Centrifugal Slurry Pump Leak Reason and Solution

The pump works for a long time during the process of running. Which will lead to the leakage due to the corrosion, abnormal process fluctuations and wrong meratial selection etc.

Reason of leakage:
Improper sealing materail selection.
2. The sealing damage because of Empty work, Cavitation or Long time suppress pressure.
3. Lubrication falure lead to the bearing damage and damage the sealing.
4. Sealing damange caused by the working conditions frequent changes or adjustment.

Protection measures:

1, The pump with a reliable seal (such as double-sided seal).
2, DCS add emergency stop pumping facilities.
3, Add the emergency shut-off valve before the pump.
4, Video surveillance.
5, Combustible gas alarm (or smoke Alarm, flame detectors, etc.).
6, Fire facilities at site.
7, Regular inspection or inspection.

Contact Person: Katherine Hou
katherine@naipump.com
Cellphone/ WeChat/ WhatsApp: +86-15028111051

Expeller Seal Slurry Pump Parts

Slurry Pump with Expeller Seal

Expeller also called Back impeller. It is an open impeller mounted in the opposite direction of the shaft to the opposite side of the impeller rear cover. The main effect is to balance the axial force and reduce the pressure of the sealed chamber.

When the pump operation and the shaft rotates. The liquid in the expeller will rotate together. The rotating liquid will produce an outward centrifugal force, which against the liquid flowing to the mechanical seal and reduce the pressure. Also prevent the solid flow into the mechanical seal. It reduce the wear of mechanical seal grinding block to extend its service life.

However, there also a disadvantage to use expeller seal. The expeller also consume part of the energy-3%. But we can reduce this consume with reasonable design.

Contact Person: Katherine Hou

Shijiazhuang Naipu Pump Co., Ltd     

Tel: +86-311-83802338 Fax: +86-311-87162902 

Cellphone/ WeChat/ WhatsApp: +86-15028111051 

Skype: katherine_naipump URL: www.naipump.com 

Email: katherinehoucn@hotmail.com & katherine@naipump.com 

 

FG10137A05 Impeller for River Sand Pump Machine

Sand Gravel Pump Impeller part code: DG4137, EG6137, FG8137, FG10137, GG12137, GG16137, HG18137, HG20137, HG24137, UG28137A, FGH6137, FGH8137, GGH10137, HG14137, HGH16137...

Katherine Hou

Cellphone/ WeChat/ WhatsApp: +86-15028111051 

Skype: katherine_naipump Email:  katherine@naipump.com 

FAHF6083S42 Horizontal Froth Slurry Pump Part Throatbush

6AHF Horizontal Froth Pump and Spare Parts.

Katherine Hou

Shijiazhuang Naipu Pump Co., Ltd     

Cellphone/ WeChat/ WhatsApp: +86-15028111051 Skype: katherine_naipump 

URL: www.naipump.com Email: katherinehoucn@hotmail.com & katherine@naipump.com 

E4083R55 Throatbush for 6/4AH Slurry Pump Rubber Spare Parts

6/4 Pump Rubber Materail Spare Parts-wet end parts. 

katherine@naipump.com 

 Standard Metal: A05, A07, A12, A33, A49, A61 and etc. Standard Rubber R08, R26, R33, R55, S01, S21, S31, S42 and etc. Special materail: U01, EPDM, PU, CR, Hastelloy 276-C, Ferralium and etc.

75C-L Open Impeller Light Duty Mining Slurry Pumps

Contact Person: Katherine Hou

Shijiazhuang Naipu Pump Co., Ltd     

Tel: +86-311-83802338 Fax: +86-311-87162902 

Cellphone/ WeChat/ WhatsApp: +86-15028111051 

Skype: katherine_naipump URL: www.naipump.com 

Email: katherinehoucn@hotmail.com & katherine@naipump.com 

Pump Type Performance Parameters

Type	Max.  Power Kw	Clear Water Performance					Impeller
		Capacity  m³/hr	Head/m	Speed/rpm	Efficiency %	NPSH m	Nos of Vane	Diameter mm
20A-L	7.5	2.34-10.8	6-37	1400-3000	30	3.5-8	4	152.4
50B-L	15	16.2-76	9-44	1400-2800	55	3.5-8	5	190
75C-L	30	18-151	4-45	900-2400	57	3-6	4	229
100D-L	60	50-252	7-46	800-1800	60	2-3.5	4	305
150E-L	120	115-486	12-51.5	800-1500	65	2-6	4	381
200E-L	120	234-910	9.5-40	600-1100	64	3-6	4	457
250F-L	120	396-1425	8-30	500-800	77	2-10	5	550
300S-L	560	468-2538	8-60	400-950	79	2-10	5	653
350S-L	560	650-2800	10-59	400-840	81	3-10	5	736
400ST-L	560	720-3312	7-51	300-700	80	2-10	5	825
450ST-L	560	1008-4356	9-48	300-600	80	2-9	5	933
550TU-L	1200	1980-7900	10-50	250-475	86	4-10	5	1213
20A-LR	7.5	2.16-9	7-32	1600-3000	30		3	152.4
50B-LR	15	12.6-60	6-38	1200-2600	48		3	190
75C-LR	30	22-144	9-43	1000-2200	60	3-5	4	229
100D-LR	60	61-252	17-70	800-1600	65	2-5	6	305
150E-LR	120	137-486	12-51.5	800-1300	65	2.5-5.5	5	381
200E-LR	120	216-990	9.5-40	500-1100	74		5	457
250F-LR	260	324-1314	8-30	500-800	70	5--10	5	550
300S-LR	560	432-1900	7-41	400-800	81	3-8	5	653
350S-LR	560	720-2844	10-41	400-700	86	3-7	5	736
400ST-LR	560	756-3312	7-37.5	300-600	85	2-8	5	825
450ST-LR	560	1080-4356	9-40	300-550	87	3-10	5	933
650U-LR	2000	2520-9108	10-39	200-350	86	2-8	5	1370
750UV-LR	2000	3240-13860	8-41	150-300	86	2-8	5	1643