Product Description

The DG Series Boiler Multi-Stage Centrifugal Pump is designed for high-pressure feedwater and clean water transfer in power plants and industrial systems. With flow from 6.3 to 280 m³/h, head up to 1,000 m, and power range 4.0 to 1,250 kW, it ensures stable operation under demanding conditions. Its horizontal, multistage design offers reliability, high pressure capability, and compatibility with boiler and steam systems.

Keywords: boiler feed pump, multistage centrifugal pump, power plant feedwater pump, high-pressure pump, DG series.

🌍 Applications

Power Plants & Thermal Stations — delivering boiler feedwater under high pressure
Industrial Steam Systems — supporting chemical, petrochemical, and refinery plants
High-Rise Building Water Systems — boosting pressure for upper floors
District Heating & Hot Water Circulation — in municipal thermal networks
Desalination & Reverse Osmosis — as high-pressure feed pump
Clean Water Transfer in Process Systems — in factories needing stable high-pressure water supply

Long-tail / B2B keywords included: “industrial boiler feed pump,” “DG multistage pump for power plant,” “high pressure centrifugal pump supplier.”

⚙️ Technical Data

Parameter	Specification / Range	Parameter	Specification / Range
Flow Rate	6.3 – 280 m³/h	Power (Corollary)	4.0 – 1,250 kW
Head Range	75 – 1,000 m	Inlet Diameter	40 – 200 mm
Medium Temperature	0 – 170 °C	Operating Pressure	≤ 40 bars
Pump Type	Horizontal Multistage Centrifugal	Installation Orientation	Horizontal inline
Standards & Origin	ISO / SUHUA / China

Note: Efficiency, speed, NPSH data vary by model; detailed curves available upon request.

