Performance Range:
 
Max. head: 17.5 m
Max. flow: 90 m3/h
Power: 3.0 to 5.5hp
Operating Limits:
Max. liquid temperature: +50℃
Max. ambient temperature: +50℃
Liquid: for clean water
Max. Working pressure: 3 bar
Features:
Optimized working point in design with features of large flow and high efficiency.
Pump wet end made of high strength engineering plastic.
With wear-resisting mechanical seal system
Impeller for three phase motor fixed by key and nuts, no worry about the reverse direction rotation of motor
Motor stator processed by plastic packaging technology, moisture-proof, thermal conductivity, safety.
The motor shaft isolated from liquid, safety and reliable.
Motor: 
Asynchronous, two poles, IP 55 protection, Class F insulation, Continuous operation. Three phase  motor with thermal protection, #90 motor stator
Specification Data
Model
Qmax.
Hmax
Power (P1)
Amps
Fitting Size
l/min
m
kw
hp
220V/50Hz
380V/50Hz
2"
3"
WTB220
1100
11
2.2
3
10
-
73/75/76
88.9/90
WTB250
1210
11.5
2.5
3.5
13.7
-
WTB250T
1210
11.5
2.5
3.5
-
4.9
WTB300T
1300
13
3
4
-
5.2
WTB400T
1500
17.5
4
5.5
-
7