High performance without compromise. The Series 76 is a heavy-duty, quarter-turn electric actuator ideal for industrial valve automation. Available in various power voltage supplies and designed for on/off and modulating applications for a wide range
of markets and industries.
The Bray Series 76 is a quarter-turn industrial electric actuator with manual override for use on any quarter-turn valve or damper requiring up to 79, 000 in-lbs (9,000 Nm) of torque. Operating speeds vary between
17 to 130 seconds depending on torque, voltage, and frequency.
Electric Actuator
Series 76
1A through 7C
Explosionproof:
1X through 5Y
1 Phase: 110V, 220V & 240VAC
24V DC, 24V AC/DC
1 Phase: Torque up to 26,500 in-lbs (3,000 Nm)
DC: Torque up to 2,600 in-lbs (300 Nm)
Specifications
Electric Actuator - Series 76
1A through 7C
Explosionproof:
1X through 5Y
1 Phase: Torque up to 26,500 in-lbs (3,000 Nm)
DC: Torque up to 2,600 in-lbs (300 Nm)
Ingress Protection: IP66/67
Submersible: IP68 Optional
- Class F Motor Insulation 311°F(155°C)
- Embedded thermal protection 275°F (135°C)
DC Brushed Motor
- Class B Motor Insulation 266°F (130°C)
-40°F |-40°C to 140°F |+60°C Optional
Anodized interior and exterior
Polyester powder top coated
Explosionproof: FCC, ICES, ATEX, IECEx, CSA
S4 (Modulating) Per EN 60034-1
On/Off Applications: Per EN 22153 (Class A)
Modulating Applications: Per EN 22153 (Class C)
Features & Benefits
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1. High Visibility Position Indicator:
The display indicates valve position through the full range of travel The O-ring sealed dome is made of high impact, heat, chemical and ultraviolet resistant clear polycarbonate and designed to withstand caustic wash down ensuring excellent corrosion protection.
Weatherproof: Sizes 1 through 4 and size 6 have a top mount dome, prominently labeled and color coded yellow for open, red for close.
See Fig. 1.
Sizes 5 and 7 use 3: 1 auxiliary gear, will have a clear dome with green markings indicate open while red indicates closed. See Fig. 2.
Explosionproof: Sizes 1 through 5 uses flat indicator window dial.
See Fig 3. -
2. Enclosure:
The housing is fully anodized internally and externally, with a polyester powder topcoat applied to ensure corrosion, wear, and UV resistance in the harshest environments.
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3. Captive Cover Bolts:
The cover is attached to the base by captive stainless-steel bolts placed outside the sealing area.
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4. O-ring Seal:
The o-ring between the cover and base provides environmental sealing preventing internal corrosion.
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5. Manual Override:
Hand-operated declutch lever physically disconnects the motor drive from the handwheel for manual operation The lockable lever prevents any unauthorized operation.
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6. Mechanical Travel Stops:
Designed to prevent overtravel in the open or close direction during manual operation Travel stops bolts include a locknut to prevent loosening, and seals to prevent water ingress.
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7. Motor:
Fan cooled, high torque, squirrel Caged AC Induction Motor. Class F insulation. Or DC brushed type.
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8. Limit Switches:
Rotary switch type for easy configuration 4 limit switches standard.
> 2 Available for position feedback.
> Additional limit switches available. -
9. Torque Switches:
Open and close torque switches protect the valve for actuator sizes 2 and above. Switches are set at unit rating to eliminate nuisance tripping.
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10. Heater:
Thermostatically controlled to combat condensation build-up in the unit.
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11. Local Control Station:
Integral to actuator housing Local-Remote-Stop padlockable selector, Open-close selector, Power (white), Open/Opening (Red), Remote (Blue), Close/Closing (Green) and Fault (Yellow) LED lights Available as an option for 1 Phase and standard in 3 Phase.
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12. Output Drive:
Double reduction worm gear design allows output motor torque to be transmitted to the valve The design incorporates a self-locking feature preventing external forces adversely effecting desired valve position and equipped with anti-rotation mechanism.
> Worm: Alloy Steel
> Worm Gear: Bronze -
13. Mounting:
Optional flange sizes for easy installation to any valve type and size per ISO 5211 and MS SP-101.
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14. Conduit Entries:
Incoming power and control cable connections Standard protective plastic covers.
Series 76 Electric Actuators - Weatherproof
Size Range:
1A through 7CEnclosure Type:
Weatherproof
Conduit Entries:
Sizes 1 thru 5 = 3x 3/4” NPT or 3x M20
Sizes 6 thru 7 = 2x 3/4” NPT + 1x 1”NPT or 2x M20 + 1x M25
Series 76 Electric Actuators - Explosionproof
Size Range:
1X through 5YEnclosure Type:
Explosionproof
Conduit Entries:
All sizes = 2x 3/4” NPT or 2x M25