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Magflow^® TDP Horizontal Self-Balancing Multistage Pump

Magflow^® TDP Horizontal Self-Balancing Multistage Pump Specifications

Size	25-400 mm
Capacity	3.75-3600 m³/h
Head	50-2500 m
Particle Size	≤1.3mm
Tempreature	0-160℃
Power	5.5-4000 kW
Materials	Cast iron, Cast Steel, SS304, SS316L, Chrome Steel, Bronze, Duplex Stainless Steel, etc

Product Description

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Magflow^® TDP Self-Balancing Horizontal Multistage Pump Product Description

Magflow^®TDP Self-Balancing Horizontal Multistage Pump is a next-generation, high-performance centrifugal pump built on advanced design methodologies and deep in-house R&D expertise, utilizing energy-efficient hydraulic models for maximum operational efficiency.

Magflow^® TDP Self-Balancing Horizontal Multistage Pump model features high operational efficiency, a wide high-efficiency operating range, and superior anti-cavitation characteristics. By minimizing the number of wearing parts, it achieves significantly simplified installation and maintenance procedures. Its continuous trouble-free operating time is more than three times that of conventional multistage pumps, effectively reducing equipment operation and maintenance (O&M) costs as well as total life-cycle costs (LCC).

Through an innovative design that completely eliminates the conventional axial force balance mechanism, this pump serves as a direct drop-in replacement for traditional Type-D multistage pumps. Removing the balancing device eliminates friction losses and balance return flow (recirculation) losses, increasing pump efficiency by 5% to 14%. Furthermore, it thoroughly resolves common failure modes associated with balance mechanism wear—such as performance degradation and rotor seizure—substantially enhancing equipment reliability, service life, and overall operational performance.

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Magflow^® TDP Horizontal Self-Balancing Multistage Pump Design Features

1. Structural Overview & Nozzle Arrangement

Pump Definition: Horizontal sectional multistage centrifugal pump; the first stage can be configured with a single-suction or double-suction structure.
Nozzle Orientation: Suction nozzle supports horizontal or top-vertical orientation; discharge nozzle is top-vertical.
Drive & Rotation: Directly driven by the prime mover via a flexible pin coupling or a diaphragm coupling; rotates clockwise when viewed from the drive end (DE).

2. Casing & Hydraulic Flow Passage Components

Flow Chamber: The working chamber consists of the suction casing, stage casings, secondary suction casing, discharge casing, forward/reverse diffusers, and transition pipe, tightly secured via high-strength tie bolts.

3. Rotor & Bearing System

Rotor Assembly: Precision-assembled from the shaft, symmetrically arranged forward and reverse impellers, throttling and decompression device, thrower (deflector), and shaft sleeves.
Bearing Configuration: Features a grease-lubricated "fixed-floating" bearing arrangement. The drive end utilizes cylindrical roller bearings, while the non-drive end (NDE) incorporates angular contact ball bearings to ensure precise rotor positioning and absorb residual axial thrust.

4. Sealing & Protective System

Shaft Seal Options: Offers interchangeable mechanical seals or gland packing configurations; replaceable shaft sleeves are installed at the sealing zones to protect the shaft.

5. Maintenance Advantages

In-Line Servicing: The modular design allows rapid replacement of bearings and shaft seals without disconnecting suction or discharge piping, significantly reducing maintenance downtime.

