Application
An M1 open hopper progressive cavity pump features a rectangular hopper in order to pump the medium. It is suitable for conveyance of thick slurry at a maximum of 18% of solid content, making it suitable for use in the following:
Starch industry: the transmission of starch slurry, potato dregs, potato pulp, wheat gluten, paste
Environmental protection industry: the conveyance of sanitary sewage, industrial wastewater, dilute sludge, activated sludge, dewatered sludge, flocculants, additives
Pharmaceutical industry: the transmission of extract liquor and concentrated liquor in Chinese herbology, unguent, herb residue, dewatered sludge from pharmaceutical factories
Specification of VD-P04M1 Open hopper progressive cavity pump
Max working pressure 12 bar
Model
Flow range m3/h
Rotate speed range rpm
Motor power Kw
VD040-005P04M1
1~7
200~550
2.2~5.5
VD050-011P04M1
2~14
180~500
2.2~7.5
VD060-019P04M1
5~22
160~450
4~11
VD070-029P04M1
8~30
150~420
5.5~15
VD090-053P04M1
10~45
70~350
7.5~22
VD100-080P04M1
15~60
70~300
15~37
VD120-120P04M1
20~80
70~250
18.5~45
VD150-230P04M1
30~120
60~200
22~75
VD170-300P04M1
40~150
50~150
30~90
Specification of VD-P06M1 Open hopper progressive cavity pump
Max working pressure 12 bar
Model
Flow range m3/h
Rotate speed range rpm
Motor power Kw
VD040-005P06M1
1~6
200~550
3~7.5
VD050-011P06M1
2~12
180~500
4~11
VD060-019P06M1
5~20
160~450
5.5~15
VD070-029P06M1
8~25
150~420
7.5~18.5
VD090-053P06M1
10~40
70~350
11~30
VD100-080P06M1
15~50
70~300
15~45
VD120-120P06M1
20~70
70~250
18.5~55
VD150-230P06M1
30~110
60~200
30~90
VD170-300P06M1
40~130
50~150
45~110
Specification of VD-P08M1 Open hopper progressive cavity pump
Max working pressure 24 bar
Model
Flow range m3/h
Rotate speed range rpm
Motor power Kw
VD040-005P08M1
1~5
200~550
4~11
VD050-011P08M1
2~10
180~500
5.5~15
VD060-019P08M1
5~18
160~450
7.5~18.5
VD070-029P08M1
8~23
150~420
11~30
VD090-053P08M1
5~35
70~350
15~45
VD100-080P08M1
8~45
70~300
18.5~55
VD120-120P08M1
10~33
70~250
30~90
VD150-230P08M1
15~100
60~200
45~110
Working principle of the progressive cavity pump
A progressive cavity pump is a displacement pump that, with an interference fit of the rotor in an eccentric motion and a fixed stator, will form a seal cage within the pump, moving material from the inlet to the outlet, thus completing the conveyance of the medium within the seal cage.
Structure of progressive cavity pump
The stator and the rotor
Metal flexible universal joint
Spring flexible universal joint
Spherical teeth universal joint
The rotor
The rotor shape can be designed as per customer requirements. For a metal rotor, after surface hardening or a vacuum heat treatment, the hardness can reach up to HRC65-67.
The stator
Materials: NBR, NBRH, HNBR, EPDM and FKM- all of which meet various working conditions
Universal joint
Alternative universal joints include a ball-and trunion joint, flexible universal joint, double offset universal joint, lardan universal joint and other joints.
Shaft seal
The packing seal and mechanical seal can be selected based on working conditions. The cooling system and flushing system can also be selected for the best possible way to prolong the shaft service life.
Driving system
The alternative driving system includes several high quality driving systems, such as SEW, NORD, ABB and others.
Weifang Subtor as a German Subtor invested company in China, offers wide range of progressive cavity pumps and components. The M1 class open hopper progressive cavity pump has typical applications as food pumping, water pumping, slurry pumping, sludge pumping, sewage pumping, wastewater pumping, viscous fluid pumping, etc. A progressive cavity pump is a type of positive displacement pump, also known as eccentric screw pump. With German supported technology and rich marketing resources, Subtor provides quality PCP pumps with custom solutions for global clients.
