(44)The Bray Series 70 Electric Actuator provides a rugged, compact industrial actuator solution to a wide range of quarter turn applications including butterfly valves, ball valves, and dampers. Available in torque outputs from 600 to 18,000 lb.in. (68 to 2033 Nm), these actuators mount directly to Bray and other industry standard butterfly valves without the need for brackets and linkages. The manual declutchable override handwheel is standard on all Bray Series 70 actuators, providing end user convenience in installation, commissioning and service.
On/Off and modulating models are available in 24, 110 and 220 VAC. The standard enclosure is NEMA 4x and IP65 rated with an industrial polyester finish, making the Series 70 the ideal choice for cooling tower valves and other outdoor applications. The advanced Servo Pro modulating control card assures compatibility with virtually any analog control signal used in today’s building automation and temperature control systems.
Features
Compact design and direct mounting
UL, CSA and CE approved (most models)
High visibility beacon position indicator
Internal isolation relays
Manual declutchable override handwheel
Advanced Servo Pro modulating option
Optional battery backup on 24 VAC models
Benefits
Fits in tight spaces, installs easily
Assures universal application acceptability
Assists in field operation
Allows parallel wiring of multiple actuators from a single control output
Allows manual positioning without disconnecting power
Provides on-board diagnostics and user adjustable options including control signal type, speed controls and other features.
Assures return to a predetermined position upon loss of power supply
Specifications
Industrial electric actuators shall include manual declutchable override handwheel and high visibility position indication. Motors shall be continuous duty. Enclosure shall be NEMA 4X, IP 65 rated. Actuator shall conform to ISO 5211 standards for direct mounting onto quarter turn valves. On/Off actuators shall be equipped with internal isolation relays to allow parallel wiring of multiple units. Modulating actuators shall be equipped with a microprocessor-based servo control with on-board diagnostics. Actuator shall be UL, CSA and CE approved. Actuators shall be Bray Series 70 or approved equal./Asset/Series-70-Actuators.jpg
Provides visual and electronic indication of low battery state
Application Flexibility
Suitable for outdoor use, subject to ambient temperature limits
The Battery Backup (BBU) option for the Bray Series 70 24VAC actuators provides a convenient and cost effective solution to provide return of the valve or damper to a user-selectable position upon loss of supply power. The BBU is available for both On/Off and modulating actuators.
The advanced circuitry of the BBU continuously monitors battery strength and provides a visual indication (LED) and remote indication (via dry contact). The BBU is housed in sturdy die cast aluminum NEMA 4x (IP 65) enclosure and is factory mounted and factory wired to the Bray Series 70 24 VAC actuator.
Operation In the normal mode of operation with power supplied to the actuator, the batteries maintain a charge and are in an offline mode. The power applied to the motor is from the power supply, not the batteries.
Upon loss of supply power, after a 10 second startup sequence, the BBU circuitry applies the stored power in the batteries to move the valve or damper to the full open or full closed position designated by the user. The actuator remains in this position until external power is restored to the unit.
For two position (on/off units), and modulating units, the BBU board automatically detects when the actuator has reached the desired position and then disconnects the battery power from the motor./Asset/BBU-For-Series-70.jpg
(6)AU Series Electric actuators provide precise, durable control of quarter turn valves including rubber seated butterfly valves, high performance butterfly valves and industrial ball valves. The compact industrial housing is rated to NEMA 4X (IP 67) standards for outdoor use. All models include integrated controls and a manual override handwheel.
The standard AU models are 120V single phase. Three phase units are available as an option. All AU series actuators include two auxiliary switches, torque switches, a position indicator and a heater. Modulating units provide position feedback as standard.
AU series actuators mount directly to Bray butterfly valves and ball valves without the need for adapter bracket. Thermal overload protection is provided by means of PTC thermistors connected directly to the motor windings./Asset/AU-Series-Actuator.jpg
