Transcript HVAC and Temperature Control Who is Bray Controls? World Headquarters in Houston, Texas • Founded in 1986 • Market share leader in automated Butterfly Valves • Plants and Distribution.

HVAC and Temperature Control
Who is Bray Controls?
World Headquarters in Houston,
Texas
• Founded in 1986
• Market share
leader in
automated Butterfly
Valves
• Plants and
Distribution Centers
on 5 continents and
40 countries.
The Product Line
• Butterfly Valves for Isolation & Control (2-20”)
– Electric/Electronic Actuators
– High Pressure Pneumatic Actuators
– Low Pressure Pneumatic Actuators
• Automated Control Valves
– Characterized Ball Valves (1/2”-6”)
– Pressure Independent Control Valves (1/2”-6”)
– Globe Valves (1/2”-6”)
• Retrofit Kits
• Accessories
Series 31 Resilient-Seated Valves
• 2 to 20 inches
• 2-Way or 3-Way
– Mixing or Diverting
• Bi-directional flow
• Rated at
150 to 175 PSI ∆P or
50 to 75 PSI ∆P
• -40˚ to 250˚F fluid
temperature rating
One-Piece Nylon-coated disc
Tongue & Groove Seat Design
One-piece stem with Double D
engagement
Peroxide-cured seats for
maximum rubber stability
Full Rated Valves
MK-Series High Performance
• ANSI Ratings at
– 150 PSI
– 300 PSI
• Temperature Rating
from -20˚F to 500°F
• Bubble tight bidirectional close-off on
water or steam
Pressure assisted, not pressure reliant!
• Double offset design results in higher close-off, lower
torque
• Two-piece seat is
– Self adjusting for wear
– Replaceable without removal of disc or stem
• Electric/Electronic
• High Pressure Pneumatic
• Low Pressure Pneumatic
Series 70
The Future of Electric Actuation
• Smallest, lightest
electric actuator on
the market.
• Torque from 600 to
18,000 lb. in.
• Direct mounting
allows low cost,
reliable performance
and easy service
The Bray Series
70 is less than
half as tall as
other electric
actuators, and
requires less than
a third of the
clearance
dimension for
cover removal
NEMA 4
Housing is
polyestercoated to resist
corrosion
Manual override
automatically
engages/disengages
the motor
Built-in overload protection with
auto reset (line voltage models)
Motor and output
drive are isolated
from wiring and
field settings
Built in isolation relays
prevent damage due
to parallel wiring
Two SPDT Switches
synchronize motor control
with position display
Optional thermostatically
controlled heater prevents
condensation
Patented cam design
provides infinite adjustability
Optional Servo Control provides
• Speed Control
• Modulating Control
• Voltage Spike Protection
O-ring seal around
switch plate provides
superior water-tight seal
Battery Backup for Series 70 Actuators
Option for the Bray series 70 actuators to
provide return of the valve or damper to a
user-selectable position upon loss of power.
• For use on 24 VAC
actuators
• For use on models up
to 5,000 ft./lbs.
• One universal model
for ON/Off and
modulating
• Factory installed and wired. Can also be field
installed
• Battery strength indication- Provides visual and
electronic indication of low battery state on unit
and with digital feedback to the controls station
• Field selectable Normally Open or Normally
Closed
• Nema 4x (IP 65) enclosure- Suitable for outdoor
use, subject to ambient temperature limits
• In normal mode with power supplied to
actuator, the batteries maintain a charge and
are in an offline mode.
• Upon loss of power, the BBU applies the
stored battery power to move the valve or
damper to the full open or full closed position.
• The unit disconnects battery power from the
motor when the actuator reaches the desired
position.
• Electric actuators with mechanical spring
return are 3X the cost and limited torque
• Wall mounted UPS units have to be field
installed are significantly more expensive
• Bray’s BBU is integral to the unit and costs
significantly less. The BBU is your most
economical battery back-up solution!
