Double suction pump DFSS type
Operating conditions and range
| Pipeline pume 125mm impeller |
| Model |
DFSS |
| DN(flange) |
80~800mm |
| Capacity |
66~37000m³/h, with 2950RPM, 1450RPM, 980RPM |
| Head |
5~180m |
| Permitting working pressure |
2.5MPa |
| Medium Temperature |
Normal≤80°C, cooling structure<105°C, equal to or higher than 105°C take special orders. |
| Material |
Cast iron-HT200, HT250; SS304, SS316, SS316L, Duplex SS |
| Partical |
80mg/l |
| Motor |
380V, 415V, 660V; IP54, IP55; 50Hz, 60Hz |
| Shaft |
Cast steel, 2Cr13 |
| Casing and cover |
Cast iron, Nudular cast iron, Cast steel |
| Impeller |
Cast iron, Bronze, stainless steel |
| Mouth seal |
Cast iron, nudular cast iron, bronze, stianless steel. |
| Shaft seal |
Mechanical seal or packing seal |
| Bearing |
Closed grease lubricated roller bearing
and roll bearing |
| Flange standard |
ASME, DIN, GB |
| Seal by |
mechanical seal or gland packing |
| Quality control system |
ISO9001: 2000, ISO14001, OHSAS18001, ISO2548, GB/T3216,
GB/T5657, GB19762-2005 |
| Main Application |
The product are applied in power plants, water supply, municipal, construction, fire fighting, industrial and mining enterprises and other industries for the transportation of water, of similar physical and chemical properties of water and other media. |
Product overview
DFSS series double suction pump is horizontal single stage double suction pump, which adopts horizontal split. Structure, and gains "Utility model patent certificate " and " Certificate of Design Patent" authorized by Stage Intellectural Property Office, patent No. is ZL02265708.8 and ZL02316326.7. Meanwhile gain National Key New Products and the certificate of Shanghai Hi-tech achievement transformation authorized by National Science and Technology.
DFSS series pump has stable performance, high-efficiency, easy maintenance, long life and other charecteristics, and is very popular in market.
The design of product is according to the standard of GB/T5657.
Pump adopts linear design and reinforcing rib making the structure more reasonable, beauty outline and installation stable.
Short bearing distance enhances rigidity of shaft, insuring units operate stably, small libration, low noise.
Full closed shaft design, make there is no touch about shaft and medium, to insure shaft no rust, easy dismantle, long life.
Shaft body adopts middle open structure, open pump cover and shaft upper cover, could take out complete rotor, easy adjust and convenient to maintain.
There are two shaft seal structures of mechanical seal and packing seal, according to demand of user, we can adopt special seal mode, such as sand sealing , cut layered packing seal etc.
Pump body and cover both adopt resin sand molding, which make sure outline of casting and flow passage accuracy dimension, smooth surface, enhancing hydraulic efficiency.
Pumps select high efficiency hydraulic model and adopt CFD optimal design, enhancing the hydraulic efficiency and improving the performance of cavitation.
Adopt the finite element method for strength calculation, make the pump operate more reliable and durable, extending the life of pump.
Bearing has water cooling structure, can be worked at high temperature. Bearing can select Grease Lubrication of Dilugte oil lubrication.
Model defined
DF SS __1__ -- __2__ __3__ __4__ __5__ / __6___
Code of East
Double Suction pump
1. Inlet and outlet dia. (mm)
2. 1/10 rotate speed of impeller
3. Not marked: Basic impeller
N: modified impeller
4. Not marked: basic impeller
A: The first cutting wheel
B: The second cutting wheel
C: The third cutting wheel
5. Not marked: Standard clockwise
F: type counterclockwise
6. Pole numbers of the motor
| Pump Type |
Capacity |
Head |
Speed |
Power |
Efficiency |
NPSHR |
Total weight |
| m³/h |
m |
r/min |
kW |
% |
m |
kg |
| DFSS200-13/2 |
175 |
49 |
2960 |
45 |
80 |
3.2 |
170 |
| 290 |
42 |
87 |
5.0 |
| 355 |
36 |
83 |
6.7 |
Item of service
Technical training Equipment evaluation
Installation and debugging Troubleshoot
Maintenance Update and improvement
Commitment to the service
1. After signing the contract, send engineer for assisting installation and debugging.
2. One-year warranty. Provide technical support free all-life of the products.
3. Keep all-life contacting with clients, get feedback on use of the equipment and make the products quality continually perfected.
4. Hot-line of service is available in 24h, responded in 8h. 400 1666 099
Audited Supplier 
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