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Principle of operation:
Compressed air is supplied to the system via a HMS water separator (item 4). The air is fed into the
RMS 2000 remote control valve (item 2) and from there via the port 2A (brown remote control hose)
- to the deadman handle (item 6)
- and to the pressure regulator (1/4" item 30) and the 2/3 way valve (item 32).
When the deadman handle is depressed, the compressed air is fed through the yellow remote control
hose
- to the remote control valve port 2B (item 2)
- to the blast media metering valve (item 3) which opens
- and to the regulator governed by pilot air (item 31).
This causes the blast machine to become pressurised, and the blasting process starts.
The desired blasting pressure can be set at the pressure regulator item 30.
When the deadman handle is released, the air pressure ceases to be supplied via the yellow remote
control hose to the remote control valve, so that:
- the RMS 2000 (item 2) is no longer pressurised
- the blast machine is no longer pressurised
- the blast media metering valve (3) closes
- the 3/2 way valve (32) closes
A detailed description of the method of operation of the blast media metering valve used can be found
in the metering valve manual supplied.
Options:
- Splitting the RMS 2000 remote control valve into the
o RMS 1500 inlet valve
o RMS 500 outlet valve
- Additional safety valve (size to be specified by the customer)
- Dual function deadman handle; this allows
o the blast media metering valve to be opened and closed whilst the deadman handle
is depressed
o to blast with air only, for instance when cleaning
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