Emerson Bettis PressureGuard, Installation And Maintenance Manual

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March 2014
Installation and Maintenance Manual
E-90090005 Rev. A
10
Section 5: Installation
Installation
5�1 SCH Installation
Please refer to Figure 3. (BETTIS
TM
PressureGuard™ Schematic) for an example of ESD
system. While not necessarily a typical configuration, Figure 3. (BETTIS
TM
PressureGuard™
Schematic) illustrates the connections, operating method, and a variety of sensing and
control options available from BETTIS™ PressureGuard™ system.
The Self-Contained Hydraulic (SCH) module is fully-lubricated, filled with hydraulic fluid,
and adjusted as-delivered from the factory. An aviation grade hydraulic fluid (UNIVIS HVI
13 or equivalent) is used in all operator systems, unless a different fluid is requested by
the customer. The SCH module is usually factory installed on the operator, but can be field
installed by the user.
NOTE:
Any hydraulic or electrical connections that need to be made in the field will be tagged at
the factory.
Typical specifications of available SCH modules include:
• Medium pressure SCH module with HP-2SC Handpump:
275 [psi] MAWP
— Includes 0 to 600 [psi] HP gauge and 0 to 200 [psi] LP gauge.
— HP Relief set at 275 [psi].
— LP Relief set at 140 [psi].
— Regulator set at 90 to 100 [psi].
• High pressure SCH modules with HP-2SC or BHP 3 Handpumps available for
several pressures:
2000 [psi] MAWP
— Includes 0 to 2000 [psi] HP gauge and 0 to 200 [psi] LP gauge.
— HP Relief set at 1500 to 1750 [psi].
— LP Relief set at 140 [psi].
— Regulator set at 90 to 100 [psi].
3000 [psi] MAWP
— Includes 0 to 3000 [psi] HP gauge and 0 to 200 [psi] LP gauge.
— HP Relief set at 2000 to 3000 [psi].
— LP Relief set at 140 [psi].
— Regulator set at 90 to 100 [psi].
• Additional higher pressure SCH modules are available. Please consult factory for
details.