page 41 of 88
• Reduce the transmission of vibration. Pre-
vent mechanical load due to rigid pipelines.
Insert elastic hoses or flexible elements
as couplings between the pump and rigid
pipes.
Note
: Flexible elements will compress or
flatten when evacuated if not designed for
use under vacuum.
• Hose connections at the pump inlet must al-
ways be gas tight and secured against loos-
ening, for example, with a hose clamp.
Secure hose connections at the pump ap-
propriately, e.g., with hose clamps, to protect
against accidental detachment.
NOTICE
Use connecting hoses with large diameter and
keep them as short as possible to avoid flow
losses. Locate the pump as closely as possi-
ble to the application.
NOTICE
✘
✘
✔
✔
+
Particles and dust must not be aspirated. If necessary,
you must install appropriate filters. You must ensure
their suitability concerning gas flow, chemical resis
-
tance and resistance to clogging prior to use.
• A power failure may cause accidental ventilation of the
pump. If this constitutes a potential source of danger,
take appropriate safety measures.
When assembling, ensure
vacuum-tightness
. After as-
sembly, check the whole system for leaks.
Use a suitable valve to isolate the pump from the vacuum
application. This is to allow the pump to warm up before
pumping condensable vapors and to clean the pump after
use before it is switched off.
NOTICE
Summary of Contents for ME 2 NT
Page 34: ...page 34 of 88 ME 4 NT 1 5 3 2 6 4 ME 4 NT ME 4S NT 1 5 3 2 6 4 fig ME 4 NT ...
Page 35: ...page 35 of 88 ME 4R NT 9 5 3 6 12 8 10 11 10 4 13 MZ 2 NT MZ 2S NT fig MZ 2 NT 5 3 2 6 4 1 ...
Page 36: ...page 36 of 88 MZ 2D NT 5 3 2 6 4 ME 8 NT ME 8S NT 2 5 3 2 6 4 1 1 ...
Page 37: ...page 37 of 88 6 MD 4 NT MV 2 NT fig MD 4 NT 1 5 3 4 2 7 MV 2 NT 1 5 3 4 2 7 6 14 MD 4S NT ...
Page 38: ...page 38 of 88 MD 4CRL NT 5 3 2 7 6 14 4 1 ...
Page 61: ...page 61 of 88 4 5 6 Clean 20696877 20696860 20696861 20696862 20696868 20696859 20696870 ...
Page 62: ...page 62 of 88 7 8 9 1 2 ...
Page 64: ...page 64 of 88 12 13 14 Pay attention to washers Assemble same number and thick ness ...
Page 66: ...page 66 of 88 18 19 20 23120788 ME 8 NT MD 4 NT MV 2 NT ...
Page 67: ...page 67 of 88 21 22 23 ...
Page 70: ...page 70 of 88 1 20 17 2 3 Checking diaphragms and valves MZ 2D NT 5 4x 17 mm 20 mm ...
Page 74: ...page 74 of 88 10 size 2 1x Replacing the valves and assembling the pump heads MZ 2D NT 11 12 ...
Page 75: ...page 75 of 88 13 14 15 ...