TECHNICAL MANUAL MT103
26
4.4
MONITOR
The monitor is an emergency regulator which takes over from the active regulator if for any reason the latter
permits the downstream pressure to rise up to the value set for its intervention.
When pressure regulator Reflux 819 or incorporated monitor PM/819 are used as monitor, to increase response
time an accelerato is installed.
Installation of accelerator is recommended fo use as safety accessory according to Directive 97/23/EC (PED).
Two alternative solutions are offered for this safety device associated to Reflux 819/FO regulators: incorporated
monitor or in-line monitor.
4.4.1 PM/819 INCORPORATED MONITOR
This emergency device (fig. 16) is fixed directly on the body of the service regulator. In this way, the two pressure
regulators use the same valve body but:
- they are governed by two distinct pilots and two independent servomotors;
- they work on independent valve seats.
Fig. 16
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Содержание REFLUX 819/FO
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Страница 8: ...8 sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 11: ...TECHNICAL MANUAL MT103 11 Fig 2A vent 204 A FO PILOT sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 45: ...TECHNICAL MANUAL MT103 45 204 A FO 205 A FO PILOT Fig 27 sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 46: ...TECHNICAL MANUAL MT103 46 PRE REGULATOR R14 A FO Fig 28 sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 52: ...TECHNICAL MANUAL MT103 52 VERSIONS Fig 29 A sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 66: ...66 TECHNICAL MANUAL MT103 10 0 LIST OF RECOMMENDED SPARES sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 72: ...72 TECHNICAL MANUAL MT103 PM 819 MONITOR DN 2 sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...
Страница 81: ...TECHNICAL MANUAL MT103 81 HB 97 SLAM SHUT DEVICE DN 4 sales mvandc com Phone 877 566 3837 Fax 925 407 2903 ...