Clh Series Marine Vertical Centrifugal Pump

• Customization: Available
• After-sales Service: Provide 24 - Hour Online Technical Support
• Warranty: Free Maintenance Within One Year
• Max.Head: 50-80m
• Max.Capacity: >400 L/min
• Driving Type: Motor
• Impeller Number: Single-Stage Pump
• Working Pressure: Middle Pressure Pump
• Influent Type of Impeller: Single Suction Pump
• Position of Pump Shaft: Horizontal Pump
• Pump Casing Combined: Horizontal Split Pumps
• Mounting Height: Since Irrigation Centrifugal Pumps
• Impeller: Closed
• Usage: Pump, Pumps
• Capacity M3/H: 10-250
• Head M: 16-32
• Speed R/Min: 2900
• Voltage: 380V
• Transport Package: Wooden Case Packaging
• Trademark: Cagon
• Origin: China
• HS Code: 8413709990
• Production Capacity: 1000PCS/Month

Product Description

CLH series marine vertical centrifugal pump

CLH Series marine pumps are used at cabin bottom to cool water and fight fire.It is able to carry sea water under 80 degrees.Fresh water and other non-eroding liquid


Main technical parameter

Type	(50Hz    3 φ 380v) main technical parameter					Motor type power        Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power kw
15CLH-3Z	0.5	15	2900	3		Y80L1-2H	0.75	33
25CLH-6.5Z	3	8	2900	4	0.16	Y80L1-2H	0.75	35
32CLH-5Z	5	15	2900	4	0.52	Y80L1-2H	0.75	38
40CLH-5Z	10	30	2900	4	1.82	Y90L-2H	2.2	73
40CLH-3.5Z	5	30	2900	4	1.26	Y90S-2H	1.5	65
40CLH-3Z	10	50	2900	2.8	3.24	Y112M-2H	4	110
40CLH-2.5Z	10	65	2900	3	4.66	Y132S1-2H	5.5	136
40CLH-2Z	5	50	2900	2.8	2.28	Y100L-2H	3	104
50CLH-7Z	20	30	2900	3	2.47	Y112M-2H	4	83
50CLH-7AZ	18	25	2900	3	1.92	Y100L-2H	3	72
50CLH-5Z	20	45	2900	4	4.6	Y132S1-2H	5.5	98
50CLH-5AZ	20	35	2900	4	3.6	Y132S1-2H	5.5	98
50CLH-4.5Z	20	50	2900	3	4.54	Y132S1-2H	5.5	98
50CLH-4.5AZ	15	40	2900	3	3.26	Y132S1-2H	5.5	98
50CLH-4	12.5	32	2900	2.8	2	Y100L-2H	3
50CLH-3.5Z	20	65	2950	3.5	8.85	Y160M1-2H	11	145
50CLH-2.5	20	100	2950	2.6		Y160M2-2H	15
65CLH-8.5Z	30	30	2900	3	4.02	Y132S1-2H	5.5	125
65CLH-8.5AZ	25	26	2900	3	2.95	Y112M-2H	4	106
65CLH-8Z	25	10	1450	4	1.05	Y90L-4H	1.5	144
65CLH-5.5Z	30	50	2950	3	6.92	Y160M1-2H	11	171
65CLH-5.5AZ	27	45	2900	3	5.7	Y132S2-2H 7	7.5	140
65CLH-4.5Z	30	65	2950	3	9.48	Y160M1-2H	11	200
65CLH-4.5AZ	27	58	2950	3	7.9	Y160M1-2H	11	141
65CLH-3Z	25	86	2950	4	14.9	Y160L-2H	18.5	265
65CLH-2.5Z	10	30	1450	3	2.8	Y112M-2H	4
80CLH-16Z	50	20	2900	3.5	3.6	Y132S1-2H	5.5	156
80CLH-11Z	50	30	2900	3.5	6.19	Y132S2-2H	7.5	162
80CLH-11AZ	45	26	2900	3.5	4.98	Y132S2-2H	7.5	162
80CLH-8.5	40	35	2900	3.5	5.8	Y132S2-2H	7.5
80CLH-7Z	50	50	2950	3.5	10.47	Y160M2-2H	15	245
80CLH-7AZ	44	45	2950	3.5	8.56	Y160M1-2H	11	230
80CLH-6	50	50	2950	3	10.5	Y160M2-2H	15
80CLH-5.5Z	50	65	2950	3.5	15.25	Y160L-2H	18.5	275
80CLH-5.5AZ	46	57	2950	3.5	12.76	Y160M2-2H	15	250

