Manual

4
2600 Emrick Blvd • Bethlehem, PA 18020 • USA •800-922-0085 • www.warrencontrols.com
INSTALLATION – TYPE 200
VACUUM BREAKER
• TodeterminewhichType200VacuumBreaker
you have, locate the part number on the
factory serial number label (See Information
Present on Type 200 section for location of
important information on vacuum breaker).
Then see Type 200 Specications section to
determine the performance and physical
characteristics of the vacuum breaker).
• Thevacuumbreakermustbeinstalledinthe
vertical position with its mounting connection
downward. A anged vessel mounting
connection must be a at surface to prevent
distortion of surfaces when the connection is
tight. A warped vessel mounting ange may
cause a leaky joint or break a cast iron Type
200 mounting ange.
• Eliminatevibration.Type200arenotsuitable
in installations where vibration exists.
• Before installing, be sure vacuum breaker
and piping are clean inside and free of scale,
chips, welding spatter, and foreign material.
Thoroughly blow out or ush pipe lines.
• Do not obscure factory serial number label
with paint.
OPERATION – TYPE 200 VACUUM BREAKER
• When no vacuumispresent the vesselpressureactson thevacuumbreaker’sdischolderpressingthedisc
intotheseatsealingthetank’s/pipeline’scontentsinside.Whenthevesselpressuredropsbelowatmospheric
pressure a vacuum forms. The atmospheric pressure then acts on the discholder to overcome the force of the
vacuumbreaker’sspring.Theseatanddiscseparateadmittingoutsideair.TheType200VacuumBreakeropens
gradually to admit outside air to relieve the vacuum in the tank/ pipeline. The Type 200 Vacuum Breaker cannot
be preset to open at a particular setpoint.
MAINTENANCE – TYPE 200
VACUUM BREAKER
• Type200for the mostpartaremaintenance
free when sized and chosen properly for the
application. Maintain the uid pressure and
temperature within the limits of the vacuum
breaker (See Information Present on Type 200
section for location of important information
on vacuum breaker and Type 200 Specica-
tions section for additional details).
• Openingsinadapterbodymustbekeptun-
blocked. The disc must be kept free of dirt
and debris. The disc must return freely to the
closed position if pushed away from the valve
body.
• Perform Seat Inspection during scheduled
maintenance periods. If necessary clean seat.
• Perform Opening Force Test during sched-
uled maintenance periods. If necessary adjust
opening force.