Specifications

vertical multistage centrifugal pump:
1.CE, GS, ISO9001:2000, CCC
2.More energy-saving,long durablity,

Structure

NO.	Description	Material
1	bracket	cast iron
2	pump base	stainless steel
3	inlet fluid director	stainless steel
4	seal gasket	Polytetrafluoroethylene
5	sleeve	stainless steel
6	impeller	stainless steel
7	bearing fluid director	stainless steel
8	bearing	hard alloy
9	fluid director	stainless steel
10	external encloser	stainless steel
11	round cover	stainless steel
12	outlet fluid director	stainless steel
13	mechanical seal	hard alloy fluorin rubber
14	dishing spring	stainless steel
15	motor bracket	cast iron
16	pump shaft	stainless steel
17	protection sheet	stainless steel
18	semi-coupling	cast steel
19	motor	standard vertical motor
20	adjusting screw	stainless steel
21	pipe plug	stainless steel
22	pull-rod	45# steel
23	pressure adjustor	stainless steel

Remarks
All performance curves are based on the measured values when a motor works under power of 380V, at a constant speed of 2900r/min.
The capability of flow and head conforms to ISO9906.
Measurement is done in 20 air-free water of which viscosity is 1mm2 /s.
The operation of pump shall refer to the performance range marked in thickened curve so as to avoid damages caused by over-load.

Minimum inlet pressure:
Figure NPSH curve+mininum safety margin 0.5m delivery head.

The performance of vertical multistage centrifugal pump:

 

QDL4-20	0.37KW
QDL4-30	0.37KW
QDL4-40	0.55KW
QDL5-50	0.55KW
QDL2-60	0.75KW
QDL2-70	0.75KW
QDL2-90	1.1KW
QDL2-110	1.1KW
QDL2-130	1.5KW
QDL2-150	1.5KW
QDL2-180	2.2KW
QDL2-220	2.2KW
QDL2-260	3.0KW