Type	(50Hz    3 φ 380v) main technical parameter					Motor type power        Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power kw
80CLH-5	60	85	2950	4	24.8	Y200L1-2H	30	595
80CLH-5A	50	80	2950	4	19.5	Y180M-2H	22	560
80CLH-4.5Z	50	80	2950	3.5	19.5	Y180M-2H	22	295
80CLH-3	50	125	2950	4		Y200L2-2H	37
100CLH-22Z	95	15	2900	5	5.18	Y132M2-2H	7.5	142
100CLH-19Z	100	20	2950	5	7.27	Y160M1-2H	11	192
100CLH-15Z	100	30	2950	4.8	11.19	Y160M2-2H	15	215
100CLH-15Z	108	30	2950	4.8		Y160M2-2H	15	215
100CLH-15AZ	90	27	2950	4.8	9.32	Y160M1-2H	11	192
100CLH-13Z	70	30	2950	4	8.41	Y160M1-2H	11	195
100CLH-13AZ	63	27	2950	4	6.18	Y160M1-2H	11	194
100CLH-11Z	80	15	1450	2.5	4.36	Y132S-4H	5.5	152
100CLH-10Z	100	50	2950	4.8	18.39	Y180M-2H	22	305
100CLH-10AZ	86	45	2950	5	14.84	Y160L-2H	18.5	240
100CLH-10	100	50	2950	4.8	18.39	Y180M-2H	22	560
100CLH-10A	86	45	2950	5	14.84	Y160L-2H	18.5	540
100CLH-9	100	50	2950	4	18.9	Y180M-2H	22
100CLH-8.5Z	70	45	2950	4	12.89	Y160L-2H	18.5	239
100CLH-6	100	80	2950	4	30.3	Y200L2-2H	37	487
100CLH-6S	100	80	2950	4	29	Y200L2-2H	37
100CLH-6A	93	70	2950	4	24.2	Y200L1-2H	30	457
100CLH-6B	80	62	2950	4	18.5	Y180M-2H	22
100CLH-6BZ	70	60	2950	3.8	15.8	Y180M-2H	22
100CLH-5	100	125	2950	4.5		Y280S-2H	75
125CLH-19	150	30	2950	5	16.34	Y180M-2H	22	308
125CLH-19A	135	26.5	2950	5.5	13.32	Y160L-2H	18.5	280
125CLH-19Z	150	30	2950	5	16.34	Y180M-2H	22	242
125CLH-19AZ	135	26.5	2950	5.5	13.34	Y160L-2H	18.5	222
125CLH-13	200	50	2950	5	34.9	Y225M-2H	45	448
125CLH-13A	185	44	2950	5	28.8	Y200L2-2H	37	378
125CLH-13B	165	34	2950	5	19.9	Y180M-2H	22	313
125CLH-12	160	50	2950	5	28.3	Y200L2-2H	37	378
125CLH-10	150	65	2950	5.5	36.86	Y225M-2H	45	525
125CLH-10A	130	58	2950	5.5	29.32	Y200L2-2H	37	450
125CLH-8	140	86	2950	4	46.7	Y250M-2H	55	650
125CLH-8A	120	80	2950	4	38.5	Y225M-2H	45	580

