High Pressure Feed Water Multistagepump for Power Plant, Nucleare Power Plant

• Customization: Available
• After-sales Service: The Best Service
• Warranty: The Best Service
• Model NO.: DG
• Max.Head: >150m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Impeller Number: Multistage Pump
• Working Pressure: Middle Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: None
• Mounting Height: None
• Impeller: Closed
• Usage: Pump, Feed Water Pump
• Color: According to Customer
• Standard: API610
• Stage: Multistage
• Power: Motor
• Speed: 1450/2980rpm
• Transport Package: Export Packing
• Specification: According to customer requirements
• Trademark: Haipurui
• Origin: Shenyang City, China
• Production Capacity: 1000PCS/Year

Product Description

Application:

DG type high pressure feed water pump can be used as high pressure boiler water supply or for other high pressure fresh water pump. 

Range of performance Are as follows:

Flow: Q=32~620m³/h
Head: H=550-2210m
Medium Temperature: T≤210ºC

Structure:

DG type high-pressure boiler feed pump for single casing segmental type multistage centrifugal pump, inlet and outlet are vertical upward, with poles to the stage casing segment and the discharge casing are connected into a whole, between the sections of the static sealing surface on the surface of metal seal and O-ring seal for the auxiliary.
For DGB type high pressure boiler feed water pump, Suction section, middle section, spit out section are made of forgings.
 

Shaft Seal:

Using Packing seal or Mechanical seal, and need cooling water.
 

Bearing and balancing device:

Pump rotor from both ends of the pump sliding bearing to support the use of self lubrication or forced lubrication, the pump itself with the oil system.
The axial thrust of the rotor is balanced by the balance disc, and the thrust bearing is provided with a thrust bearing. Used to withstand the residual axial force generated due to changes in the operating conditions. The balance water pipe is connected to the pump suction port or the field line.

Transmission:

Pump through the elastic coupling with the drive (motor, turbine, diesel engine and so on)is connected, can also according to user needs with tooth type coupling, diaphragm coupling, fluid couplings.
Clockwise rotation from the drive end to the pump.   
 

Material:

The suction casing, discharge casing, diffuser and impeller: carbon steel or chrome steel;
 Shaft ,sealing ring, Diffusor Sleeve: chrome-vanadium  steel or chromium steel;
 

structure drawing

1	suction casing	2	Discharge casing	3	Stage casing	4	Diffusers	5	First diffuser	6	End diffuser
7	poles	8	Shaft	9	Impeller	10	Sealing ring	11	Balance sleeve	12	thrust disc
13	Bearing part

Performance table

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
1DG-7	140 170 200	920 850 740	2980	75 77 72	3.8 4.5 5.4	467.6 511.0 559.7	600	3180
1DG-8	100 175 200	1100 980 880	2980	75 77 72	3.9 4.5 5.4	339.4 606.5 665.6	700	3260
1DG-9	115 180 200	1150 1100 1000	2980	75 77 74	3.9 4.5 5.4	480.0 700.0 736.0	800	3340
1DG-10	110 165 200	1298 1200 1080	2980	75 77 74	3.9 4.5 5.4	518.0 700.0 795.0	800	3420
1DG-11	105 160 200	1400 1320 1188	2980	75 77 74	3.9 4.5 5.4	533.7 747.0 874.0	900	3500
1DG-12	120 168 200	1550 1400 1296	2980	75 77 74	3.9 4.5 5.4	675.0 831.8 953.9	1000	3580
2DG-5	170 200 234	865 845 810	2980	68.0 73.0 75.0	4.5 5.0 5.5	589.0 627.0 688.0	710	3000
2DG-6	200 220 240	1008 948 926	2980	71.0 73.0 76.0	5.0 5.4 6.0	773.0 778.0 796.0	900	3600
2DG-8	240 270 300	1280 1213 1128	2980	76.0 77.0 76.0	5.6 6.0 6.5	1100.8 1158.3 1212.6	1250 1600	4200

 

