vacuubrand MD 4C NT + 2 AK, Instructions For Use Manual

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page 24 of 75
Technical data
General technical data valid for all pumps/pumping units
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 / 50 to 104
(-10 to +60 / +10 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
Device fuse slow blow fuse 6.3 A
Motor protection thermal cutout, manual reset
Degree of protection IEC 529 IP 40
Coolant connection
(waste vapor condenser, only ”EK”)
hose nozzle for tubing
I.D. 1/4” - 5/16”
(hose nozzle DN 6-8 mm)
Maximum permissible pressure of
coolant at waste vapor condenser (”EK”)
psi
(bar)
87 (absolute)
(6 (absolute))
Permissible range of coolant temperature
(waste vapor condenser, only ”EK”)
°F
(°C)
5 to 68
(-15 to +20)
Volume of catchpot (only ”AK” / ”EK”)
quarts
(ml)
0.52
(500)
A-weighted emission sound pressure
level* (uncertainty K
pA
: 3 dB(A))
dB(A) 45
* Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 at 230V/50Hz and ulti-
mate vacuum with exhaust tube at outlet.