Type	(50Hz    3 φ 380v) main technical parameter					Motor type power        Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power kw
125CLH-6.5	150	110	2950	5.5	62.4	Y280S-2H	75	935
150CLH-26Z	200	20	2950	5.5	14.3	Y160L-2H	18.5	295
150CLH-26AZ	190	17	2950	5.5	11.7	Y160M2-2H	15	270
150CLH-22Z	200	30	2950	6	20.94	Y200L1-2H	30	400
150CLH-18Z	160	14	1480	6.5	7.63	Y160M-4H	11	258
150CLH-13.5	180	50	2950	5	32.67	Y225M-2H	45	448
150CLH-13	200	20	1480	3.5	13.62	Y180M-4H	18.5	450
150CLH-13A	187	17	1480	3.5	11	Y160L-4H	15	422
150CLH-11.5Z	130	50	2950	4.5		Y200L1-2H	30	450
150CLH-11	180	65	2950	6.2	43.63	Y250M-2H	55	738
150CLH-10.5	250	32	1480	4	29.1	Y225S-4H	37	556
150CLH-10	260	86	2950	4	81.7	Y315S-2H	110
150CLH-9	200	32	1480	3.5	22.1	Y200L-4H	30	495
150CLH-9A	180	28	1480	3.5	18.2	Y180L-4H	22	435
150CLH-9B	160	25	1480	3.5	14.7	Y160L-2H	18.5	395
150CLH-7	200	125	2950	5	93	Y315S-2H	110	1380
150CLH-7A	180	115	2950	5	78.5	Y280M-2H	90	950
150CLH-7B	160	105	2950	5	63.5	Y280S-2H	75	935
150CLH-6	160	50	1480	4	29.8	Y225S-4H	37
150CLH-6A	150	45	1480	4	25.2	Y200L-4H	30
200CLH-18	400	20	1480	4.5	27.2	Y225S-4H	37
200CLH-15G	250	25	1780	3.8	21.3	Y200L-4H	30
200CLH-12	300	30	1480	4	30.6	Y225S-4H	37	629
200CLH-12A	280	25	1480	4	24.1	Y200L-4H	30	568
200CLH-9	320	32	1480	4	36.7	Y225M-4H	45	719
250CLH-18	500	30	1480	4.5	51.1	Y280S-4H	75
250CLH-18A	500	24	1480	4.5	40.9	Y225M-4H	45
250CLH-18B	450	20	1480	4.5	33.6	Y225S-4H	37	754
300CLH-8	700	100	1480				355
2/65CLH-6	36	90	2950	3	15.8	Y160L-2H	18.5	317
3/65CLH-6	36	135	2950	3	23.8	Y200L1-2H		372
4/65CLH-6	36	180	2950		31.8	Y200L2-2H	37	420
2/40CLH-3	20	70	2950	3.5	10.05	Y160M2-2H	15
2/50CLH-2.5	35	140	2950	4	26.15	Y200L1-2H	30
2/65CLH-3.5	50	120	2950	4.5	27.68	Y200L2-2H	37
2/40CLH-2Z	6	110	2900	3.5	5.14	Y132S2-2H	7.5	170
2/40CLH-4.5	8	20	1450	3	1.08	Y90L-4H	1.5	120

Type	(50Hz    3 φ 380v) main technical parameter					Motor type power        Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power kw
3/40CLH-4.5	8	30	1450	3	1.61	Y100L1-4H	2.2	154
4/40CLH-4.5	8	40	1450	3	2.15	Y112M-4H	4	190
5/40CLH-4.5	8	50	1450	3	2.69	Y112M-4H	4	215
6/40CLH-4.5	8	60	1450	3	3.22	Y132S-4H	5.5	271
7/40CLH-4.5	8	70	1450	3	3.76	Y132S-4H	5.5	296
8/40CLH-4.5	8	80	1450	3	4.3	Y132M-4H	7.5	341
9/40CLH-4.5	8	90	1450	3	4.84	Y132M-4H	7.5	366

