DS Multi-Stage Split Case Pump
DS series offers an extended high-efficiency operating range, ideal for long-distance water transport and power plant settings.
| Outlet diameter | 80 ~ 1600 mm |
| Capacity | 100 ~ 6000 m³/h |
| Head | 100 ~ 1100 m |
| Operating temperature | -20 ~ 200 ℃ |
| Working pressure | 20 MPa |
The DS series employs CFD and FEA simulation to deliver energy-efficient performance across water conservancy, petrochemical, power generation, and municipal applications. Key features include an extended high-efficiency operating range, reduced NPSHr, enhanced operational stability, simplified maintenance protocols, and advanced shaft sealing technology.
Key features:
- Optimized self-balancing structure: The outlets of each volute casing are arranged in 180° staggered symmetry to balance radial forces; the impellers at all stages are axially symmetrically or back-to-back arranged to balance axial forces; the main shaft is reinforced through computer-optimized design and experimental verification; the keys of each impeller are symmetrically positioned at 180° to balance partial radial deflection; the rotor assembly undergoes dynamic balancing testing to eliminate unbalanced mass; the transmission components utilize flexible pin-type couplings to balance radial forces generated during power transmission.
- Enhanced product efficiency: Specialized sealing design between suction chamber and discharge chamber minimizes volumetric loss due to interstage leakage, improving operating efficiency while extending maintenance intervals.
- Adaptable lubrication: Specialized bearing cooling/lubrication systems accommodate diverse operational environments.
- Compact design: Comprising casing, impeller, shaft, bearing house and couplings etc, the pump achieves optimized structure by reducing unnecessary balancing components to minimize footprint
- Seal reliability: The shaft seal is placed in the low pressure zone of the pump casing to extend service life and reduce mechanical seal failure risk.
- Rapid maintenance: Side-mounted pump inlet and outlet allow pump cover removal for servicing without detaching motors or pipelines.
Construction drawing
A. DS desalinate pump is designed for pressuring and transporting the seawater
Hydraulic model is specially designed for seawater desalination pump with smoothing performance.
High performance range suits for pump's service condition; SDS type desalination pump is designing for seawater pressure and delivering; To adapt the best material to press and deliver seawater which guarantee corrosion resistance and pressure resistance; Special designing of bearing lubrication and cooling to suit for different application; The sealing structure between suction chamber and discharge chamber which reduce leakage, reduce maintenance time and improve delivery efficiency; Low pressure zone is near mechanical seal with flushing pipe water to guarantee good performance and better service life of mechanical seal.
B. DS desalinate pump of compact structure
The main components are casing, impeller, shaft, shaft sleeve， wear ring， bearing seat， coupling， and etc. It has compact and optimized structure, occupy less space by reducing the un-
necessary balance device.
C. DS desalinate pump is easy to maintain
The casing is consisting of upper casing and lower casing. The inlet and outlet are located on each sides of the casing. Ax-is vertical with the shaft. It is very easy maintenance for the SDS type pump because of the structure. It only needs to open upper casing instead of disassembling motor and pipe.
D. DS desalinate pump adopt the self-balance mechanical structure
The delivery chambers are uniform distribution to balance the radial force. Impellers are symmetrically or back-to-back arranged to balance axial thrust. Thickening the shaft by optimize calculating machine and experimental verification. The key of impellers are symmetrically arranged to balance part of the radial deflection. Strictly dynamic balance is adopted on rotor parts to remove the unbalanced mass and adopted elastic couplings to balance the radial force.
Advisory Message
To: Hunan M&W Pump Co., Ltd
Email: export@mwpump.com
Baoshui Road & Baishi Road, Jiuhua Industrial Zone,
Xiangtan Hunan P.R.C
Tel: +86-731-55599916
WhatsApp: +86 15116202855
Hunan M&W Pump Co., Ltd
