Frequently asked questions

Question: What kind of oil should I use for the lubrication of the vanes ?

Battioni Pagani Pompe ® recommends the use of Battioni Pagani " Vacuum Pump Oil "

- Good resistance to oxidation

- Strong anti-rust property

- Excellent antifoam

- Operating temperature: - 5 ° C to 160 ° C

In the absence of " Vacuum Pump Oil " use new mineral oil ISO VG 100 (mean value of the kinematic viscosity = 100 mm²/s = 100 cSt )

Question: What kind of oil should I use for the lubrication of the gears ?

Use new mineral oil ISO VG 460 (mean value of the kinematic viscosity = 460 mm²/s = 460 cSt )

Question: What are the recommended operating speed?

SERIES MEC/ STAR

Pumps with multiplier (M,G) must not exceed 600 r/min. The recommended speed is 450-500 r/ min.

Pumps with multiplier (MA, GA) must not exceed 1000 r/min. The recommended speed is 800 r/min.

D, H, P pumps must not exceed 1400 r/ min . The recommended speed is 1200 r/min .

SERIES WPT / KTS / KTM / WSM

Pumps with multiplier M,G must not exceed 600 r/min. The recommended speed is 450-500 r/min.

D, H, P pumps must not exceed 1200 r/min. The recommended speed is 1000 r/min.

Question: When should I replace the vanes ?

The vanes should be replaced when their width reaches 90% of the initial size . The instruction manual for use and maintenance describes how to control the wear of the vanes.

Question: What items  should be replaced when replacing the vanes ?

It’s advisable to replace the gaskets, the seals and in some cases the fixing screws . All the necessary items are included in the pump rebuild kits.

Question: When is the installation of a rotary vanes vacuum pump advisable?

The rotary blades vacuum pumps are suitable for discontinuous functioning time.  The operation times are specified in the manual for use and maintenance.

Question: When is the installation of a BALLAST rotary vanes vacuum pump advisable?

The BALLAST series rotary blades vacuum pumps were designed and manufactured to allow their use in continuous service at -0.70 bar, thanks to a cooling system for air injection at ambient temperature which, after passing through a filter and with the resistance of a non-return valve, enters the compression side, decreasing the internal temperature. The intended use is semi-industrial, suitable for all applications that do not require the exceeding of substantial and consistent hydrostatic pressure and consequently of a very high degree of vacuum but which require a longer operation time compared to traditional use.

Question: When is the installation of a water cooled rotary vanes vacuum pump advisable?

The water cooled rotary blades vacuum pumps are suitable for high continuous functioning time.

Always consult the manufacturer for the choice of the most appropriate pump.

Question: What is the maximum suction depth?

The maximum suction depth is about 6 - 8 m from the pump axis.

Question: What are the main periodical maintenance operations to be carried out?

WASHING OF THE BODY

If sewage enters the Rotary blades vacuum pump, the inside of the body must be washed immediately, by making it suck in diesel or fuel oil through the discharge elbow with the Rotary blades vacuum pump in compression phase. After this operation make it suck in oil. The same operation should be carried out when the Rotary blades vacuum pump has to remain inactive for a long time. In this case, disconnect the suction and delivery tube connected to the valves and hermetically seal the manifold cover because the gasses that form inside the tank would pass into the Rotary blades vacuum pump and cause the inside of the body to rust and this in turn could cause the blades to break when the system is re-started. In order to avoid rust formation, do not use water. If the body is washed after it is disassembled, it is advisable to carry out a preliminary wash with detergents (e.g. thinners) before carrying out the above operation.

WASHING OF OIL TANK

Wash the oil tank at least once a year. Remove the manifold, and then wash it using solvents.

WASHING AND CLEANING OF VALVES

Wash and clean the valves at least once a month. Remove the valves, then wash them with water or, if necessary, non-corrosive detergents.

CHECKING OF VALVES

Regularly check that all the valves, for both overflow and pressure/vacuum, are still working efficiently.

Question: What are the main troubleshooting operations?

These operations are described in the manual for use and maintenance.

Question: What are the advantages of using a rotary vane vacuum pump instead of a rotary lobes pump?

The rotary blades vacuum pump is cheaper  than a rotary lobes pump.

There are no limitations in the size of the material to be sucked.

The rotary blades vacuum pump doesn’t provide the entry of the process liquid, but in any case it can be easily cleaned using a “Flushing Kit”.

Question: What kind of gate valve should I choose for my application?

The LOCKER gate valve is an unidirectional type (the flow direction is indicated by the arrow on the side of the body) suited for use on general industrial applications, biogas, purification plants, sewage water treatment and drainage systems, but also on tankers for agriculture use or trucks for industrial use.

The LOCKER BiDi gate valve is a bidirectional (the seal is guaranteed in both directions) type suited for use on general industrial applications, biogas, purification plants, sewage water treatment and drainage systems, but also on tankers for agriculture use or trucks for industrial use.

The single-cast body of the gate valve and special sealing system of the gate valve guarantee perfect sealing under pressure up to 10 bar for LOCKER e LOCKER BiDi Ø 100 - Ø 150 - Ø 200, 8 bar for LOCKER e LOCKER BiDi Ø 250 and 7 bar for LOCKER e LOCKER BiDi Ø 300. The models Ø 100 - Ø 150 - Ø 200 - Ø 250 and Ø 300 are built according the correct manufacturing procedures, which guarantee safety of use in compliance with directive 97/23/EC (PED), article 3, paragraph 3 for maximum pressures of 10 bar for Group 2 fluids.