Parameters in case of power supply frequency of 60Hz    3 φ 440v

Type	(60Hz    3 φ 440v) main technical parameter					Motor type power Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power Kw
25CLH-6.5ZG	3.6	11.5	3500	4	0.27	Y80L1-2H	0.75
32CLH-5ZG	6	21.6	3500	5.6	0.89	Y80L2-2H	1.1
40CLH-5ZG	12	42	3500	5	3.05	Y112M-2H	4
40CLH-3.5ZG	6	45	3500	5	2.26	Y100L-2H	3
40CLH-3ZG	12	72	3500	4	5.88	Y132S2-2H	7.5
40CLH-2.5ZG	12	93	3550	4	7.6	Y160M1-2H	11
40CLH-2ZG	6	72	3500	4	3.36	Y112M-2H	4
50CLH-5ZG	24	64.8	3500	5.6	8.1	Y160M1-2H	11
50CLH-5AZG	24	50	3500	5.6	6.33	Y132S2-2H	7.5
50CLH-7ZG	24	42	3500	4.2	4.65	Y132S1-2H	5.5
50CLH-7AZG	21	36	3500	4.2	3.22	Y112M-2H	4
50CLH-4.5ZG	24	72	3550	4.1	8.55	Y160M1-2H	11
50CLH-4.5AZG	18	57.6	3550	5.2	5.6	Y160M1-2H	11
50CLH-3.5ZG	24	93	3550	3.8	15.2	Y160L-2H	18.5
65CLH-8.5ZG	36	42	3500	4.3	6.43	Y132S2-2H	7.5
65CLH-8.5AZG	30	37	3500	4.5	4.88	Y132S1-2H	5.5
65CLH-8ZG	30	14.4	1750	5.6	1.8	Y100L2-4H	3
65CLH-5.5ZG	36	72	3550	4.9	12.2	Y160M2-2H	15
65CLH-5.5AZG	32	64	3550	4.9	9.62	Y160M1-2H	11
65CLH-4.5ZG	36	93	3550	4.2	16.9	Y180M-2H	22
65CLH-4.5AZG	32	82	3550	4.2	13.2	Y160M2-2H	15
65CLH-3G	30	123	3580	5.5	25.7	Y200L1-2H	30
65CLH-2.5ZG	12	42	1750	5.1	5	Y132M-4H	7.5
80CLH-16ZG	60	28	3500	4.5	6.1	Y132S2-2H	7.5

Type	(60Hz    3 φ 440v) main technical parameter					Motor type power Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power Kw
80CLH-11ZG	60	42	3550	5	10.1	Y160M2-2H	15
80CLH-11AZG	54	37	3550	5	8.12	Y160M1-2H	11
80CLH-7ZG	60	72	3550	5.6	18.1	Y180M-2H	22
80CLH-7AZG	52	64	3550	5.6	14.4	Y160L-2H	18.5
80CLH-5.5G	60	93	3580	4.8	25.3	Y200L1-2H	30
80CLH-5.5AG	55	82	3580	4.8	21.2	Y200L1-2H	30
80CLH-5G	72	122	3580	4.8	42.7	Y250M-2H	55
80CLH-5AG	60	115	3580	4.8	33.6	Y225M-2H	45
80CLH-4.5G	60	115	3580	4.8	33.6	Y200L2-2H	37
100CLH-22ZG	110	22	3550	6.5	9.03	Y160M1-2H	11
100CLH-19ZG	120	28	3550	6.5	12.2	Y160M2-2H	15
100CLH-15G	120	42	3550	5.7	19.3	Y180M-2H	22
100CLH-15AG	108	38	3550	5.7	15.7	Y160L-2H	18.5
100CLH-13G	84	42	3550	5.7	13.9	Y160L-2H	18.5
100CLH-13AG	75	38	3550	5.7	11.6	Y160M2-2H	15
100CLH-11G	95	21	1780	4	7.4	Y160M-4H	11
100CLH-10G	120	72	3580	6.5	33.6	Y200L2-2H	37
100CLH-10AG	103	64	3580	6.5	26	Y200L1-2H	30
100CLH-8.5G	84	64	3580	4.2	22.5	Y200L1-2H	30
100CLH-6G	115	108	3580	5.8	47.0	Y250M-2H	55
100CLH-6AG	111	100	3580	5.6	41.8	Y250M-2H	55
100CLH-6BG	96	89	3580	5.5	32.8	Y200L2-2H	37
125CLH-19G	180	42	3580	7	28.2	Y200L2-2H	37
125CLH-19AG	160	38	3580	7	22.7	Y200L1-2H	30
125CLH-13G	240	72	3580	7	60.3	Y280S-2H	75
125CLH-13AG	220	63	3580	7	49	Y250M-2H	55
125CLH-13BG	195	48	3580	7	25.5	Y200L1-2H	30
125CLH-12G	190	72	3580	7	48.4	Y250M-2H	55
125CLH-10G	180	93	3580	7	63.3	Y280S-2H	75
125CLH-10AG	155	82	3580	7	49.4	Y250M-2H	55
125CLH-8G	165	123	3580	6.5	79	Y280M-2H	90
125CLH-13G	240	72	3580	7	60.3	Y280S-2H	75
125CLH-13AG	220	63	3580	7	49	Y250M-2H	55
125CLH-13BG	195	48	3580	7	25.5	Y200L1-2H	30
125CLH-12G	190	72	3580	7	48.4	Y250M-2H	55
125CLH-10G	180	93	3580	7	63.3	Y280S-2H	75
125CLH-10AG	155	82	3580	7	49.4	Y250M-2H	55
125CLH-8G	165	123	3580	6.5	79	Y280M-2H	90

