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BRAY Series 70 Tunnel Damper Electric Actuator

Operation and Maintenance Manual

2

1.1 H

azard

-

free

 

use

This device left the factory in proper condition to be 
safely installed and operated in a hazard-free manner. The 
notes and warnings in this document must be obeserved 
by the user if this safe condition is to be maintained and 
hazard-free operation of the device assured.

Take all necessary precautions to prevent damage to the 
actuator due to rough handling, impact, or improper 
storage. Do not use abrasive compounds to clean the 
actuator, or scrape metal surfaces with any objects.

The control systems in which the actuator is installed must 
have proper safeguards to prevent injury to personnel, 
or damage to equipment, should failure of system 
components occur.

1.2 Q

ualified

 P

ersOnnel

A qualified person in terms of this document is one 
who is familiar with the installation, commissioning 
and operation of the device and who has appropriate 
qualifications, such as:

•  Is trained in the operation and maintenance of 

electric equipment and systems in accordance with 
established safety practices

•  Is trained or authorized to energize, de-energize, 

ground, tag and lock electrical circuits and equipment 
in accordance with established safety practices

•  Is trained in the proper use and care of personal 

protective equipment (PPE) in accordance with 
established safety practices

•  Is trained in first aid 
•  In cases where the device is installed in a potentially 

explosive (hazardous) location – is trained in 
the operation, commissioning, operation and 
maintenance of equipment in hazardous locations

WARNING

The actuator must only be installed, commissioned, 
operated and repaired by qualified personnel.

The device generates large mechanical force during 
normal operation.

All installation, commissioning, operation and 
maintenance must be performed under strict 
observation of all applicable codes, standards and 
safety regulations.

Reference is specifically made here to observe all 
applicable safety regualtions for actuators installed in 
potentially explosive (hazardous) locations.

s

afeTy

 i

nsTruCTiOns

 - d

efiniTiOn

 

Of

 T

erms

read and fOllOW THese insTruCTiOns

saVe THese insTruCTiOns

WARNING indicates a potentially hazardous situation which, if not avoided, could result 

in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in 

minor or moderate injury.

NOTICE

used without the safety alert symbol indicates a potential situation which, if not 

avoided, may result in an undesirable result or state, including property damage.

!

!

!

!

Содержание 70-0122-113E0-536

Страница 1: ...SERIES 70 TUNNEL DAMPER MODEL ELECTRIC ACTUATOR OPERATIONAND MAINTENANCE MANUAL ...

Страница 2: ......

Страница 3: ...ting to a valve 4 field wiring 4 travel limit switch and mechanical travel stop adjustment 5 clockwise adjustments 5 counter clockwise adjustments 6 heater 6 typical wiring diagrams form zz dpdt db switches on off service 7 Basic Disassembly and Assembly Instructions 8 appendix a basic tools 9 appendix b actuator troubleshooting chart 9 appendix c exploded view and parts list of housing size 12 10...

Страница 4: ...sandequipment in accordance with established safety practices Is trained in the proper use and care of personal protective equipment PPE in accordance with established safety practices Is trained in first aid In cases where the device is installed in a potentially explosive hazardous location is trained in the operation commissioning operation and maintenance of equipment in hazardous locations WA...

Страница 5: ...termined by an indicator cam shaft linked to the output shaft In the declutchable condition themanual overridedrivesthewormshaftwhenengaged CW vs CCW Due to the fact that the Series 70 is a rotary actuator there are two directions that it can turn to actuate a device clockwise and counter clockwise Depending on theapplicationtheactuatorisgoinginto andthephysical constraintsthat applicationpresents...

Страница 6: ...nting on Bray butterfly valves With proper mount ing hardware the S70 actuator can be installed onto other quarter turn valves or devices such as a damper NOTICE The standard mounting position for the actuator is to orient the unit with its handwheel in a vertical plane and parallel to the pipeline If the actuator is to be mounted on a vertical pipe it is recommended that the unit be positioned wi...

