Vogelsang VX Series, Руководство пользователя

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Rotary lobe pump
Operating instructions
VX100Q, VX136Q..QD..QDM2, VX186Q..QD..QDM2, VX230Q..QD
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7.2.3 Pressure valve

Fig.
“Pump with pressure valve, without buffer fluid tank”
Dismount pressure valve for inspection of buffer fluid and for topping up small quantities in the buffer
chamber.
Skin and eye irritation caused by auxiliary materials, operating materials and medium
•
To protect against fluids spraying out, carefully and slowly open the buffer chamber. Cover the valves
or screws to be removed with a cloth or similar item where appropriate.
Air pocket
Only enough buffer fluid should be added that a pocket of air remains, see C

Fig. "Pump with pressure
valve, without buffer fluid tank". The pocket of air prevents buffer chamber medium from escaping from the
pressure valve due to thermal expansion.
5 Pressure valve
C
Air buffer
D Oil level
Fig. 18 : Pump with pressure valve, without buffer fluid tank
7.2.4 Plug
(for special designs only, for example submersible pumps)
Dismount the upper plug (instead of pressure valve) to top up small quantities in the buffer chamber. Buffer
fluid level

Fig. "Pump with pressure valve, without buffer fluid tank".
Skin and eye irritation caused by auxiliary materials, operating materials and medium
•
To protect against fluids spraying out, carefully and slowly open the buffer chamber. Cover the valves
or screws to be removed with a cloth or similar item where appropriate.
Air pocket
Only enough buffer fluid should be added that a pocket of air remains, see C

Fig. "Pump with pressure
valve, without buffer fluid tank". The pocket of air prevents buffer chamber medium from building up an
acceptably high pressure via thermal expansion.