Product Specifications

Type	Speed (r/min)	Flow (m³/h)	Flow (L/S)	Head (m)	Efficiency (%)	Shaft power (kW)	Motor Power (kW)	NPSH (m)
DG 6-25×3	2950	3.75	1.04	76.5	33	2.37	5.5	2.0
		6.3	1.75	75	45	2.86		2.0
		7.5	2.08	73.5	47	3.19		2.5
DG 6-25×4	2950	3.75	1.04	102	33	3.16	7.5	2.0
		6.3	1.75	100	45	3.81		2.0
		7.5	2.08	98	47	4.26		2.5
DG 6-25×5	2950	3.75	1.04	127.5	33	3.95	7.5	2.0
		6.3	1.75	125	45	4.77		2.0
		7.5	2.08	122.5	47	5.32		2.5
DG 6-25×6	2950	3.75	1.04	153	33	4.73	11	2.0
		6.3	1.75	150	45	5.72		2.0
		7.5	2.08	147	47	6.39		2.5
DG 6-25×7	2950	3.75	1.04	178.5	33	5.52	11	2.0
		6.3	1.75	175	45	6.67		2.0
		7.5	2.08	171.5	47	7.45		2.5
DG 6-25×8	2950	3.75	1.04	204	33	6.31	15	2.0
		6.3	1.75	200	45	7.63		2.0
		7.5	2.08	196	47	8.58		2.5
DG 6-25×9	2950	3.75	1.04	229.5	33	7.10	15	2.0
		6.3	1.75	225	45	8.52		2.0
		7.5	2.08	220.5	47	9.58		2.5
DG 6-25×10	2950	3.75	1.04	255	33	7.89	18.5	2.0
		6.3	1.75	250	45	9.53		2.0
		7.5	2.08	245	47	10.63		2.5
DG 6-25×11	2950	3.75	1.04	280.5	33	8.68	18.5	2.0
		6.3	1.75	275	45	10.5		2.0
		7.5	2.08	269.5	47	11.71		2.5
DG 6-25×12	2950	3.75	1.04	306	33	9.47	18.5	2.0
		6.3	1.75	300	45	11.44		2.0
		7.5	2.08	294	47	12.78		2.5
DG 12-25×3	2950	7.5	2.08	84.6	44	3.93	7.5	2.0
		12.5	3.47	75	54	4.73		2.0
		15.0	4.17	69	53	5.37		2.5
DG 12-25×4	2950	7.5	2.08	112.8	44	5.24	11	2.0
		12.5	3.47	100	54	6.30		2.0
		15.0	4.17	92	53	7.09		2.5
DG 12-25×5	2950	7.5	2.08	141	44	6.55	11	2.0
		12.5	3.47	125	54	7.88		2.0
		15.0	4.17	115	53	8.86		2.5
DG 12-25×6	2950	7.5	2.08	169.2	44	7.85	15	2.0
		12.5	3.47	150	54	9.46		2.0
		15.0	4.17	138	53	10.64		2.5
DG 12-25×10	2950	7.5	2.08	282	44	13.09	22	2.0
		12.5	3.47	250	54	15.76		2.0
		15.0	4.17	230	53	17.73		2.5
DG 12-25×11	2950	7.5	2.08	310.2	44	14.4	22	2.0
		12.5	3.47	275	54	17.34		2.0
		15.0	4.17	253	53	19.5		2.5
DG 25-30×7	2950	15	4.17	238	50	19.44	30	2.2
		25	6.94	210	62	23.1		2.2
		30	8.33	192.5	63	24.90		2.6
DG 25-30×8	2950	15	4.17	272	50	22.22	37	2.2
		25	6.94	240	62	26.4		2.2
		30	8.33	220	63	28.53		2.6
DG 85-45×3	2950	55	15.3	153	63	36.38	55	3.2
		85	23.6	135	72	43.3		4.2
		100	27.8	117	70	45.52		5.2
DG 85-45×4	2950	55	15.3	204	63	48.5	75	3.2
		85	23.6	180	72	57.87		4.2
		100	27.8	156	70	60.7		5.2
DG 85-45×5	2950	55	15.3	255	63	60.63	90	3.2
		85	23.6	225	72	72.34		4.2
		100	27.8	195	70	75.86		5.2
DG 85-45×6	2950	55	15.3	306	63	72.75	110	3.2
		85	23.6	270	72	86.81		4.2
		100	27.8	234	70	91.04		5.2
DG 85-45×7	2950	55	15.3	357	63	84.88	132	3.2
		85	23.6	315	72	101.3		4.2
		100	27.8	273	70	106.2		5.2
DG 85-45×8	2950	55	15.3	408	63	97.0	132	3.2
		85	23.6	360	72	115.7		4.2
		100	27.8	312	70	121.4		5.2
DG 85-45×9	2950	55	15.3	459	63	109.1	160	3.2
		85	23.6	405	72	130.2		4.2
		100	27.8	351	70	136.6		5.2
DG 155-30×2	1480	100	27.8	65	64	27.66	55	3.2
		155	43	60	75	33.77		3.9
		185	51.4	55	75	36.95		4.8
DG 155-30×3	1480	100	27.8	97.5	64	41.2	75	3.2
		155	43	90	75	50.65		3.9
		185	51.4	82.5	75	55.4		4.8
DG 155-30×4	1480	100	27.8	130	64	55.32	90	3.2
		155	43	120	75	67.54		3.9
		185	51.4	110	75	73.9		4.8
DG 155-30×5	1480	100	27.8	162.5	64	69.15	110	3.2
		155	43	150	75	84.42		3.9
		185	51.4	137.5	75	92.37		4.8
DG 155-30×6	1480	100	27.8	195	64	82.98	132	3.2
		155	43	180	75	101.3		3.9
		185	51.4	165	75	110.8		4.8
DG 155-30×7	1480	100	27.8	227.5	64	96.81	160	3.2
		155	43	210	75	118.2		3.9
		185	51.4	192.5	75	129.3		4.8
DG 155-30×8	1480	100	27.8	260	64	110.6	180	3.2
		155	43	240	75	135.1		3.9
		185	51.4	220	75	147.8		4.8
DG 155-30×9	1480	100	27.8	292.5	64	124.5	180	3.2
		155	43	270	75	152		3.9
		185	51.4	247.5	75	166.3		4.8
DG 155-30×10	1480	100	27.8	325	64	138.3	225	3.2
		155	43	300	75	168.8		3.9
		185	51.4	275	75	184.7		4.8
DG 155-67×3	2950	100	27.8	228	64	97.0	132	3.2
		155	43	200	74	114.7		5.0
		185	51.4	177	72	123.9		6.6
DG 155-67×4	2950	100	27.8	304	64	129.4	185	3.2
		155	43	268	74	152.9		5.0
		185	51.4	236	72	165.1		6.6
DG 155-67×5	2950	100	27.8	380	64	161.7	220	3.2
		155	43	335	74	191.1		5.0
		185	51.4	295	72	206.4		6.6
DG 155-67×6	2950	100	27.8	456	64	194	275	3.2
		155	43	402	74	229.3		5.0
		185	51.4	354	72	247.7		6.6
DG 155-67×7	2950	100	27.8	532	64	226.4	350	3.2
		155	43	469	74	267.5		5.0
		185	51.4	413	72	289		6.6
DG 155-67×8	2950	100	27.8	608	64	258.7	350	3.2
		155	43	536	74	305.7		5.0
		185	51.4	472	72	330.3		6.6
DG 155-67×9	2950	100	27.8	684	64	291.1	440	3.2
		155	43	603	74	344		5.0
		185	51.4	531	72	371.9		6.6
DG 280-43×2	1480	185	51.4	94	69	68.6	110	3.0
		280	77.8	86	77	85.17		4.7
		335	93.1	76	75	92.4		6.0
DG 280-43×3	1480	185	51.4	141	69	103	150	3.0
		280	77.8	129	77	127.7		4.7
		335	93.1	114	75	138.7		6.0
DG 280-43×4	1480	185	51.4	188	69	137.3	230	3.0
		280	77.8	172	77	170.3		4.7
		335	93.1	152	75	184.9		6.0
DG 280-43×5	1480	185	51.4	235	69	171.6	300	3.0
		280	77.8	215	77	212.9		4.7
		335	93.1	190	75	231.1		6.0
DG 280-43×6	1480	185	51.4	282	69	205.9	300	3.0
		280	77.8	258	77	255.5		4.7
		335	93.1	228	75	277.3		6.0
DG 280-43×7	1480	185	51.4	329	69	240.2	350	3.0
		280	77.8	304	77	298.1		4.7
		335	93.1	266	75	323.6		6.0

