Driven by Motors, Turbines, Engines; Also Includin
Direction of Rotation
When Viewed From The Drive End, The Pump Rotates C
Inlet and Outlet Mode
Side - Inlet and Side - Outlet
Impeller Type
Closed
Shaft Seal Type
Mechanical Seal or Packing Seal
Flange Standard
GB/T 9124.1 Steel Pipe Flanges Part 1: Pn Series a
Transport Package
Wooden Case
Specification
2821mmX1340mmX750mm
Trademark
EAST
Production Capacity
100
Product Description
Product Overview
The DFMSD series split - case multistage centrifugal pumps are developed by our company. They incorporate advanced technologies of similar foreign products and combine with our company's years of design experience. These are horizontal multistage centrifugal pumps with axial split - case type and supported at both - end centerlines. They feature an advanced and reasonable structure, a wide high - efficiency range, high efficiency, good cavitation performance, low vibration, stable and reliable operation, and long service life.
The DFMSD medium - and low - pressure pumps comply with the GB/T 5657Technical Conditions for Centrifugal Pumps (III)standard.
The DFMSD medium - high - pressure pumps, high - temperature pumps, abrasion - and corrosion - resistant pumps, and seawater pumps comply with the GB/T 5656Technical Conditions for Centrifugal Pumps (II)standard; they can also meet the GB/T 16907 standard and API 610 standard according to customer needs.
Application Fields
Municipal/industrial water supply or water diversion projects
Mine drainage
Descaling
Reverse osmosis water supply
Water injection on offshore platforms
Water supply for coal chemical washing towers
Coal mining by hydraulic methods
Feedwater for medium - and medium - high - pressure boilers
Pipeline crude oil transportation
Petroleum and chemical processes
Operating Conditions
Flow rate: ≤ 3500 m³/h.
Working pressure: ≤ 15 MPa [1].
Medium temperature: -20°C to +160°C [2].
Operating speed: 1480 r/min, 2960 r/min.
Driving modes: Motor - driven, turbine - driven, engine - driven, as well as variable - frequency, hydraulic coupling, and gearbox - driven.
Direction of rotation: When viewed from the drive end, the pump rotates counterclockwise; it can also be designed according to user requirements.
Inlet and outlet mode: Side - inlet and side - outlet.
Impeller type: Closed.
Shaft seal type: Mechanical seal or packing seal.
Flange standard: GB/T 9124.1Steel Pipe Flanges Part 1: PN Seriesis the standard flange, and other standards can also be implemented.
Note: [1] For DFMSD medium - and low - pressure pumps and high - temperature pumps, the suction port pressure + maximum pump pressure ≤ 7 MPa. For DFMSD medium - high - pressure pumps, abrasion - and corrosion - resistant pumps, and seawater pumps, the suction port pressure + maximum pump pressure ≤ 15 MPa. [2] For DFMSD medium - and low - pressure pumps, the temperature ≤ 105°C; when the medium temperature ≥ 80°C, external cooling water must be connected for cooling. For DFMSD high - temperature pumps, the temperature ≤ 160°C. External cooling water must be connected for cooling, and mechanical seal cooling flushing should be adopted.
Product Structural Features
Impeller and Shaft Balance: Balanced according to ISO 1940 - 1 G2.5 grade, achieving smooth rotation with no vibration.
Heavy - Duty Bearings: Can be equipped with self - aligning radial spherical bearings and axial thrust bearings. The heavy - duty radial spherical bearings can compensate for radial movement, and the thrust bearings can withstand axial force.
Bearing Isolator: Prevents external contaminants from entering, significantly reducing the risk of bearing damage.
Flange Connection: Meets GB/T 9124.1 standard for PN series flanges for suction and discharge. Other standard flanges can also be used.
Single - Stage Cover Bolt Structure: The bolt layout is designed to minimize bending stress. High - strength bolts with fine - pitch threads are used. The pump cover and end cover can be easily removed.
Equal - Load Design of Diaphragm Gasket: Balances radial force, reduces vibration, and lowers pump noise.
Transition Flow Passage: Optimizes flow, minimizing friction loss and maximizing efficiency.
Split - Middle Throttle Bush: Can withstand large axial and radial forces, simplifying rotor assembly and disassembly.
Impeller Back - Pressure Device: Ensures balanced axial force. Different impeller vane numbers can balance radial force, reducing axial movement.
Integrated Pressure - Equalizing Pipe: The balanced pressure - equalizing pipe makes the packing seal only bear inlet pressure.
Sealing Gland: Meets GB/T 14624.9 standard for gland studs and nuts, ensuring reliable connection and easy disassembly and assembly.
){kind=link}