JOYAM deals in the range of Low & Medium range of vacuum with its various positive displacement and vane principle pumps.

Positive displacement pumps include the Water ring Vacuum Pumps, Boosters and Screw type pumps.

Vane principle includes the Oil Ring type and Oil flooded vacuum pumps.

Note: The following procedure can be used to select a pump model that meets process requirement or to rate an existing pump for a particular application. The calculations for selection are meant to be used in preliminary evaluation the final results should be verified with the pump manufacturer.

Vacuum Pump Technical Selection

• Vacuum requirement in any industry is based on various parameters, this parameters might be related to process inside and outside conditions, there are many variables effecting the exact vacuum pump selection, a small collection of questions are presented here for the same.

Direct influences.

Volume of the vessel in which vacuum is to be done

The time to achieve the required vacuum (i.e. Evacuation time)

Process temperature.

Ambient temperature where the vacuum pump is to be mounted.

Type of Water-cooling arrangement provided in the process.

Leakages occurring in the process.

Capital and maintenance cost of the Vacuum Pump.

Indirect influences.

• Vapours to be handled by the vacuum pump.
• PH of water being circulated as sealing water in the vacuum pump.
• Compatibility of Material of construction of vacuum pump as per the process.
• Condensing temperature of the incoming suction vapours.
• Suction vapour pressure.(Ideally should be atmospheric)
• Why vacuum pump (e. the replacement of ejector system for saving the steam consumption)