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
2DG-9 2DGB-9	170 200 234	1520 1520 1455	2980	69 73.5 76.5	4.5 5.0 5.5	1047.0 1126.0 1212.0	1250 1400	4500
2DG-10 2DGB-10	200 270 280	1680 1515 1480	2980	73.5 77.6 77.6	5.5 6.0 6.2	1245.0 1435.0 1454.0	1600	4800
3DG-10 3DGB-10	360 440 496	1660 1560 1470	2980	82.1 84.4 83.0	7.8 8.3 8.9	1982.0 2215.0 2392.0	2250	4800
4DG-8C	500 550 600	1670 1630 1580	2980	79.0 81.0 82.0	7.5 10.0 14.0	2878.0 3014.0 3148.0	3400	6500
5DG-10 5DGB-10	500 550 620	2210 2150 2100	2980	82.0 84.0 84.0	8.8 10.0 11.0	3670.0 3833.0 3148.0	4800	7000
DG270-140B	270 320 360	1570 1500 1422	2980	76.0 78.0 80.0	6.1 6.5 6.9	1519.0 1676.0 1743.0	2000	4800
DG270-140C	270 360 440	1750 1610 1460	2980	77.5 81.0 80.0	7.0 7.5 8.1	1660.3 1948.7 2186.8	2300	4800
DG400-180C	400 450 500	1975 1900 1815	2980	79.5 81.0 81.0	8.0 8.5 9.0	2706.2 2874.6 3051.1	3200 4000	7000
DG45-120X5	32 45 54	630 600 560	2980	42.0 47.0 48.0	2.5 3.5 4.0	130.7 156.4 171.6	185

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
DG45-120X6	32 45 54	756 720 672	2980	42.0 47.0 48.0	2.5 3.5 4.0	156.9 187.7 205.9	220
DG45-120X7	32 45 54	882 840 784	2980	42.0 47.0 48.0	2.5 3.5 4.0	183.0 219.0 240.2	250
DG45-120X8	32 45 54	808 960 896	2980	42.0 47.0 48.0	2.5 3.5 4.0	209.2 250.3 274.5	280
DG45-120X9	32 45 54	1134 1080 1008	2980	42.0 47.0 48.0	2.5 3.5 4.0	235.3 281.6 308.8	355
DG45-120X10	32 45 54	1260 1200 1120	2980	42.0 47.0 48.0	2.5 3.5 4.0	261.4 312.9 343.1	400
DG45-120X11	32 45 54	1386 1320 1232	2980	42.0 47.0 48.0	2.5 3.5 4.0	287.6 344.2 377.5	400
DG45-120X12	32 45 54	1512 1440 1344	2980	42.0 47.0 48.0	2.5 3.5 4.0	313.7 375.5 411.8	450
DG65-120X5	45 65 78	630 500 550	2980	47.0 52.0 53.0	3.0 3.5 4.5	164.3 204.2 220.4	250
DG65-120X6	45 65 78	756 720 660	2980	47.0 52.0 53.0	3.0 3.5 4.5	197.1 245.1 264.5	280

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
DG65-120X7	45 65 78	882 840 770	2980	47.0 52.0 53.0	3.0 3.5 4.5	230.0 286.0 308.6	355
DG65-120X8	45 65 78	1008 960 880	2980	47.0 52.0 53.0	3.0 3.5 4.5	262.8 326.8 352.7	400
DG65-120X9	45 65 78	1134 1080 990	2980	47.0 52.0 53.0	3.0 3.5 4.5	295.7 367.6 396.8	450
DG65-120X10	45 65 78	1260 1200 1100	2980	47.0 52.0 53.0	3.0 3.5 4.5	328.5 408.5 440..9	500
DG65-120X11	45 65 78	1386 1320 1210	2980	47.0 52.0 53.0	3.0 3.5 4.5	361.4 449.3 485.0	560
DG65-120X12	45 65 78	1512 1440 1320	2980	47.0 52.0 53.0	3.0 3.5 4.5	394.2 490.2 529.0	630
DG80-120X5	56 80 96	635 600 565	2980	55.0 64.0 69.0	3.6 3.8 4.5	176.0 204.0 214.0	280
DG80-120X6	56 80 96	762 720 678	2980	55.0 64.0 69.0	3.6 3.8 4.5	211.0 245.0 257.0	315
DG80-120X7	56 80 96	889 840 791	2980	55.0 64.0 69.0	3.6 3.8 4.5	247.0 286.0 300.0	355

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
DG80-120X8	56 80 96	1016 960 904	2980	55.0 64.0 69.0	3.6 3.8 4.5	282.0 327.0 343.0	400
DG80-120X9	56 80 96	1143 1080 1017	2980	55.0 64.0 69.0	3.6 3.8 4.5	317.0 368.0 385.0	450
DG80-120X10	56 80 96	1270 1200 1130	2980	55.0 64.0 69.0	3.6 3.8 4.5	352.2 408.5 428.2	500
DG80-120X11	56 80 96	1398 1320 1243	2980	55.0 64.0 69.0	3.6 3.8 4.5	387.4 449.4 471.0	560
DG80-120X12	56 80 96	1524 1440 1356	2980	55.0 64.0 69.0	3.6 3.8 4.5	422.6 490.2 513.8	630
DG120-120X5	84 120 144	640 600 535	2980	62.0 70.0 71.0	4.5 5.0 5.2	236.1 280.1 295.5	355
DG120-120X6	84 120 144	768 720 642	2980	62.0 70.0 71.0	4.5 5.0 5.2	283.4 336.1 354.6	400
DG120-120X7	84 120 144	896 840 749	2980	62.0 70.0 71.0	4.5 5.0 5.2	330.6 392.2 413.7	500
DG120-120X8	84 120 144	1024 960 856	2980	62.0 70.0 71.0	4.5 5.0 5.2	377.8 448.2 472.8	560