Type	(60Hz    3 φ 440v) main technical parameter					Motor type power Kw		weight Kg
	Capacity m3/h	Head m	Speed r/min	NPSHr m	Shaft power Kw
125CLH-6.5G	180	158	3580	6.5	107.8	Y315M-2H	132
150CLH-26G	240	28	3580	6.5	24.1	Y200L1-2H	30
150CLH-26AG	225	24	3550	6.5	19.6	Y180M-2H	22
150CLH-22G	240	42	3580	7.2	35.2	Y225M-2H	45
150CLH-18ZG	190	20	1780	7.5	12.9	Y160L-4H	15
150CLH-13.5G	215	72	3580	6.5	56.2	Y280S-2H	75
150CLH-13G	240	28	1780	4.5	22.88	Y200L-4H	30
150CLH-13AG	224	25	1780	4.5	19.3	Y180L-4H	22
150CLH-11G	215	93	3580	8.5	74.6	Y280M-2H	90
150CLH-10.5 G	300	45	1780	6	49.1	Y250M-4H	55
150CLH-10G	310	123	3580	6	135.1	Y315L1-2H	160
150CLH-9G	240	46	1780	4	38.1	Y225M-4H	45
150CLH-9AG	216	40	1780	4	31.4	Y225S-4H	37
150CLH-7	240	180	3580	6	165	Y315L2-2H	200
150CLH-7A	216	165	3580	6	138	Y315L1-2H	160
150CLH-7B	192	151	3580	6	110	Y315M-2H	132
150CLH-6G	190	72	1780	6	51	Y280S-4H	75
150CLH-6AG	180	64	1780	6	43	Y250M-4H	55
200CLH-9G	384	46	1780	5.5	63.3	Y280S-4H	75
200CLH-12G	360	42	1780	5.5	51.5	Y280S-4H	75
200CLH-12AG	335	36	1780	5.5	41.6	Y250M-4H	55
200CLH-18G	482	29	1780	5.5	47.58	Y250M-4H	55
250CLH-18G	600	43	1780	5.5	87.8	Y315S-4H	110
250CLH-18AG	600	35	1780	5.5	71.5	Y280M-4H	90
250CLH-18BG	540	28	1780	5.5	56.4	Y280S-4H	75
300CLH-8G	900	140	1780				500
2/40CLH-2G	7	158	3550	4.2	8.9	Y160M2-2H	15
2/40CLH-3G	24	100	3550	4.2	17.2	Y180M-2H	22
2/50CLH-2.5G	42	200	3580	4.2	44.9	Y250M-2H	55
2/65CLH-3.5G	60	172	3580	5	47.6	Y250M-2H	55
2/40CLH-4.5G	9.6	28.5	1750	4	1.87	Y100L1-4H	2.2
3/40CLH-4.5G	9.6	43	1750	4	2.78	Y100L2-4H	3
4/40CLH-4.5G	9.6	57.5	1750	4	3.72	Y132S-4H	5.5
5/40CLH-4.5G	9.6	72	1750	4	4.65	Y132S-4H	5.5
6/40CLH-4.5G	9.6	86	1750	4	5.56	Y132M-4H	7.5
7/40CLH-4.5G	9.6	100	1750	4	6.5	Y132M-4H	7.5
2/65CLH-6	43.2	129	3580	4	27.3	Y200L-2H	37

