Vogelsang VX Series, Manual

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Rotary lobe pump
Operating instructions
VX100Q, VX136Q..QD..QDM2, VX186Q..QD..QDM2, VX230Q..QD
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7 Maintenance
Risk of injury from stumbling on slippery floor
•
Keep work station clean and clean up any auxiliary materials, operating materials and medium residue
that may be present, especially before maintenance and repair work on the pump or the pump unit.
•
Caution when temperatures are below freezing - keep workplace free of ice.
Skin and eye irritation caused by auxiliary materials, operating materials and medium
Protective clothing (protective goggles, protective gloves) must be worn during all work involving possible
contact with auxiliary materials, operating materials and medium. In certain situations these materials or the
medium can enter the buffer chamber or gearbox.
7.1 Buffer chamber
7.1.1 Buffer or quenching fluid - type
For optimum functioning of the mechanical seal, we recommend for standard pumps the oils listed in

Chapter
“Oils and lubricants".
Please check your order confirmation to see whether the buffer chamber of your pump is filled with a buffer
or quenching fluid differing from this chapter. In that case use only the oil specified on your order
confirmation.
Health hazard from contamination
Attention! In order to avoid contamination of the pump medium on pumps with a dry buffer chamber as a
sealing system,
no fluid may be added into the buffer chamber.
O-rings from the EPDM material
In order to prevent damage to the seal, no oils for the buffer chamber other than silicone oil may be used
with O-ring pumps made of EPDM.
7.1.2 Buffer or quenching fluid - quantity
Series Litres [l] per buffer
chamber
VX100 0.3*
VX136 1.5*
VX136VVA 1.2*
VX186 2.4*
VX186VVA 2*
VX230 5*
Buffer or quenching fluid table
*
Reference value, depends on the buffer chamber assembly