Travaini Pumps USA PVL 10-15, Инструкция по установке и эксплуатации

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Installation and Operations Manual
15
Accessories and Protective Devices
Accessories
The following accessories are available for Travaini Rotary Vane Vacuum Pump systems.
Flexible connectors. The flexible connectors are used in piping systems to eliminate vibrations from transmitting from
machinery throughout the piping network. Types of flexible connectors used include braided type, flexmaster type
and quick-joint type connectors. Braided type flexible connectors are used
mostly on the Travaini Rotary Vane Vacuum Pump systems. Please refer to the attached specification
sheet for further details on the braided type flexible connectors.
Vibration isolators. Vibration isolators are used to eliminate vibrations, noise and shock from transmitting from
machinery to the floor. Floor mount type vibration isolators are used mostly for the rotary vane vacuum pump systems.
The vibration isolators have a steel top plate and threaded insert and steel base both totally imbedded in an oil resistant
neoprene. The isolators bolt onto a tank or base-frame with one bolt and have two mounting bolts to mount to the
foundation or floor.
System isolation valve. Simply an isolation valve that is installed on the vacuum receiver tank or vacuum pump. The
valve is usually to isolate the vacuum system from the piping network.
Inlet Filter
.
An inlet filter is installed as standard on the Travaini Rotary Vane Vacuum Pumps 7.5 Hp and up 5Hp
and blow need to have an inlet filter installed in the inlet piping. Our standard medical packages include this feature.
Protective Devices
The following protective devices are used to protect the pump from being damaged and to help with maintenance.
High temperature switch. Supplied as standard on all rotary vane medical packages. The switch is used to signal
when the temperature of the oil is exceeding the recommended level. Electrically, the switch will shut the pump down.
The pump will not restart until the alarm condition is acknowledged and is reset. The switch is a “snap disc” type of
switch that is normally closed. When the temperature reaches the maximum set-point, the switch will open. Once the
switch has opened, there is a 10-20 degree differential that the temperature will need to drop in order for the switch to
close.
High backpressure switch. Optional. The high backpressure switch is installed in the discharge box of the rotary vane
vacuum pump. When the backpressure reaches a pre-determined level, the switch will signal the control panel.
Installed on the control panel is a high backpressure light which, when lit, means that the exhaust element in the
vacuum pump needs to be replaced. Note that the high backpressure switch will not shut the pump down, but the
exhaust element must be replaced soon as possible.
Lag pump on alarm. An NFPA 99 requirement. An audio/visual alarm that signals lag pump operation. Once the
alarm triggers, the alarm must be acknowledged and reset. The alarm will not reset if the lag pump is still in operation.
This alarm is vacuum is greater than the supply of the lead pump only.
Transformer failure light. All standard medical rotary vane vacuum pump systems are supplied with two (2) control
voltage transformers (One primary and one for backup). In the event that the primary transformer fails, the backup
transformer will automatically pick-up and the transformer failure light will be illuminated. The faulty transformer
should be replaced as soon as possible. When the primary transformer fails, the operation of the system will not be
interrupted. If the backup transformer fails, the system will shut down.
Low oil level switch. Optional. The low oil level switch is installed in the separator/reservoir of the rotary vane
vacuum pump. The switch is a float type of switch. If the level switch is triggered, the affected pump will shut down.
The low-level light on the control panel will be illuminated. The low-level switch will be wired into the main alarm of