COMMERCIAL www.braycommercialdivision.com ATT-E-1 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. Features and Benefits • Field Adjustable, up to 41 different flow rates in one and the same cartridge Flow rate can be changed on demand without removing the cartridge from the valve body • 100% Authority Pressure Independent The valve will always use full stroke of the control element offering the 100% authority for any of its 41 flow settings • Up to 60 GPM of flow capacity for high volume applications • NPT or BSP female by female threaded connection Secure, leak free connection to most common applications • Optional Pressure/Temperature Measurement Ports Allows for verifying operating differential pressure across the valve - System Types: - Media: Fan Coil, Hot Water, Chilled Water, Air Handling Units 50/50 Glycol Solutions. COMMERCIAL ATT-E Series Adjustable PIC Valves 2 Way • 1-1/2”- 2” • ATT-E - AutoTouch Terminal 05/26/16
7
Embed
ATT-E Series COMMERCIAL… · COMMERCIAL ATT ... Modulating control valve, dynamic balancing valve and ... Secure, leak free connection to most common applications
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
COMMERCIALwww.braycommercialdivision.com ATT-E-1
Pressure Independent Control ValveModulating 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.
Features and Benefits
• Field Adjustable, up to 41 different flow rates in one and the same cartridge
Flow rate can be changed on demand without removing the cartridge from the valve body
• 100% Authority Pressure Independent
The valve will always use full stroke of the control element offering the 100% authority for any of its 41 flow settings
• Up to 60 GPM of flow capacity for high volume applications
• NPT or BSP female by female threaded connection
Secure, leak free connection to most common applications
• Optional Pressure/Temperature Measurement Ports
Allows for verifying operating differential pressure across the valve
- System Types: - Media:
Fan Coil, Hot Water, Chilled Water,
Air Handling Units 50/50 Glycol Solutions.
COMMERCIAL ATT-E SeriesAdjustable PIC Valves
2 Way • 1-1/2”- 2” • ATT-E - AutoTouch Terminal
05/26/16
COMMERCIALwww.braycommercialdivision.comATT-E-2
ATT-E - Valve SpecificationsBody Style E 1-1/2” – 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 Pressure Maximum
Minimum
87 psid / (6 Bar)
2.3 psid / (0.16 Bar)
58 psid / (4 Bar)
Ambient Valve & Actuator Temperature Rating 36˚ to 122˚ F (-2.2˚ to 50˚ C)
Leakage
(Body E) Fixed female NPT
Body
Materials
Forged Brass ASTM CuZn40Pb2
Cartridge
Diaphragm
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 EPDM
8.36 to 60.0 GPM, (1900 to 13647 L/hr)Flow Rate Range
End Connections
Media Temperature Rating
Valve BodyOnly
Weights (lbs.) 1-1/2” (Body E) 10.1lb., 4.58kg
2“ (Body E) 9.3 lb., 4.22kg
ANSI / FCI 70-2 2006 (R1982) / IEC 60534-4 Class - Class IV- < 0.01%
Closing Point Adjustment During operation the actuator will self-adjust according to the closing point of the valve
Protection NEMA 3S/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
FH.0.2 & FH.0.4 Series FH.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-E-4
ATT-E - Piping Diagrams
ATT-E - Actuator Wiring
RETURN
SUPPLY
COIL
RETURN
SUPPLY
COIL
Blac
k
Power 24V AC/DC
Ground/common
Gre
en
Whi
te
Feedback signal0(2)-10V DCInput signal
0(2)-10V DC
Red
FH.0.4 Series Actuator
FH.0.2 & FH.1.2 Series Actuators
Default is “Normally Open” unless stated.
Blac
k
Power 24V AC/DC
Ground/common
Whi
te
Red
OpenClose
FH.0.4 Actuator FH.0.4 Actuator
FH.0.4 ActuatorFH.0.4 Actuator
FH.0.2 / FH.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-E-5
Note * Add end connection length to body length.Note ** Weight for valve body only.Note *** For complete unit based on minimum DP.
ModelNumber
ValveModel
ValveSize
BodyTappings
A BFC
(FH.0.4 & FH.0.2)
D(FH.1.2)
** ***Weight(lbs.)
Cv(GPM)
ATT-E-150-E-X-X/Act.
ATT-E-200-E-X-X/Act.1/4”
10.1
9.3E
1 1/2”7.52 3.95 7.57 8.16 174.4
2”
Valve model: EShown with
FH.1.2 Actuator
Valve model: EShown with
FH.0.X Actuator
D
B
A
CF F
B
A
ATT-E - Valve/Actuator Dimensions
ATT-E - Strainer Dimensions
ATT-E - Piping Diagrams
ATT-E - Actuator Wiring
A
C
B
2”
7.5 1.9 3.71 1/2” 40
50 9.5 1.6 4.3
A B CConnection
in. mm
Dimensions are shown in inches and are approximate.