Our History

Hangzhou Cagon Transmission Technology Co., Ltd. is well-known in the shipbuilding

field. It is a highly recognized ship power system integrator, top manufacturer and

professional service provider in the industry. In the marine sector, it is a well-deserved

leader in external fire protection and anti-corrosion engineering. Since its inception, the

company has been committed to the passion and determination to deepen its presence

in the shipbuilding industry, anchored on the goal of "one-stop service", and made every

effort to create a power system overall solution that meets the diverse needs of users. At

the same time, it focuses on the cutting-edge needs of marine equipment, ingeniously

develops new anti-corrosion coatings, and uses superb engineering construction skills to

protect the quality of marine equipment in all aspects

 

 

OurProduct

OurProductsincludesthefollowing:

MarineTransmission

MarineDieselEngine

Marine/ShipPropellers

Marine/ShipGearBox

MarineFire-FightingPumps

HighPrecisionReducer

BoatEngine&TransmissionRepairs

ShipPowerSystemModifications

SolutionsforMarinePropulsionSystems

TransmissionDeviceforAgriculturalMachinery

TransferCase(ForAutomobiles)

TransferCaseforIndustrialTransmission

 

ProductApplication

Productuse:

CargoShip,Containerships,BulkCarriers,TankerVessels,ReeferVessels,Offshore

Vessels,PassengerVessels,NavalShips,,FishingVessels,ResearchVessels

Grain-harvestingmachinery,corn-harvestingmachinery,balers,knotters,film-

wrappingmachines,paddy-fieldsprayers,orchardsprayers,etc.Trucks,off-road

vehicles,lorries,constructionvehicles.Engineeringandindustrialfields.

Relevantqualifications

 

ProductionEquipment

Boxprocessing:

Patentedappearance,beautifulandcompact;

Precisioncastingofresinsandmetalmoldtoensurestrengthandnoleakage;

One-timeclampingandprocessinginthemachiningcenter,usingimportedCNC

machiningcentertoensuremachiningaccuracy;

Double-processprofessionalcleaningandphosphatingequipment,cleaning(removing

ironchips),andrust(corrosion)prevention.

Gearproductionline:

Gears(axles)usepreheatingtreatmentprocess

Usehigh-qualitylow-carbonalloysteelforcarburizingandquenchingtoensure

strength

Useturningcenter,CNChigh-speedgearhobbingmachine,CNCforminggeargrinding

machineforprocessingtoensureaccuracy

Gearsuseproprietaryshapingandnoisereductiontechnology

Usecleaningandphosphatinglineforcleaningandcorrosionprotection

Heattreatmentprocessing:

Pre-heattreatmentprocessisusedtoensurethestabilityofmaterialstructure;

Fullyenclosedheattreatmentmulti-purposefurnaceisusedtoensurehardnessand

strengthandeffectivelycontroldeformation;

Strongshotpeeningtechnologyisusedtoincreasestressandeffectivelyimprovethe

bendingstrengthoftoothrootbymorethan20%

Assemblyline:

Station-typeflexibleassemblyline;

Circularchainspraydryingline;

CNCdoublemeshinginstrumentassemblyfullinspection;

100%onlineproductoperationinspection

Test machine ensure high quality goods



OverallSolutionforShipPropulsionSystem

Shiptype:scientificresearchship

Shiplength:37meters

Shipwidth:7.8meters

Designeddraft:2.0meters

Designedspeed:12knots

Lubricationmethod:Oillubrication

Propulsionmethod:Singleenginesinglepropelleradjustablepropeller

Shipowner:ZhejiangOceanUniversity

Shipyard:QingdaoGeshidaShipbuildingCo.,Ltd.

