LEYBOLD RUVAC WH 2500, Инструкция по установке и эксплуатации

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Installation
35
130001398_002_C0 - 09/2016 - © Leybold
3.1.2 Outer Forces on Evacuated Pumps
Due to the large flange area of the RUVAC WH pumps significant forces
affect the pipework that is connected to the pump, shifting it if not properly
affixed.
In the vertical pumping direction this is typically not a problem if the pump’s
feet are properly affixed to a stable surface.
In the horizontal pumping direction the resulting force would overload the
rubber elements of the pump feet if not compensated by the pipework thus
displacing the pump. This would highly stress the piping.
In order to prevent any shifting, our specially manufactured pump feet must
be used, see Section 1.5 Accessories.
Always make sure that the pump is connected using compensation elements
so that the piping is not stressed too much.
Fig. 3.3 Outer forces on evacuated pumps for horizontal flow
D
Compensation element at the outlet
(expanded)
Compensation element at the intake
(compressed)
Fixed position
Fixed position
Deformation of rubber elements
D < 5 mm !
Resulting force F
Resulting force F when
vacuum is present
WH 4400 WH 7000
3 kN 6 KN