3.2 feet

3 wires 22 AWG halogenfree cable, 3.2 feet

4 wires 22 AWG halogenfree cable, 3.2 feet

Weight 0.55 lbs 0.55 lbs 0.66 lbs

FN.0.2 & FN.0.4 Series FN.1.2 Series

Auto Stroke OptionWith the auto stroke option activated, the actuator will make one full cycle every 24 hours, if the actuator constantly has been in fully open or fully closed position during the previous 24 hours.

This operation will clear up any possible impurities accumulated in the valve, and re-calculate the end positions.

COMMERCIALwww.braycommercialdivision.comATT-4

ATT - Piping Diagrams

ATT - Actuator Wiring

RETURN

SUPPLY

COIL

RETURN

Shown with Optional PT Ports

SUPPLY

COIL

Notes: Valve diameter should Never exceed pipe diameter Mount the ATT valves to the return side of the coil. 20 mesh strainer should be installed on the supply side of each coil using the ATT valve.

Blac

k

Power 24V AC/DC

Ground/common

Gre

en

Whi

te

Feedback signal0(2)-10V DCInput signal

0(2)-10V DC

Red

FN.0.4 Series Actuator

FN.0.2 & FN.1.2 Series Actuators

Blac

k

Power 24V AC/DC

Ground/common

Whi

te

Red

OpenClose

FN.0.4 Actuator FN.0.4 Actuator

FN.0.4 ActuatorFN.0.4 Actuator

FN.0.2 / FN.1.2 Actuator

2-Position, Normally Closed

Blac

k

Power 24V AC/DC

Ground/common

Whi

te

Red

Open Close

2-Position, Normally Open

Blac

k

Power 24V AC/DC

Ground/common

Whi

te

Red

OpenStop

Close

3-Point-Floating, Normally Closed

Blac

k

Power 24V AC/DC

Ground/common

Whi

te

Red

OpenStop

Close

3-Point-Floating, Normally Open

COMMERCIALwww.braycommercialdivision.com ATT-5

Valve model: C, DShown with

FN.0.4, FN.0.2 Actuator

B

A E

Note * Add end connection length to body length.Note ** Weight does not include end connections or actuator.Note *** For valve body.

ModelNumber

ValveModel

ValveSize

CartridgeSize

BodyTappings

A BFC

(FN.0.4 & FN.0.2)

D(FN.1.2)

End connections E** ***Weight

(lbs.)Cv

(GPM)NPTfemale

NPTmale Sweat

ATT-B-050-X-X/Act.

ATT-B-075-X-X/Act.

ATT-B-100-X-X/Act.

ATT-B-100-X-X/Act.

ATT-B-125-X-X/Act.

ATT-C-050-X-X/Act.

ATT-C-075-X-X/Act.

ATT-C-100-X-X/Act.

ATT-D-100-X-X/Act.

ATT-D-125-X-X/Act.

ATT-D-150-X-X/Act.

B

1/2”

1/4”

1/4”

1/4”

3.23

1.22 5.12 5.71 N/A N/A N/A

1.2

3.03/4” 3.70 1.31”

BSP Only 4.02 1.4

1” H(1-1/2”dia.) 5.04 1.85 6.02 6.50 N/A N/A N/A

4.114.5

1 1/4” 3.7

C

1/2”

L & M (3/4”dia.)

H(1-1/2”dia.)

L & M (3/4”dia.) 4.80 1.30 5.12 5.71

0.87 0.99 0.79

1.9 3.03/4” 0.87 0.99 0.79

1” N/A 1.54 0.87

D

1”

6.61 1.62 6.02 6.50

1.38 1.57 1.34

4.7 14.51 1/4” 1.38 1.57 1.46

1 1/2” 1.57 1.65 N/A

Valve model: C, DShown with

FN.1.2 Actuator

B

A E

Valve model: BShown with

FN.0.4, FN.0.2 Actuator

C, D† C, D† C, D†FFF

B

A

ATT - Valve/Actuator Dimensions

ATT - Strainer Dimensions

ATT - Piping Diagrams

ATT - Actuator Wiring

Notes: Valve diameter should Never exceed pipe diameter Mount the ATT valves to the return side of the coil. 20 mesh strainer should be installed on the supply side of each coil using the ATT valve.