Series 92/93 Pneumatic Actuators
• Compact, precision
engineered to mount
directly to Bray
valves
• Size range offers
150 to 30,000 lb. in.
of torque output
• Position indicator
and bi-directional
travel stops are
standard
I to P Positioners
Pneumatic Positioners
Valve Status Monitor
Solenoids
Bray ST2 Characterized Ball Valves
• ½” to 2”
• 2-Way and 3-Way
– Mixing or Diverting
• Spring return and
Non spring return
actuators
• Close-Off rating
200 PSI
• Body Rating 580
PSI
CWP
• Characterized disc provides
precise equal percentage
flow characteristic
• Rangeability up to 500:1
• PTFE seats with EPDM Oring cushions allow for low
torque and extended valve
life
• Multiple Cvs for each size
allow for precise valve sizing
and maximum controllability
• Forged Brass Body, 2-piece
• Stainless Steel Ball and Stem
(standard)
• Double EPDM O-ring packing
• PTFE Seats (EPDM-loaded)
• Amodel Characterizing Disc
®
• One screw
secures direct
mount actuator
to body.
• Orientation can
be 4 ways
• Universal kit
accommodates
1.25 to 2” valves.
ST2-150-2-29
Series
Size (in.)
Config
2=2-way
3-3way
Cv
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Low Torque
Longer Life, even on dirty water
Stainless ball and stem is standard
High Controlability
Use on water and Low Pressure Steam
Low Cost
Easy to install Actuator
STM Flanged Characterized
Ball Valves
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2 ½” to 4”
2-Way and 3-Way
Multiple Cv ratings
Available with spring
return and non-spring
return actuators
• Close-off rating 100
PSI
• Body rating 250 PSI
• Lap Flange
– Allows easy positioning
and alignment with mating
flanges
• Low Torque
– Smaller actuator and
longer life
• Dimensionally Stable at
High Temperature
– Works in low pressure
steam applications
• 5 Year Warranty
– Assurance of trouble free
operation
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Stainless steel ball and stem
Forged brass body
Ductile iron flanges
Graphite reinforced seats with EPDM Oring backing
• EPDM O-ring stem seals
• Amodel characterizing disc
STM-250-2-47
Series
Size (in.)
Config.
2=2-way
3-3way
Cv
Pressure Independent Valves
AutoTouch Terminal
ATT
AutoTouch Independent
ATi
AutoTouch Independent Max
ATi Max
Benefits of Pressure Independent
Balancing Valves
• Pressure Independent Flow Control
• Control flow exactly—even when system delta P
changes
• No overflow or underflow conditions
• Lower system energy costs
• No Test and Balance needed
• Accurately minimizes flow during low load conditions so
less pump energy is required
• Saves money for both the contractor and building owner
Nearly flat line performance of flow across the
whole PSID range to track control input
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Fewer valves required
Reduction in system head loss (less restriction/resistance)
Reduction in pump size
Energy savings
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Resulting in 13 fewer valves.
Manual Balanced System
Automatic Balanced System
Application Example
System for Fan Coil Units
1. Energy savings up to 20%–
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Accurate flow control through coil (+/-2% Max flow rate)
Reduced pump sizes
Inaccuracies of manual balancing procedures
Actuator full 360 degree rotation at 1% increments – Truly 100%
authority to the coil
2. Ensures occupant comfort.
3. Cost the same or less than traditional equipment & designs
– Purchase fewer pieces of equipment & less install labor time
– No manual balancing labor required
1. Fewer Valves = Less material and labor costs
2. No Cᵥ calculations needed. Avoid the cost of
difficult & inaccurate manual balancing practices.
