Bell & Gossett A07211A Check-Trol Flange Operational Limits - Manual (Page 2)

OPERATING INSTRUCTIONS
To isolate the circulator from the system, turn the handle of both isolation valves
clockwise 90° to close the valve. Remove circulator for repair/replacement.
IMPORTANT: Relieve pressure from the circulator by slowly loosening the bolts allowing
the water to slowly drain from the pump body. Refer to the circulator instruction manual
when reinstalling a circulator. After a pump is reinstalled, turn the handle of both isolation
valves counterclockwise 90° to open the valves for normal operation.
SERVICE INSTRUCTION
There is no service required for the Isolation or Check-Trol™ flanges.
CAUTION: Corrosion or leakage of the valves can cause damage or injury.
Periodically inspect the valves for signs of leakage or corrosion. If corrosion
or leakage is noted, the valves must be replaced. Failure to follow these instructions
could result in property damage and/or moderate personal injury.
Bell & Gossett
PRINTED IN CHINA 8-09
DISCHARGE SIDE
USE CHECK-TROL TM FLANGE
SUCTION SIDE
USE ISOLATION FLANGE
STANDARD
PIPING
VALVE OPEN
NORMAL OPERATION
VALVE CLOSED
FOR SERVICING
USA
Bell & Gossett
8200 N. Austin Avenue
Morton Grove, IL 60053
Phone: (847) 966-3700
Facsimile: (847) 966-9052
www.bellgossett.com
INTL.
Bell & Gossett / Export Dept.
8200 N. Austin Avenue
Morton Grove, IL 60053
Phone: (847) 966-3700
Facsimile: (847) 966-8366
www.bellgossett.com
© COPYRIGHT 2009
For Check-Trol™ & Isolation Flange Sweat Connections:
a) Clean tube ends and valve connections thoroughly per good piping practices with a
fine grade emery cloth or fine grit sandpaper.
b) For soldering, use 95-5 (Tin-Antimony) solder and a good grade of flux.
c) Use a torch with a sharp pointed flame.
d) When sweating joints, first wrap the valve body with a cool wet rag, then direct the
flame with care to avoid subjecting the valve to excessive heat. Allow the valve to
cool before touching or operating.
e) Check the soldered connections for leaks.
CAUTION: Heat associated with the use of silver solder may damage
valve and void the warranty. Do not use silver solder. Failure to follow these
instructions could result in property damage and/or moderate personal injury.