Vacuum Technology Know How - Triumf

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Soundproofing encapsulation for indoor and outdoor installation
Silencers
Dust separators
Flushing devices
Vibration isolation
Liquid separators
Gear chamber extraction
Sealing gas supply
Measurement connections
In the case of many Roots pumps, it is possible to use the measurement connections on the
inlet and pressure sides of the pump. To do this, the existing locking screws can be replaced
with small ISO-KF flange unions. This enables connection of appropriate temperature sensors
and pressure sensors for monitoring the pump.
Sealing gas connection
When pumping solvents or reactive gases, the risk exists that the lubricant will be significantly
diluted as a result of condensation. Reactive gases or vapors can also attack parts of
the gear chamber. For the most part, this risk can be avoided by admitting a sealing gas in
the area of the shaft feedthrough between working space and gear chamber. Inert gases,
mostly nitrogen (N ), are used as the sealing gas.
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Gear chamber extraction
In the case of all processes in which large Roots vacuum pumping stations must reach
certain pressures in short cycle times (fast evacuation), it is practical to pump down the gear
chambers of a Roots pump via an oil separator, by means of a separate vacuum pump in each
case. This prevents gas from flowing out of the gear chamber and into the suction chamber,
thus enabling the desired working pressure to be reached faster. The desired working
pressure will determine whether it is possible to connect the gear chamber toward the
backing-vacuum side of the Roots pump.
Flushing devices
A flushing device can be used for processes in which deposits form in the suction chambers.
The design of this device will be coordinated individually with the customer on the basis of
the specific requirements. The flushing device for standard pumps requires the use of sealing
gas to prevent the flushing liquid from reaching the bearings or gear chambers.
Surface protection
If the media to be pumped down are corrosive, components that come into contact with
the product can be provided with durable surface protection. The plasma-polymer thin-layer
system consists of a bonding agent layer, a corrosion-protection layer and a non-stick coating.
The thickness of the layer is less than 1 μm. Upon request, the pump chamber can be
phosphated, vented with nitrogen and vacuum sealed in order to provide short-term surface
protection, e.g. for warehousing and shipment.
Seals
Roots vacuum pumps come factory-equipped with O-rings made of FPM. For special applications,
all pumps can be equipped with the specific O-rings or seals that are required for the
respective application.
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