Shiptypefeatures:Thisshipisascientificresearchship.Thepropellerbladesarespecially

designedaccordingtothedifferentspeedsrequiredbydifferentscientificresearchmodes,

andadvancedHFseriespropellerhubsareused.Forthisproject,weprovideacomplete

setofshippropulsionsystemsincludingmainengine,gearbox,shaftgenerator,high

elasticcoupling,shaftsystemandanalysis,sterntube,adjustablepropeller,remote

controlsystem,hydraulicsystem,etc.

Brief Introduction to Antirust Material Spray Painting Technology
 

Characteristics of the protective coating formed by this technology

 

1. Excellent adhesion between the coating and the metal substrate.
2. Wide applicable temperature range.
3. Good cathodic disbondment resistance, free of the "cathode screening" effect.
4. Stable electrical insulation to reduce cathodic protection current.
5. Resistant to chemical media corrosion, with good resistance to Cl
6. Similar thermal expansion coefficients of the coating and the steel structure, with good resistance to thermal changes.
7. The coating is easy to repair.

Main performance indices of this technology

 

1. Peak performance of the KsF series coatings: bond strength 100MPa, impact strength > 23J, anti - penetration property at 60ºC (within one year) with the coating resistance remaining constant.
2. Long - distance pipelines can be coated both inside and outside simultaneously, with performance meeting the national anti - corrosion coating standards for fusion - bonded epoxy powder coatings or SY/T0315 - 97 Technical Standard of Fusion Bond Epoxy Coating for Steel Pipeline.
3. Bends of long - distance pipelines can be coated both inside and outside simultaneously, with performance meeting the national anti - corrosion coating standards for fusion - bonded epoxy powder coatings or Q/Fs.J02.15 - 1996 enterprise standard.
4. The drag - reduction coating performance for long - distance pipelines meets the US standard APIRP5L2.
5. The field joint coating performance for long - distance pipelines meets the national anti - corrosion coating standards for fusion - bonded epoxy powder coatings.

Application fields of this technology

 

1. Products for severe corrosion protection, such as high - efficiency corrosion - resistant pumps, wear - resistant pumps, high - efficiency corrosion - resistant fans, corrosion - resistant valves, corrosion - resistant bellows compensators, and seawater filters.
2. Severe corrosion protection for long - distance pipelines of oil, gas, and water.
3. Severe corrosion protection for metal process pipelines of acids, alkalis, and salts.
4. Severe corrosion protection for equipment and structural parts in the chemical engineering and energy industries.
5. Severe corrosion protection for materials in ocean engineering.

Application examples of this technology

 

1. Qinshan Nuclear Power Station
   • Primary loop seawater pump: 20SHF - 19 seawater pump, flow rate 1400m³/h, head 23m, speed 978r/min, 4 sets.
   • Seawater booster pump: 14SH - 90 - 19 seawater pump, speed 1450r/min, 3 sets.
   • Underground seawater pipeline: 4 φ1400 pipelines, about 30m.
   • Bellows expansion joint: 8 units, φ1400×1.2m.
   • Seawater cooling pipe in the steam turbine building: seawater booster pump outlet pipe φ600×12m and tees, tee joints of φ325 - φ525mm, totally 260m.
2. Shenyang Automation Research Institute, Chinese Academy of Sciences
   Key parts of the underwater robot developed by the institute, such as underwater motors, underwater manipulator oil cylinders, and underwater tools, adopted the special KsF coating technology and were successfully used on Nanhai drilling platform Exploration 3 of China West Petroleum Company.