💡 Features & Benefits

High Pressure Capability — Able to reach head up to 1,000 m to meet demanding boiler feed requirements.
Modular Multistage Design — Allows adjusting number of stages to match project head needs, improving flexibility.
Horizontal Layout — Easier alignment and maintenance in industrial settings.
Robust Construction for High Load — Designed for continuous duty, strong materials resist wear under high pressure.
Wide Temperature & Pressure Tolerance — Supports up to 170 °C and 40 bars, compatible with steam-augmented systems.
Low Vibration & Reliability — Balanced rotors and design minimize vibration, extending life of bearings and seals.
Serviceability & Spare Parts Access — Inspection and maintenance possible without full disassembly.
OEM / Export Ready — Direct manufacturer supply, customizable options, and export-standard packaging.

❓ Frequently Asked Questions

Q1: What is the maximum head and flow capacity?

A1: The DG Series pump supports flows from 6.3 to 280 m³/h and heads up to 1,000 m.

Q2: Can this pump be used in power plants as a boiler feed pump?

A2: Yes. It is designed especially for high-pressure boiler feedwater duty in thermal power stations and industrial steam systems.

Q3: What are the operating temperature and pressure limits?

A3: Operates from 0 to 170 °C, and can handle pressures up to 40 bars.

Q4: How do I select the correct model for my project?

A4: Provide your required flow (m³/h), total head (m), operating temperature/pressure, and water quality. We’ll recommend the best stage count and configuration.

Q5: Are there customization options?

A5: Yes. As a pump manufacturer in China, we offer OEM/ODM, custom materials, mechanical seal choices, special coatings, and tailored stages.

Industrial Boiler Feed Multistage Centrifugal Pump | High Pressure Water Pump for Power Plants & Steam Systems

Product Description

🌍 Applications

⚙️ Technical Data

Product Specifications

💡 Features & Benefits

❓ Frequently Asked Questions

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