| Certificates/Standards: | N; |
| Monthly Output: | Not provided |
| Regional: | Italy |
| Packaging Information: | Not provided |
| Mode Of Payment: | Not provided |
| Delivery Lead Time: | Not provided |
| Main Sales Markets: | North America，Central/South America，Western Europe，Eastern Europe，Australasia，Asia，Middle East |
| Sample Provided: | No |
| Sample Policy: | Not provided |
| Minimum Quantity: | Not provided |
The lubrication allows this pumps to intake water vapour. To avoid a
condensation of the water vapour, the pumps are equipped with a system
called “Gas Ballast” that introduces air in the compression stage and
changes the vapour saturation pressure thus avoiding the condensation.
DVP developed a WR pump version with an improved and reinforced Gas
Ballast system. The characteristics of this series are: Gas Ballast always
inserted; external pirex tube to constantly maintain oil level, oil condition
and oil viscosity under control; manual water and oil drain valve; switch
for the maximum liquid (water-oil) level in the tank.
Lubricated vacuum pumps are used when the intake fl ow may contain
moisture, or when a better fi nal pressure is required. These pumps
may run continuously within certain pressure ranges, or connected to
appropriately sized containers for the pump fl ow rate and that can be
emptied.
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