VACUUBRAND RZ 9 - Manual (Page 17)

page 17 of 49
Technical data
General technical data valid for all pumps
Maximum permissible inlet pressure
(absolute)
psi
(bar)
16
(1.1)
Maximum permissible outlet pressure
(absolute)
psi
(bar)
16
(1.1)
Maximum pressure difference between
inlet and outlet
psi
(bar)
16
(1.1)
Maximum permissible pressure (abso-
lute) at gas ballast valve
psi
(bar)
17.5
(1.2)
Permissible ambient temperature
storage / operation
°F
(°C)
14 to 140 / 54 to 104
(-10 to +60 / +12 to +40)
Permissible relative atmospheric mois-
ture during operation (no condensation)
% 30 to 85
Maximum permissible installation altitude
above mean sea level
ft
(m)
6500
(2000)
No-load speed 50/60 Hz rpm 1500 / 1800
Motor protection
single-phase motor
three-phase motor
self-hold thermal cutout,
manual reset
circuit-breaker isolating all
poles in case of overload
Degree of protection IEC 529 IP 40
Water vapor tolerance
Torr
(mbar)
30
(40)
Recommended oil VACUUBRAND B-oil
Gas inlet temperatures
Operating condition Inlet pressure
Permitted range of gas
temperatures at inlet
Continuous operation
> 75 Torr (100 mbar)
(high gas load)
➨
50 °F to 104 °F
(+10°C to +40°C)
Continuous operation
< 75 Torr (100 mbar)
(low gas load)
➨
32 °F to 140 °F
(0°C to +60°C)
Short-time
(< 5 minutes)
< 75 Torr (100 mbar)
(low gas load)
➨
14 °F to 176 °F
(-10°C to +80°C)