Dimensions may vary, depending on the actuator. Dimensions are shown for the largest spring return actuator currently available.Dimensions are shown in inches and are approximate.

A

C

B

1/2” 3.9 1.1 2.3

3/4” 3.9 1.1 2.3

1”

2”

5.3 1.3 2.6

7.7 1.9 3.71 1/4”

7.5 1.9 3.71 1/2”

15

20

25

32

40

50 9.5 1.6 4.3

A B CConnection

in. mm

COMMERCIALwww.braycommercialdivision.comATT-6

Dynamic Flow Rate Limiter

The diaphragm reacts to the system and

regulates the pressure differential across the actuated control valve orifice to maintain its

flow rate.

Changing the setting will not affect the stem height as the setting merely turns the inner bottom part of the cartridge sideways.

At any setting the stem height will remain the same providing full stroke.

Indicates Flow DirectionIndicates Pressure Changes

Dynamic Balancing of Flow

Cartridge Adjustment

with Key

FlowFlow

Rotates with Key to adjust Flow

Adjustment

The AutoTouch Terminal (ATT) is set to 1 of 41 settings of maximum flows with the adjustment key.

Turn the adjustment key to numerals 1 through 5 with the decimals appearing in red.

Flow Rate can be changed on demandwithout removing the cartridgefrom the valve body.

Full Stroke Modulation100% authority guaranteed.

ATT - How it Works Principle of Operation

The function of the ATT

valve is best described as

three functions in one. The

first valve regulates the

pressure differential across

the second valve by means

of a rolling diaphragm

element counteracted by

a spring. The second valve

is a calibrated variable

orifice device adjusted by

the actuator (similar to

a standard modulating

control valve).

Go to the following web

address to see a video

demonstration:

www.

braycommercialdivision.

com/att.mov

COMMERCIALwww.braycommercialdivision.com ATT-7

ATT - How it Works ATT - Flow Rate Table

(L) Cartridge (M) Cartridge (H) Cartridge2.3-58 psid (.16-4 bar)*

High Flow(Black O-Ring)

2.3-29 psid (.16-2 bar)Low Flow

(Green O-Ring)

4.4-58 psid (.30-4 bar)Medium Flow(Black O-Ring)

SETTING GPM l/hr GPM l/hr GPM l/hr1 0.1 32.0 0.3 64 3.8 865

1.1 0.3 75.8 0.6 142 4.5 10101.2 0.5 116 0.9 209 5.1 11601.3 0.7 153 1.2 268 5.7 13001.4 0.8 188 1.4 319 6.3 14301.5 1.0 220 1.6 366 6.9 15701.6 1.1 250 1.8 408 7.5 17001.7 1.2 278 2.0 446 8.0 18201.8 1.3 304 2.1 482 8.6 19401.9 1.5 329 2.3 516 9.1 20602.0 1.6 352 2.4 549 9.6 21802.1 1.7 374 2.6 580 10.1 22902.2 1.7 396 2.7 611 10.6 24002.3 1.8 416 2.8 641 11.0 25102.4 1.9 435 3.0 671 11.5 26102.5 2.0 453 3.1 700 11.9 27102.6 2.1 471 3.2 728 12.4 28102.7 2.2 488 3.3 756 12.8 29002.8 2.2 504 3.5 783 13.2 30002.9 2.3 520 3.6 810 13.6 30903.0 2.4 535 3.7 835 14.0 31803.1 2.4 549 3.8 860 14.4 32603.2 2.5 563 3.9 883 14.7 33503.3 2.5 577 4.0 906 15.1 34303.4 2.6 590 4.1 927 15.5 35103.5 2.7 602 4.2 946 15.8 35903.6 2.7 614 4.3 965 16.1 36703.7 2.8 626 4.3 982 16.5 37403.8 2.8 637 4.4 998 16.8 38203.9 2.9 649 4.5 1010 17.1 38904.0 2.9 659 4.5 1020 17.4 39604.1 3.0 670 4.6 1040 17.7 40304.2 3.0 681 4.6 1050 18.1 41004.3 3.0 691 4.7 1060 18.4 41704.4 3.1 701 4.7 1070 18.7 42404.5 3.1 711 4.7 1080 19.0 43004.6 3.2 721 4.8 1080 19.2 43704.7 3.2 730 4.8 1090 19.5 44404.8 3.3 740 4.8 1100 19.8 45004.9 3.3 749 4.9 1100 20.1 45705.0 3.3 757 4.9 1110 20.4 4630