3. The ATT’s external adjustment of flow rates while
system is in operation – correct problems quickly
and accurately
4. Up to 20% Energy savings & ensures building
comfort. Actuator full 360 degree rotation at 1%
increments – Truly 100% authority to the coil
5. First Class Local Service
AutoTouch Terminal (ATT)
½” to 1 ½”
• 41 different flow rate settings with each
adjustable cartridge. No need to remove
from valve body
• Full stroke modulation at any flow setting
assuring maximum control resolution
• Built-in-isolation ball valve (body style C & D)
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Sizes ½” to 1 ½”
41 different flow rate settings
Flow Rate: 0.14 to 20.4 GPM
dP Range: 2.3 to 58 psi
Female-by-female threaded and union end connections,
threaded or sweat
• P/T ports
• Built-In Isolation ball valves (Body styles C & D)
• Actuators:
• 24V electrical 3-point-floating
• 24V electrical modulating 0-10V
• 24V electrical modulating with failsafe
How it Works
How it Works
http://legacy.braycommercialdivision.com/att.mov
ATi Auto Touch Independent
Automatic Balancing Valve
(½” to 3”)
ATi Features:
• Pressure Independent Flow Control
• Control flow exactly—even when system delta P
changes
• No overflow or underflow conditions
• Lower system energy costs
• Pressure/Temperature test port standard
• Sizes 1/2" - 3" NPT Screwed
• No Test and Balance needed
• Accurately minimizes flow during low load conditions so
less pump energy is required
45 psi
20 psi
35 psi
45 psi
•
The diaphragm cartridge uses a relatively higher upstream pressure
through the channel to limit flow to a maximum balanced point when control
valve is wide open…
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Field adjustable max flow rate
ATi Max Pressure Independent
Control Valves
(2-1/2 to 6”)
• Same Force/Balance
principle, but different
construction
• Flow Rates up to 468
GPM
• All components shown on
a typical piping detail
– Multi-turn actuator, adjustable
for design flow to within .1 gpm
– Automatic Balancing Valve
– 2 P/T Ports
– Manual Isolation Valves
– Strainer
– Offered as a set but you may source
either individually
Competitive Matrix
Bray Controls
Belimo
Flow Control
TA/Flow Design
Danfoss
Griswold
Model/size
Available Sizes
GPM Range
Field Adjustable
ATT
.5 to 1.5"
0.141 - 20.4
No stroke limitation
ATi
.5 to 2"
1 - 95
Yes, stroke limiting
ATi Max
2.5" to 6"
40.7 - 468
Yes, stroke limiting
PICCV
.5 to 2"
0.5 - 100
Yes, stroke limiting
E PIC
2.5 to 6"
34 - 713
No stroke limitation
.5 to 2"
NA - 112
Yes, stroke limiting
2.5 to 16"
NA - 5500
Yes, stroke limiting
.5 to 2"
0.1 - 57.2
No stroke limitation
2.5 to 5"
1.5 - 308.2
Yes, stroke limiting
.5 to 2"
1.2 - 55
Yes, stroke limiting
2.5 to 10"
85 - 1235
Yes, stroke limiting
PIC V
.5 to 3"
1 - 95
Yes, stroke limiting
MVP
2.5 to 6"
39 - 469
Yes, stroke limiting
Delta P
KTM
AB-QM
Competitive Matrix
Bray Controls
Belimo
Model/size
Minimum Delta P
Built In Isolation Ball Valve
Accuracy
ATT
2.3 to 4.54 PSI*
Optional
+/-5%
ATi
3 to 7 PSI*
Not Available
+/-5%
ATi Max
5 to 11 PSI*
Not Available
+/-5%
PICCV
5 PSI
Not Available
+/-10%
E PIC
5 PSI
Not Available
+/- 16%
5 to 10 PSI*
Not Available
+/-5%
5 to 10 PSI*
Not Available
+/-5%
3 PSI
Optional
+/- 20%
3 Psi
Optional
+/- 30%
2.3 PSI
Not Available
+/- 5%
4 PSI
Not Available
+/- 5%
PIC V
3 to 11 PSI*
Yes
+/-5%
MVP
5.1 to 11.6 PSI*
Yes
+/-5%
Flow Control
Delta P
TA/Flow Design
KTM
Danfoss
AB-QM
Griswold
* Depends on valve size and max flow rate setting
Competitive Matrix
Bray Controls
Belimo
Flow Control
TA/Flow Design
Danfoss
Griswold
Model
Rangeability
Close-off
P/T Ports
5 year warranty
ATT
100:1
58 PSI
Optional
Available
ATi
100:1
100 PSI
Standard
Available
ATi Max
100:1
87 PSI
Standard
Available
PICCV
100:1
200 PSI
Not available
Yes
E PIC
Unknown
100 PSI
Not Available
Yes
100:1
200 PSI
Standard
