Products

 Introducing The Liquid Ring Vacuum Pumps
 

Liquid Ring Vacuum Pumps

The PVI pumps  contain two main parts: a) Rotor (shaft plus impeller) b) casing (cylinder and cylinder head) which in spite of its simple mechanism is offering from a very high quality of performance.
The material used in the pumps have a high quality and manufacturing is done under the ISO, DIN standards with accuracy of 0.01 mm tolerance which leads to the minimum internal leakage and increasing of the pump efficiency. The Rotor of pumps are dynamically balanced with a computerized device which  leads to elimination of dynamic vibration. Each pump is fully tested for its capacity, vacuum pressure, power consumption and other efficiencies. All parts are controlled %100 at the (Q.C) department.

Operating principle
Simple and reliable

Liquid with concentric rotation is pushed against the outer wall of the cylindrical chamber by Centrifugal force. As the liquid thrown Outwards, a space is created in the central area of the chamber and causes the fluid and gas/vapor to be subjected to a suction effect as the volume of space is increased between the impeller blades after passing the inlet port. The gas/vapor is subsequently decreased as it is forced into a smaller space prior to being ejected through the discharge port under compression.
In order to eliminate overheating during Compression and to replenish the liquid at the time of operation, the system is continuously supplied with coolant (normally water).
 

UPX

A) The two stage type (with valve - side plate) up to the final vacuum pressure 30mmHg absolute, of capacity 40 m3/h up to 700 m3/h .
 

A - PVI - T352

B) The single stage type (Rotor chamber) up to the final vacuum pressure 80mmHg absolute, of capacity 600 m3/h up to 5000 m3/h .

B - PVI - 600

¦ low water consumption.
¦ low energy consumption.
¦ No need for lubrication.
¦ Longer life of bearing.
¦ No Vibration with low level noise.
¦ Capability of simultaneous transfer of gas and liquid.
¦ Low cost of maintenance and service.
¦ One year guarantee and fifteen years of after sale services.
¦ Oil free water and air output.
¦ The real capacity of suction in comparing with other pumps.
¦ Increasing the speed of reaching to the maximum suction pressure.
¦ The latest technological achievement.
¦ The higher vacuum pressure (up to %99 relative vacuum-oil packages).
¦ Possibility of having vacuum up to 0.01 mbar absolute.
   (combination of Vacuum pumps and Rotary pumps).
¦ Designed for heavy duty and none stop working condition.
¦ simple installation of vacuum pumps with no need to extra equipments even in the large samples.
¦ Using mechanical seal in two stage pumps. (for other models by request).
¦ lack of contact and friction of internal parts of the pumps and therefore increase of mechanical efficiency and lifetime of the machine.

Explanations:
1) Capacities at suction inlet have been measured in conventional conditions as F.A.D (FREE AIR DELIVERY).

2) The temperature of the entering air -20˚C environment pressure (760 mmHg) 1013mbar, and the temperature of service water 15˚C (tested in equal condition).

3) Main parameters that affect on the capacity of vacuuming: Air or Inlet gas density, service liquid specification (pressure, Density, Viscosity), Service liquid temperature, Pump outlet pressure, Gas and vapour suction pressure, Rotation speed of vacuum pump.

4) Possibility of using the V-belt system for transferring the power, as request, and changing the capacity of the vacuum pumps. (PVI-T502 and above)

5) The extra equipments which can be ordered for the vacuum pumps are as follows:
Separating tank of air and water, Anti cavitation valve VGB, Unloading Valve VAD, Check valve VAC, The electrical automatic valve for entry and evacuation.
(Solenoid Valve) .
 

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