Effect of KsF spray - painting anticorrosion technology on marine pumps

Factory seawater simulation test:
Two 50cL - 30 marine vertical centrifugal pumps were used for the contrast test. The base material of their main parts was the same (cast silicon brass, ZCuZn16Si4). One pump's body, cover, impeller, and gland were treated with KsF severe - corrosion - protection spraying (average coating thickness 0.45mm), and the other was not. The test medium was simulated seawater (11.62kg sea salt added to 0.33m³ fresh water, weight ratio 3.52%). The unpainted pump started the test on September 14, 2004, and the painted one on October 14, 2004, with continuous 24 - hour operation required.
The two pumps were disassembled for the first check on December 2, 2004, reassembled, and continued the test. On March 7, 2005, By then, the unpainted pump had run for 4000h and the painted one for 3380h. The inspection results were as follows:
 

1. No mechanical seal leakage, abnormal vibration, or noise occurred during the operation of the two pumps.
2. The impeller rings and seal rings of the two pumps had slight normal wear.
3. The rubbing surfaces of the mechanical seals of the two pumps had normal wear.
4. The coating surface of the painted pump's body, cover, impeller, and gland was smooth and intact, with no seawater corrosion, coating wear, or peeling. In contrast, the surface of the unpainted pump's body, cover, and impeller had corrosion, which was significantly aggravated compared to the first check.

picture of body, cover and impeller of the painted pump after test






picture of body, cover and impeller of the unpainted pump after test


 

Centrifugal Pump Operation Manual: 

 

1. Fundamental Operating Principle

Centrifugal pumps convert rotational energy from an impeller into kinetic energy, generating centrifugal force to move fluids. Proper selection and operation depend on understanding this hydrodynamic principle and its relationship to pump performance curves.

2. Pump Selection Criteria

Key parameters for centrifugal pump specification include:

• Flow Rate (Q) - Required volumetric capacity (m³/h or GPM)

• Total Dynamic Head (TDH) - Net pressure differential accounting for static lift, friction losses, and system resistance

• Fluid Properties - Viscosity, specific gravity, temperature, and chemical compatibility with wetted materials

• Net Positive Suction Head (NPSH) - Critical to prevent cavitation (NPSH> NPSH+ safety margin)

3. Pre-Installation Requirements

• Foundation - Rigid mounting base with vibration-damping provisions (grouted sole plates or isolation pads)

• Alignment - Laser-aligned shaft coupling within 0.05mm tolerance (per ANSI/HI standards)

• Piping -

  • Suction line: Short, straight runs with eccentric reducers (flat-top orientation)

  • Discharge: Install check valve and isolation gate valve

  • Support independent piping loads to prevent nozzle strain

4. Operational Monitoring Protocols

Parameter	Normal Range	Corrective Action if Deviated
Discharge Pressure	±10% of BEP	Check for clogging/valve position
Bearing Temp	<70°C (158°F)	Relubricate or replace bearings
Vibration Velocity	<4.5 mm/s RMS (ISO 10816)	Verify alignment/impeller balance
Current Draw	Within motor nameplate	Assess fluid density/motor condition

5. Preventive Maintenance Program

• Daily:

  • Inspect mechanical seal/gland packing for leaks

  • Monitor lube oil levels (oil-lubricated bearings)

  • Log pump performance metrics

• Monthly:

  • Grease bearings (quantity per OEM specs)

  • Flush seal chambers on abrasive services

  • Conduct motor megohm testing

• Annual:

  • Replace wear rings if clearance exceeds 0.5mm

  • Perform dynamic balancing (ISO 1940 G6.3 standard)

  • Hydrotest casing at 1.5x design pressure

6. Advanced Troubleshooting Guide

Symptom	Root Cause	Resolution
No liquid delivery	Priming failure/NPSH deficiency	Vent air, elevate suction source
Excessive noise	Cavitation or bearing failure	Increase NPSH, replace bearings
Seal leakage >5 drops/min	Seal face wear or misalignment	Reface/seal replacement, realign
Power surge	Impeller blockage	Disassemble and clean flow passages