2.8
Flow regulating valve
•
The system integrity and performance will be impaired if the air inlet to the vacuum/flow
regulating valve silencer is obstructed.
•
Once the regulating valve has been set to produce the system performance, the adjuster
must not be moved without carrying out a full system performance check.
1
Spring
2
Adjusting nut
3
Fixation nut
4
Sieve mesh
The flow regulating valve is a spring loaded plate valve which senses the vacuum in the disposal system. The
plate valve opens to allow air ingress into the disposal system thereby controlling the vacuum level. The
number and installation position of the regulating valves fitted to a system is a function of system design to
achieve the required performance. Each valve, by controlling the vacuum level, ensures that the flow rate at
the terminal unit is maintained within the design limits, regardless of how many terminal units are in use. The
flow regulating valve also ensures that the maximum vacuum of 150 to 200 mbar below atmospheric pressure
is not exceeded. The flow regulating valve spring force is manually adjusted and set during commissioning
and further adjustment should not be necessary.
The air inlet of the regulating valve can be fitted with an air inlet filter (optional) to reduce the noise of the
induced air flow and to avoid dust from being sucked in. The flow regulating valve also ensures that the
exhauster unit does not run on a totally closed system, thereby reducing the possibility of exhauster unit
overheating.
Instruction book
19
Summary of Contents for AGS 1560
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Page 11: ...Simplified schematic of a AGS Simplex installation Instruction book 9...
Page 13: ...AGS Simplex AGS Duplex Instruction book 11...
Page 16: ...Service diagram AGS Simplex 1 ph typical Instruction book 14...
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