TapFlo Guardian system Mk3.1, Руководство по эксплуатации и техническому обслуживанию

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GUARDIAN MK3.1
Issue : 020913-B TPUK-GU31X 4
Principle of operation
The Guardian is an energy conservation device designed to protect an air
operated double diaphragm (AODD) pump from operating in an inefficient
manner that uses unnecessary energy and reduces the life of its parts.
The Guardian is a fully pneumatic, chemically inert pressure trip with integral
latching output control valve with the following features
•
Fully pneumatic
•
Floating PTFE diaphragm
•
316L stainless steel, PTFE (conductive) or Aluminum wetted parts
•
Pilot output to control the associate pump
•
Integral reset button
•
Integral visual indicator
•
Pneumatic alarm output
•
External reset from solenoid valve
•
Mounting bracket
The Guardian monitors pressure, changing it’s output if the monitored
pressure rises above or falls below the set point of the Guardian (dependant
on configuration), controlling the associate pump accordingly for the following
applications
•
Dry-Run & Stop (DR&S)
•
Dead-Head & Stop (DH&S)
•
Dead-Head & Restart (DH&R)
•
Barrier pump monitoring and control (BARR)