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Technical data
B722-40-880 Issue F
2Technical data
2.1 General
2.2 Pumping media
Table 2 - General data
General items Reference data
Performance Refer to Table 3
Dimensions Refer to Figure 1 and 2
Maximum inlet flange temperature
ISO63 / ISO100 / NW40 70 °C with cooling water
DN63CF (EXT75DX) / DN100CF (EXT255DX) 100 °C bakeout, with cooling water
Maximum permitted external magnetic field
EXT255DX 3.5 mT horizontal field, 7 mT vertical field
EXT75DX 5 mT
Pollution degree EN61010, Pollution Degree 2
Equipment type Fixed equipment, for indoor use only
Enclosure protection (installed)
EXT255DX and 255iDX IP50
EXT75DX and 75iDX/NW25 IP50
EXT75iDX/NW16 IP50
Vent dangerous gases and gas mixtures safely. Do not expose people to these gases. If pumping
hazardous gases or vapours, observe the safety recommendations of the supplier of the gas/
vapour.
Do not use the DX pump to pump pyrophoric or explosive gas mixtures, as it is not suitable for this
purpose. The pump and its connections are not designed to contain an explosion.
In the interstage versions of the DX pumps, gas pumped through the interstage port will mix with
gas pumped through the pump inlet. Ensure that the gases will not react or combine to form
dangerous gases and substances.
Do not expose any part of the human body to vacuum.
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