D-type horizontal multistage centrifugal clean water pump High-head
industrial water supply pump
D-type pump Horizontal Multi-Stage Centrifugal Pump introduce:
The D-type horizontal multistage centrifugal pump is a specialized
solution designed specifically for high-pressure water supply and
mining drainage. It is constructed from high-strength ductile
iron/stainless steel, and features precision-cast impellers and
mechanical seals to ensure corrosion resistance, minimal leakage,
and long service life. With a flow range covering 10–500 m³/h and a
maximum head of up to 1500 meters, it is suitable for demanding
applications such as mine drainage, municipal water supply,
industrial circulation systems, and boiler feedwater in power
plants.
The D-type multistage centrifugal pump is a horizontal
single-suction multistage segmented centrifugal pump. It achieves
high-pressure delivery by incrementally pressurizing the liquid
through a series design of multiple impellers and diffusers. Its
core principle is based on the action of centrifugal force, with
the specific process as follows:
structural composition:
Impeller: Multiple stages in series, each stage's impeller
connected via a shaft, generating centrifugal force when rotating.
Diffuser: Located at the outlet of the impeller, used to guide the
liquid flow to the next impeller and recover part of the kinetic
energy, converting it into pressure energy.
Inlet section, middle section, outlet section: Segmented structure
for easy maintenance and adjustment of the number of stages.
Shaft Seal: Mechanical seal or soft packing seal to prevent
leakage.
Balancing Device: Balance disc or self-balancing structure (in some
models) to offset axial forces.
The working principle of the D-type pump mainly includes four
stages: the startup stage, the operating stage, the pressurization
stage, and the output stage.
Startup Stage: It is necessary to ensure that the pump casing and
suction pipe are fully filled with water. Then the motor is
started, causing the pump shaft to rotate, driving the impeller and
water into high-speed rotational motion.
Operating Stage: When the impeller generates strong centrifugal
force inside the pump chamber, the liquid inside the impeller is
thrown toward the periphery of the impeller along the flow passages
between the blades under the action of centrifugal force. During
this process, both the pressure and velocity of the liquid
increase.
Pressurization Stage: The expelled liquid is then directed into the
next impeller, where it undergoes progressive pressurization,
causing the liquid pressure to increase continuously.
Output Stage: Finally, after undergoing multistage centrifugal
action, the liquid’s pressure and velocity are significantly
increased. It is then directed toward the outlet and ultimately
discharged from the pump’s discharge port.
D-type pump Horizontal Multi-Stage Centrifugal Pump Performance
Parameters (Customizable according to customer requirements):
Flow Range: 10 ~ 500 m³/h
Head Range: 100 ~ 1500 meters
Power Range: 15 kW ~ 450 kW
Number of Stages: 2 ~ 10 stages (customizable according to
operating conditions)
Inlet Diameter: 50 mm ~ 300 mm
Discharge Pressure: up to 15 MPa
Protection Class: IP54 / IP55
Insulation Class: Class F
D-type pump Horizontal Multi-Stage Centrifugal Pump Core Advantages:
High Efficiency and Energy Saving
Adopts advanced hydraulic design, offering high efficiency and low
energy consumption, significantly reducing operating costs.
Compact Structure and Convenient Maintenance
Well-integrated structure with small footprint, easy maintenance,
and support for quick replacement of wearing parts, saving
maintenance time.
High-Quality Materials with Corrosion and Wear Resistance
Key components are made from high-strength cast iron, stainless
steel, or wear-resistant alloys, capable of adapting to complex
water qualities and harsh working conditions.
Stable Operation, Safe and Reliable
High dynamic balance accuracy, minimal vibration, low noise,
ensuring trouble-free continuous operation over long periods.
Wide Range of Applications
Suitable for transporting clean water or liquids with physical and
chemical properties similar to clean water, with temperature ≤
80°C; especially suitable for applications requiring high discharge
pressure.
D-type pump Horizontal Multi-Stage Centrifugal Pump parameters:
(It is regular submersible pump type in Shenlong pump factory, high
temperature and 380v/440v/480v/600v/660v, etc. Please kindly choose
submersible pump type you are interested.)
| Stages | Flow | Head | Speed | Power | Outlet diameter |
| m3/h | l/s | m | r/min | kw | mm |
| 12 | 3.7 6.3 7.5 | 1.03 1.75 2.08 | 306 300 294 | 2950 | 15 | 40 |
| 10 | 7.5 12.5 15 | 2.08 3.47 4.17 | 282 250 230 | 2950 | 18.5 | 40 |
| 5 | 15 25 30 | 4.17 6.94 8.33 | 170 150 138 | 2950 | 22 | 65 |
| 9 | 15 25 28 | 4.16 6.94 7.78 | 463.5 450 432 | 2950 | 75 | 65 |
| 4 | 30 46 55 | 8.33 12.8 15.3 | 222 200 184 | 2950 | 45 | 80 |
| 11 | 60 46 55 | 8.33 12.8 15.3 | 610.5 550 506 | 2950 | 132 | 80 |
| 5 | 55 85 100 | 15.3 23.6 27.8 | 255 225 195 | 2950 | 90 | 100 |
| 9 | 55 85 100 | 15.3 23.6 27.8 | 459 405 351 | 2950 | 160 | 100 |
| 5 | 55 85 100 | 15.3 23.6 27.8 | 370 335 305 | 2950 | 132 | 150 |
| 4 | 100 155 185 | 27.8 43 51.4 | 304 268 236 | 2950 | 185 | 150 |
| 6 | 185 280 335 | 51.4 77.8 93.1 | 282 258 228 | 1480 | 315 | 200 |
| 7 | 185 280 335 | 51.4 77.8 93.1 | 408 390 372 | 1480 | 500 | 200 |
| 3 | 280 360 410 | 77.8 100 113.8 | 304.2 285 270.9 | 1480 | 450 | 250 |
| 2 | 550 720 850 | 152.8 200 236.1 | 134.2 120 106.8 | 1480 | 355 | 300 |
Q:How to contact us?
A:We have a professional technical team that can recommend and
provide the most suitable fountain pump product solutions based on
your specific working conditions.
Our email is enquiry02@apkpump.com, our Whatsapp is +86
17537187726. Thank you for your inquiry!