Accuracy: Greatest of either +/- 10% of controlled flow rate or +/- 5% of maximum flow rate.* At setting 2.6

A micrometer setting of 3.4 as illustrated above corresponds to a max flow rate of:

2.6 GPM - (L) Cartridge4.1 GPM - (M) Cartridge15.5 GPM - (H) Cartridge

Use the special designedkey for micrometer setting.

O-Ring

Key

O-Ring

COMMERCIALwww.braycommercialdivision.comATT-8

ATT - Model Number

FN.0.2NFP2.4M050BATTSample Part NumberSizes (in/(mm)) Isolation Ball Valve Cartridge

B 1/2(15), 3/4(20), 1(25)

L,M

B 1(25), 1-1/4(32) H

C1/2(15), 3/4(20), 1(25), 1 1/4(32)

-

-

L,M

D 1(25), 1-1/4(32), 1-1/2(40) H

in.SIZE

CODE

STYLE

CODE

mm

050 1/2 15

075 3/4 20

100 1 25

125 1-1/4 32

150 1-1/2 40Pressure range, ∆P(psi) Flow rate(GPM)

L Low Flow 2.3-29 psi, .16-2 bar 0.141-3.31

M Medium Flow 4.4-58 psi, .30-4 bar 0.282-4.89

H High Flow 2.3-58 psi, .16-4 bar 3.81-20.4

Description NF NPT female threads

NFP NPT female threads with pressure/temperature plugs

NM NPT male threads

NMP NPT male threads with pressure/temperature plugs

SW Sweat termination

SWP Sweat termination with pressure/temperature plugs

BF BSP female threads

BFP BSP female threads with pressure/temperature plugs

BM BSP male threads

BMP BSP male threads with pressure/temperature plugs

Body Style(see body style configurationchart below)

Valve Size

Flow Rate

Cartridge

Connection/Port Code

Actuator

0.1 to

20.4

FN.0.2 24V Modulating

FN.0.4 24V 3-Point Floating

FN.1.2 24V Modulating (with feedback signal)

Reference the previously listed Flow Rate Table and select the desiredflow rate GPM that is listed for the cartridge that you are using.

NPT Male

BodyType

NPT Female

BSP Male

BSP Female Sweat

Union Ends

Sizes(in. mm)

Pressure/Temp Ports

IsolationBall ValveCartridge

Body StyleConfig-urations

L,M

L,M

L,M

B 1/2 (15),3/4 (20)1(25)*

H

H

1 (25),1-1/4 (32)

* 1” utilizing the L & M cartridge available as BSP only

1/2 (15),3/4 (20)

1 (25),1-1/4 (32),1-1/2 (40)

1 (25)

B

C

C

D

See Body Style Con�guration Chart Below

(Union Ends standard on Body C & D)

*Example: Medium Flow Cartridge, 1/2", body style B, 2.4 GPM, Female NPT with PT ports with FN.0 actuator ATT-B-050-M-2.4-NFP/FN.02

Additional Example: High Flow Cartridge, 32mm, body style D, 1300 l/hr, male BSP threads with PT ports.ATT-D-125-H-5.7-BMP/FN.02