Valve Only (not actuator)
100:1
200 PSI
Standard
Valve Only (not actuator)
Unknown
260 PSI
Standard
Unknown
Unknown
260 PSI
Standard
Unknown
Unknown
90 PSI
Optional
Unknown
Unknown
90 PSI
Optional
Unknown
PIC V
100:1
100 PSI
Standard
No
MVP
100:1
87 PSI
Standard
No
Delta P
KTM
AB-QM
PIC Valve Features & Benefits
Summary
• Provides accurate and pressure • More precise and stable control
independent control at all levels
of demand
• Eliminates overflow at less than • Reduces pumping energy and
contributes to higher chiller and
design demand conditions
boiler delta T
• Combines flow control and
dynamic balancing in a single
space-saving device
•
• Reduces field balancing tasks
• Reduces total system costs and
speeds the project towards
completion faster
Reduces field installation costs
Cast Iron Globe Valves
( 2 ½” to 6”)
• 2-Way and 3-Way
• Brass or Stainless
Steel Trim
• Rangeability > 100:1
• Broad Range of
Electric Actuators
Industrial Ball Valves
(½” to 4”)
• 3-piece Stainless Steel
• Industrial Strength
• Equal Percentage
Characteristic
• High Capacity
• Body Rating to 1000 psi
• Steam Applications to
150 psi
• High Pressure Hot
Water
• Saturated Steam
Application to 150 psi
• Operating Temp 0°F366°F
• Maintenance:
– Remove one body bolt
(top)
– Loosen other three bolts
– Rotate valve body out of
line
– Replace new center
section
D Series Electronic Actuators
• Current Sensing
Technology
• Precision MultiTurn Feedback
Potentiometers
for reliable
position
feedback.
• Torque output
from 35 to 280
lb. in.
DC Series Electronic Actuators
Advanced brushless
DC motor
technology achieves
sophisticated control
of speed, torque,
and braking
functions
• Self-centering shaft
coupling
• Torque ranges from
20 lb/in to 310 lb/in
• 120 VAC Two
position spring return
model available
• Standard or plenum
rated cable
• 24 VAC and 120 VAC
• 45 in/lbs Torque
• Standard or plenum
rated cable
• Flip Top with Captive
Screw (Tech Only)
• Anti-Rotation Strap,
Wire Retaining Clip
and Conduit
Connector all
Included.
Retrofit Kits
• Globe Valves up to 6",
2-Way or 3-Way
• Butterfly Valves up to 20",
• 2-Way or 3-Way Electronic Actuation
• On/Off, Tri-State, &
Modulating
• Cross Reference Library
• Convenient Fax Forms
• Easy Installation
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Strong-all-metal construction
Available for a wide range of valve
types and stem lengths
All adapters for mating to valves
are supplied with the linkage
Adjustable leg length
Universal
Aluminum for corrosion resistance
Rack and pinion design
Anodized Red for a great appearance
May be used in high-stress applications
May be used in high-temperature applications
Makes pneumatic to electronic conversion
simple
A wide range of control systems can be used
High close-off available for most applications
May use tandem actuators for higher closeoff pressures
Easy retrofit on non-standard valves
Discover how easy it can be to retrofit your current situation
Discover how easy it can be to retrofit your current
situation
Weather Shield
This weather shield
provides a cost effective
and rugged enclosure
designed to protect
commercial actuators in
outdoor valve and
damper applications. Its
large enough to
accommodate tandem
mounted actuator
applications.
The weather shield enclosure is
designed to NEMA 4 specifications,
and does not allow any moisture to
penetrate the custom-designed seals.
It's cover is constructed of a sturdy
ABS material injected with ultraviolet
inhibitors, which prevents the cover
from becoming brittle or damaged by
the sun or any other outdoor element.
In addition, this semi-translucent
material allows the actuator to be
viewable. The base is constructed of a
durable nylon blend that provides
flexibility and durability.
• High Product Quality
and Reliability
• Fast Delivery
• Expert Factory
Support
• Expert Local
Support