Страница 7: ...the mechanical stop for the CW position and back it off so that it does not interfere with actuator travel CW stop located on right when viewed from travel stop side of actuator 2 Reference the striker bar for damper position 3 Manuallyoperatetheactuatorhandwheelclockwise until the valve reaches the desired fully CW position 4 Rotate the red adjusting knob by hand or with a flat head screwdriver u...

Страница 8: ...yle which has a unique temperature resistance characteristic The heater self regulates by increasing its electrical resistance relative to its temperature The heater does not require external thermostats or switches to control its heat output It is constructed of a polycrystalline ceramic sandwiched betweentwoconductors andwrappedinsideathermally conductive electrical insulator Connecttheheaterwir...

Страница 9: ... for actuator in its fully open CW Condition Wiring diagram for CCW Open Unit with form ZZ DPDT DB travel switches Drawn for actuator in its fully closed CW condition Field Wiring Actuator Field Wiring Actuator Note Bray Series 70 Tunnel Damper electric actuator wiring is the same regardless of CW or CWW application Control is achieved through field wiring ...

Страница 10: ... the Gearmotor first disconnect the mo tor leads which run to the capacitor and unscrew the mounting screws four lower one upper The motor can now be removed vertically out of the unit Note do not misplace the alignment pin 5 To remove the worm shaft spur gear remove the spring pin using a 3 32 punch then slide the gear off the end of the worm shaft for Housing Size 12 Remove bowed E clip retainer...

Страница 11: ...emperature Allow time to cool Actuator operates in reverse directions Field wiring is reversed Rewire field wiring Actuator does not fully close damper or open damper Limit switches are depressed Readjust travel limit switches Mechanical travel stop is stopping actuator Adjust mechanical travel stops Damper torque requirement is higher than actuator output Manually override out of seat try angle s...

Страница 12: ...PIN 25 BUSHING 26 THRUST WASHER 27 RETAINING RING 28 OUTPUT WORM GEAR SEGMENT 29 O RING S 128 30 CAPACITOR 31 TERMINAL STRIP 32 ARMACELL TUBING 33 OVERRIDE SPRING PIN 34 TRAVEL STOP BOLT 35 HEX NUT 36 NYLON FLAT WASHER 37 O RING 38 WORM SHAFT 39 OVERRIDE DRIVE PIN 40 SPRING PLUNGER 41 MANUAL OVERRIDE SHAFT 42 MANUAL OVERRIDE SLEEVE 43 O RING S 126 44 O RING S118 45 RETAINING RING 46 HAND WHEEL CW ...

Страница 13: ... RIBG S 232 25 CAPACITOR 26 TERMINAL STRIP 27 ARMACELL TUBING 28 OVERRIDE SPRING PIN 29 TRAVEL STOP BOLT 30 LOCK NUT 31 NYLON FLAT WASHER 32 O RING 33 WORM SHAFT 34 OVERRIDE DRIVE PIN 35 SPRING PLUNGER 36 MANUAL OVERRIDE SHAFT 37 MANUAL OVERRIDE SLEEVE 38 O RING S 126 39 O RING S118 40 RETAINING RING INTERNAL 41 HAND WHEEL CW TO OPEN 42 HANDWHEEL WARNING LABEL 43 HAND WHEEL CCW TO OPEN 44 PIN SLOT...

Страница 14: ...BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual 12 ...

Страница 15: ...BRAY Series 70 Tunnel Damper Electric Actuator Operation and Maintenance Manual 13 ...

Страница 16: ...IONAL Inc 13333 Westland East Blvd Houston Texas 77041 281 894 5454 FAX 281 894 9499 www bray com Bray is a registered trademark of BRAY INTERNATIONAL Inc 2014 Bray International All rights reserved OM 70TD 001 07 2014 R CONTROLS ...

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