Pump type	Q Flow(m3/h)	H Head(m)	n (r/min)	η(%)	Npsh(m)	Pa (kw)	P (kw)	W (kg)
DG120-120X9	84 120 144	1152 1080 963	2980	62.0 70.0 71.0	4.5 5.0 5.2	425.1 504.2 531.9	630
DG120-120X10	84 120 144	1280 1200 1070	2980	62.0 70.0 71.0	4.5 5.0 5.2	472.3 560.2 591.0	710
DG120-120X11	84 120 144	1408 1320 1177	2980	62.0 70.0 71.0	4.5 5.0 5.2	519.5 616.3 650.1	710
DG120-120X12	84 120 144	1536 1440 1284	2980	62.0 70.0 71.0	4.5 5.0 5.2	566.7 672.3 709.2	800
DG160-120X5	112 160 192	640 600 545	2980	67.0 72.0 69.0	4.0 4.2 4.8	291.4 363.1 413.0	450
DG160-120X6	112 160 192	768 720 654	2980	67.0 72.0 69.0	4.0 4.2 4.8	349.6 435.7 495.6	500
DG160-120X7	112 160 192	896 840 703	2980	67.0 72.0 69.0	4.0 4.2 4.8	407.9 508.4 532.7	630
DG160-120X8	112 160 192	1024 960 872	2980	67.0 72.0 69.0	4.0 4.2 4.8	466.2 581.0 680.8	710
DG160-120X9	112 160 192	1152 1080 981	2980	67.0 72.0 69.0	4.0 4.2 4.8	524.4 653.6 743.4	800

Shenyang Haipurui Vacuum Technology Co., Ltd. is a high-tech enterprise dedicated to the research and development, design, manufacturing, sales, and service of vacuum pumps and complete vacuum equipment. The company has experienced vacuum technicians and absorbs vacuum technology to continuously develop and improve product design and application, providing good solutions to meet vacuum applications in various industries. Our company has passed the ISO9001quality management system certification and has successively obtained twelve patents and three software copyrights, striving to break through and improve our research and development level. Our products are widely used in industries such as petrochemicals, pharmaceuticals, hospitals, electronics, new materials, aerospace, printing, packaging, papermaking, automation, etc. Haipurui's strong technical strength and comprehensive, high-quality services help customers and partners achieve maximum success.

The company's products mainly have two categories. One is vacuum acquisition equipment, namely vacuum pumps, including 2BV, 2BE, SK, 2SK series liquid ring vacuum pumps and compressors, SY,2SY series liquid ring compressors, and XD series single-stage rotary vane vacuum pumps; The second category is vacuum application products, including the 2BW series liquid ring vacuum pump closed cycle system, JZJ series Roots vacuum pump unit, and ZF series central vacuum system.

Among them, vacuum application products use vacuum acquisition equipment as the vacuum host (vacuum source), equipped with gasliquid separators, vacuum buffer tanks, heat exchangers, pressure transmitters, temperature transmitters, liquid level transmitters, replenishment solenoid valves, inlet pneumatic valves, cavitation protection devices, working fluid flow meters, intake filters, etc., which can monitor various control points in real time. And it can be configured with PLC, human-machine interface touch screen, etc. to automatically open pumps, valves, etc. according to user processes, record various parameters and realtime operating status, and achieve true process automation.


1.Are you a factory or trading company?
We are a factory and we have professional team of workers,Designers and inspectors.

2.Do you accept custom?
Of course.We have professional teams who make your designs,photos,imagines and OEM orders into real production.

3.What's your shipping terms?
If you need to ship by air,we can use DHL,UPS,FedEx,TNT or EMS.If you need to ship by sea,we have many good forwarders to work with,they can provide the best price for you.

4.Whats your payment terms?
Until now , we can accept TT.LC.

5.What information do you need to offer a quotation?                
Pump Capacity: m³/h or L/S
Voltage: V
Frequency: Hz