Magflow^® TDP Self-Balancing Horizontal Multistage Pump Quick Selection Chart

Magflow® TDP Self-Balancing Horizontal Multistage Pump Quick Selection Chart

Magflow^® TDP Horizontal Self-Balancing Multistage Pump Performance Parameters

Model	Capacity Q (m³/h)	Head H (m)	Speed n (rpm)	Power P (kW)	Eff. η (%)	NPSHr (m)
TDP6-25	3.75-7.5	73.5-306	2950	4-18.5	53	2-2.5
TDP6-50	3.75-7.5	144-624	2950	11-55	36	3-3.5
TDP6-80	3.75-7.5	220-982	2950	18.5-75	36	3-3.5
TDP12-25	7.5-15	69-338.4	2950	7.5-30	58	2-2.5
TDP12-50	7.5-15	93-648	2950	15-75	49	2-2.5
TDP12-80	7.5-15	220-982	2950	30-132	40	2-2.5
TDP25-30	15-30	82.5-340	2950	15-45	68	2.2-2.4
TDP25-50	15-28	144-618	2950	22-110	61	2.4-2.8
TDP25-80	15-30	380-1013	2950	75-160	56	3.1-3.8
TDP46-30	30-55	81-340	2950	22-75	75	2.4-4.6
TDP46-50	30-55	138-666	2950	37-160	71	2.5-3.2
TDP46-80	27-54	380-1056	2950	110-280	65	3.9-5.5
TDP85-45	55-100	117-510	2950	55-185	77	3.2-5.2
TDP85-67	55-100	183-740	2950	90-280	73	3.3-4.4
TDP85-80	51-102	304-880	2950	132-355	71	3.5-4.5
TDP85-100	51-102	285-1100	2950	132-450	65	3.8-4.6
TDP120-50	96-140	126.9-545	2950	90-250	78	3.2-6.7
TDP120-100	96-144	360-1260	2950	220-630	74	3.8-5.5
TDP150-30	119-190	85.5-330	2950	75-220	83	3.8-5
TDP150-50	120-180	85-550	2950	75-355	75	3.2-6.6
TDP150-80	90-180	228-880	2950	185-630	75	3.2-6.6
TDP150-100	120-180	285-1100	2950	200-710	73	3.8-5
TDP155-67	100-185	118-760	2950	90-450	79	3.2-6.6
TDP200-50	120-240	135-580	2950	132-400	81	4.5-5.8
TDP200-100	150-240	168-1130	2950	185-900	76	3.5-5
TDP200-150	150-240	378-1725	2950	400-1400	72	2.5-3
TDP210-70	160-260	186-712	2950	200-710	79.2	6.2-7.8
TDP280-100	196-336	368-1100	2980	500-1250	78.5	4-6.5
TDP155-30	119-190	54-320	1480	45-200	82	3.2-4.8
TDP155-50	120-180	127.5-550	1480	110-355	71	3.2-6.6
TDP200-50	132-240	198-544	1480	185-450	75	2.3-4.1
TDP280-43	185-335	76-470	1480	110-500	81	2.5-5.2
TDP280-65	185-355	186-680	1480	280-900	74	2.8-5.0
TDP280-95	180-335	244-979.7	1480	355-1120	72.5	2.5-3.7
TDP300-45	200-350	80-445	1480	110-450	85	2.5-5.2
TDP360-40	300-440	106.5-420	1480	185-630	84	4.65-5.4
TDP360-60	300-440	210-640	1480	400-1000	74.5	3.1-5.3
TDP360-95	280-410	244-979.4	1480	400-1400	73	2.6-3.8
TDP450-60	335-500	113-650	1480	250-1000	84	4.1-6.3
TDP450-95	385-515	244-979.7	1480	500-1800	75	2.8-4
TDP500-57	450-550	162-600	1480	355-1250	82	4.4-5.8
TDP550-50	450-590	90-540	1480	220-1000	84	5.2-6.5
TDP580-60	450-638	165-650	1480	450-1250	82.5	3.16-5.16
TDP640-80	530-760	201.6-904	1480	710-2240	78	7.2
TDP720-60	550-850	171-660	1480	560-1800	82	7
TDP1100-85	850-1350	221-862	1450	1250-4500	84	7

Magflow^® TDP Horizontal Self-balancing Multistage Pump Typical Applications

1. Mining & Dewatering Industry
Mine Dewatering & Drainage: Evacuating high-head groundwater and drainage from underground coal mines, metal mines, and quarries.

Abrasive Sump / Mine Water Transfer: Pumping acidic, neutral, or mineral-laden mine water containing small suspended solids.

Tailing Water Recirculation: Transferring slurry supernatant and processed mine water across long distances and steep vertical elevations.

2. Power Plants & Energy Sector
Boiler Feed Water Systems: Supplying high-pressure, high-temperature feedwater to industrial boilers and thermal power plant steam generators.

High-Pressure Condensate Return: Circulating high-temperature condensate and hot water in power generation cycles.

District Heating Systems: Delivering pressurized hot water across municipal or industrial district heating networks.

3. Oil, Gas & Petrochemical Industry
Water Injection Systems: Injecting treated water into oilfield reservoirs to maintain pressure and enhance oil recovery (EOR).

Hydrocarbon & Oil Transfer: Handling light crude oil, refined fuels, and liquid hydrocarbons under high pressure.

Petrochemical Feed Boosting: Feeding chemical feedstock and corrosive process fluids against elevated discharge pressures.

Where you can find multistage pumps

Water Resources, Desalination & Municipal Engineering
Long-Distance High-Head Water Transfer: Transferring water across mountainous terrain, steep topography, or extensive pipelines.

Reverse Osmosis (RO) Feed Boosting: Generating the high feed pressure required for seawater desalination and industrial RO filtration plants.

Municipal Booster Stations: Boosting municipal main water pressure and supplying water to high-rise buildings.

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