WQAS/WQBS submersible sewage grinder pumps are designed with a grinder system which grinders solids into small pieces so that they can be led away through pipes of a relatively small diameter.
Application and Installation
1.Pumps are designed for domestic/commercial/industrial use.Â
2.waste water with discharge from water closets.
3.Sewage from restaurants, hotels,camping sites,etc. The compact design makes the pump suitable for both temporary and permanent installation, the pump can be installed on an auto-coupling system or stand freely on the bottom of the pit.
4.WQAS/WQBS impeller is equipped with an open impeller.
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Operating Limits
1. Trans medium's PH: 6-8.5
2. Fluid temperature limit: <40 °C
3. Max ambient temperature: <40 °C
4. Operating depth: <5m
5.  Pump working position: More than 0.5m over the bottom, should not be inserted into sludge.
Materials
Motor housing:  Cast iron
Impeller: Cast iron
Motor wire: CopperÂ
Mechanical seal: Alloy double side
Shaft:Â SS420
Cutter: 440 C
Bearing:Â NSK
Motor
1. 2-pole induction motor
2.1Â phase,50hz/60hz
3. Insulation Class: BÂ
4. Protection: IP68
Model Instruction
WQAS(D)7-12-0.9
0.9: Rate power(kw)
12: Rated head(m)
7: Rated flow(m3/h)
WQAS/WQBS: Model code, and no "D" means three-phase
Technical Data
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 Model | Voltage (v) | Power (kw) | Flow (m3/h) | Head (m) | Outlet Diameter (mm) |
WQASD7-12-0.9 | 220 | 0.9 | 7 | 12 | 40 |
WQASD7-16-1.2 | 1.2 | Â | 16 | ||
WQAS7-12-0.9 | 380 | 0.9 | Â | 12 | |
WQAS7-16-1.2 | 1.2 | Â | 16 | ||
WQAS7-21-1.5 | 1.5 | Â | 21 | ||
WQAS7-26-2.6 | 2.6 | Â | 26 | ||
WQ8-31-3.1 | 3.1 | 8 | 31 | ||
WQ10-38-4 | 4 | 10 | 38 | ||
WQBS7-15-1.1 | 1.1 | 7 | 15 | 50 | |
WQBS15-14-1.5 | 1.5 | 15 | 14 | ||
WQBS15-20-2.2 | 2.2 | 15 | 20 | ||
WQBS25-10-2.2 | 2.2 | 25 | 10 | 65 | |
WQBS15-24-3 | 3 | 15 | 24 | 50 | |
WQBS25-15-3 | 3 | 25 | 15 | 65 | |
WQBS15-30-4 | 4 | 15 | 30 | 50 | |
WQBS30-22-4 | 4 | 30 | 22 | 80 | |
WQBS30-28-5.5 | 5.5 | 30 | 28 | ||
WQBS50-15-5.5 | 5.5 | 50 | 15 | 100 | |
WQBS70-18-7.5 | 7.5 | 70 | 18 | 150 |
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Voltage 220V~380V fluctuation for 10% more

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 WQAS/WQBS Series Sewage Grinder Submersible PumpÂ
 WQAS/WQBS submersible sewage grinder pumps are designed with a grinder system which grinders solids into small pieces so that they can be led away through pipes of a relatively small diameter.
Application and Installation
1.Pumps are designed for domestic/commercial/industrial use.Â
2.waste water with discharge from water closets.
3.Sewage from restaurants, hotels,camping sites,etc. The compact design makes the pump suitable for both temporary and permanent installation, the pump can be installed on an auto-coupling system or stand freely on the bottom of the pit.
4.WQAS/WQBS impeller is equipped with an open impeller.
Â
Operating Limits
1. Trans medium's PH: 6-8.5
2. Fluid temperature limit: <40 °C
3. Max ambient temperature: <40 °C
4. Operating depth: <5m
5.  Pump working position: More than 0.5m over the bottom, should not be inserted into sludge.
Materials
Motor housing:  Cast iron
Impeller: Cast iron
Motor wire: CopperÂ
Mechanical seal: Alloy double side
Shaft:Â SS420
Cutter: 440 C
Bearing:Â NSK
Motor
1. 2-pole induction motor
2.1Â phase,50hz/60hz
3. Insulation Class: BÂ
4. Protection: IP68
Model Instruction
WQAS(D)7-12-0.9
0.9: Rate power(kw)
12: Rated head(m)
7: Rated flow(m3/h)
WQAS/WQBS: Model code, and no "D" means three-phase
Technical Data
Â
 Model | Voltage (v) | Power (kw) | Flow (m3/h) | Head (m) | Outlet Diameter (mm) |
WQASD7-12-0.9 | 220 | 0.9 | 7 | 12 | 40 |
WQASD7-16-1.2 | 1.2 | Â | 16 | ||
WQAS7-12-0.9 | 380 | 0.9 | Â | 12 | |
WQAS7-16-1.2 | 1.2 | Â | 16 | ||
WQAS7-21-1.5 | 1.5 | Â | 21 | ||
WQAS7-26-2.6 | 2.6 | Â | 26 | ||
WQ8-31-3.1 | 3.1 | 8 | 31 | ||
WQ10-38-4 | 4 | 10 | 38 | ||
WQBS7-15-1.1 | 1.1 | 7 | 15 | 50 | |
WQBS15-14-1.5 | 1.5 | 15 | 14 | ||
WQBS15-20-2.2 | 2.2 | 15 | 20 | ||
WQBS25-10-2.2 | 2.2 | 25 | 10 | 65 | |
WQBS15-24-3 | 3 | 15 | 24 | 50 | |
WQBS25-15-3 | 3 | 25 | 15 | 65 | |
WQBS15-30-4 | 4 | 15 | 30 | 50 | |
WQBS30-22-4 | 4 | 30 | 22 | 80 | |
WQBS30-28-5.5 | 5.5 | 30 | 28 | ||
WQBS50-15-5.5 | 5.5 | 50 | 15 | 100 | |
WQBS70-18-7.5 | 7.5 | 70 | 18 | 150 |
Â
Voltage 220V~380V fluctuation for 10% more

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Ceramic Valves are widely used in petroleum machinery, a valve including plunger with connecting ends and ceramic cylinders outside. The core of the plunger body is made of metal material, and the outer layer is matched with ceramic valve sleeve. The ceramic material is coated outside the valve core body made of metal, its wear resistance can exceed 5-10 times a metal plunger, and corrosion resistance of ceramic can solve the corrosion problem of the plunger, greatly prolong the service life of the plunger, which ensure the normal operation of all ceramic valves in any bad working environment.
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