Vent gas specification and control
Reference data
Maximum concentration of oil
0.1 parts per million
Recommended time for rotational speed to
reach 50%
> 15 seconds
Maximum allowed rate of pressure rise
Refer to
Maximum allowable vent gas supply pressure 1 bar (gauge); 14.5 psig, 2 x 10
5
Pa
Figure 13 Max allowed rate of pressure rise during venting: pressure against time (pump
initially at full speed)
Materials exposed to gases pumped
The following materials and component types are exposed to the gases pumped:
•
aluminium alloys
•
stainless steels
•
fluoroelastomer and nitrile O-rings
•
hydrocarbon lubricant
•
felt
•
rare earth magnets
•
silicon nitride
•
carbon fibre reinforced epoxy resin
•
fire retardant polypropylene
•
polyamide
•
PVC
Electrical connections
Table 19 Electrical connections
Parameter
Value
Electrical supply (refer to
Figure 1
on page 10, item
10
)
Inlet plug type
IEC60320
D395-94-880A - Technical Reference
Page 40
