Speck pumpen VH 110, Operating Instructions Manual

Page: 41 / 63

Operating Instructions
10/2010 1096.0799 | VU / VH Series 41
9.2.6 Operating connections
Type Process water connection Suction connection Pressure connection
Size Shape Size Shape Size Shape
VU 20/40
VH 20/40/60
G 3/8“ Thread G 1 1/4“ Thread G 1 1/4“ Thread
VU 80/140
VH
110/140/180
G ½“ Thread DN 40 Flange DN 40 Flange
VU 220 G ½“ Thread DN 50 Flange DN 50 Flange
VU 300
VH
300/350/400
G 1“ Thread DN 50 Flange DN 50 Flange
VU 351/451 G ¾“ Thread DN 65 Flange DN 65 Flange
VU 450
VH 500/600
G 1“ Thread DN 65 Flange DN 65 Flange
VU 500/600 G 1“ Thread DN 100 Flange DN 100 Flange
VU 800/1200/
1600
VH 800/1200/
1600
G 2“ Thread DN 100 Flange DN 100 Flange
Tab. 24 Operating connections
9.2.7 Mechanical seal
All pumps offer mechanical seals with integrated flush.
Typical features are

single seal

unbalanced

conical spring

dependent on the direction of rotation
Special versions

double-acting mechanical seals

cartridge units

packing glands
9.2.8 Ambient conditions

Operation under other ambient conditions has to be agreed
with the manufacturer.
Temperature
[°C]
Relative humidity [%]
Set-up
altitude
above sea
level [m]
long-term short-term
+5 to +40 ≤ 85 ≤ 100 ≤ 1000
Tab. 25 Ambient conditions
9.2.9 Clearances for heat dissipation
Type Min. clearance fan hood –
adjacent surface [mm]
VU 20/40
VH 20/40/80 35
VU
80/140/220/300/351/
450/451/500/600/800
VH 110/140/180/300
350/400/500/600 55
VU 1200
VH 800/1200 75
VU/VH 1600 100
Tab. 26 Clearances for heat dissipation