Vogelsang VX Series, Руководство пользователя

Страница: 57 / 202

Rotary lobe pump
Operating instructions
VX100Q, VX136Q..QD..QDM2, VX186Q..QD..QDM2, VX230Q..QD
13/68
Danger from rotating shaft end
In order to prevent the hands or the work clothing from getting caught on the rotating shaft end (without
cardan shaft), the pump may only be operated with a suitable PTO shaft guard. Please contact us

.
Operating torque limitation for PTO drive
In order to prevent overloading the pump drive shaft, the operating torque must be limited:
With cardan shafts with a
profile Operating torque limited to
1 3/8", 6-part 1.600 Nm
1 3/4", 6-part 3.200 Nm
1 3/4", 20-part 3.200 Nm
No overpressure protection via operating torque limitation
This operating torque limitation is not a safety device to prevent pump overpressure. (see 'Theoretical
operating torque’ in the

chapter
“Technical data".
4.3 Marathon pumps
The marathon pump (VX136QDM2, VX186QDM2) is a 2-stage pump with defined suction side and
discharge side. Therefore, the direction of flow is not variable.
A
Suction side 1st stage
B Discharge side 2nd stage
Fig. 4 : Flow direction with Marathon pumps