Overview of pipeline type unobstructed sewage pump

The GW type vertical pipeline sewage pump is easy to install and has a wide range of applications. It can be used as a general pipeline pump for pressurized water supply in high-rise buildings, as well as for transporting sewage containing granular fibers. In addition to transporting sewage, it is also suitable for use as a drainage pump, filtration flushing condensation circulation pump, etc. This series of pumps adopts a unique impeller structure and mechanical seal, which can effectively transport solids and long fibers. Compared with traditional impellers, the impeller of this pump adopts a single channel or double channel form, which is similar to a curved pipe with the same cross-sectional size and has very good flow characteristics. Coupled with a reasonable volute chamber, the pump has high efficiency and the impeller has undergone dynamic and static balance tests, making the pump operate without vibration.

Scope of application of pipeline type unobstructed sewage pump

The GW series pipeline type unobstructed sewage pump is suitable for the discharge of severely polluted wastewater in factories and commercial areas, sewage discharge stations in main residential areas, water distribution systems in urban sewage treatment plants, drainage stations in civil air defense systems, water supply equipment in waterworks, sewage discharge in hospitals and hotels, municipal engineering construction sites, mining supporting machines, rural biogas digesters, farmland irrigation and other industries. It can also be used to transport granular sewage and pollutants, as well as clean water and weakly corrosive media.

Service conditions for pipeline type unobstructed sewage pump

A. The operating environment temperature of the pipeline sewage pump is ≤ 40 ℃, and the humidity is ≤ 95%; Altitude ≤ 1000 meters.

B. The medium temperature shall not exceed 60 ℃, and the medium density shall be 1-1.3kg/dm3.

C. The range of use for cast iron material is from pH 5 to 9.

D. Stainless steel material can be used with general corrosive media.

E. The altitude of the usage environment should not exceed 1000 meters. If it exceeds the above conditions, it should be mentioned when placing an order to provide you with more reliable products.

Note: If the user has special requirements for temperature, medium, etc., please specify the detailed information of the conveying medium when ordering, so that our unit can provide more reliable products.

Product characteristics of pipeline type unobstructed sewage pump

1. The pump and motor are directly connected and coaxial, belonging to the electromechanical integration product, with a compact structure and stable performance.

2. The design of anti clogging hydraulic components for large flow channels greatly improves the ability of pollutants to pass through, effectively passing through 5 times the fiber material of the pump diameter and solid particles with a diameter of about 50% of the pump diameter.

3. Reasonable design, reasonable matching motor, high efficiency, low noise, and significant energy-saving effect.

4. The mechanical seal adopts hard and wear-resistant tungsten carbide, which has the characteristics of durability and wear resistance, and can ensure the safe and continuous operation of the pump for more than 8000 hours.

5. The pump is a vertical structure, with the inlet and outlet centerlines on the same horizontal line, and the inlet and outlet flange specifications are the same, making installation and disassembly very convenient.

6. Small footprint, no need to build a computer room, can save a lot of infrastructure costs; By adding protective covers to the fan blades of the motor, the entire machine can be operated outdoors.

The significance of pipeline type unobstructed sewage pump model

　　

The GW type pipeline sewage pump is easy to install and has a wide range of applications. It can be used as a general pipeline pump for pressurized water supply in high-rise buildings, as well as for transporting sewage containing granular fibers. In addition to transporting sewage, it is also suitable as a drainage pump, filtration flushing condensation circulation pump, etc.

Serial Number	Model number	Caliber (mm)	Flow rate (m3/h)	Head (m)	Speed (r/min)	Power (kw)	Efficiency （%）	Pump electrical controller	Automatic coupler with WQ
1	25GW8-22-1.1	25	8	22	2825	1.1	38.1	QZD-1.1	/
2	32GW12-15-1.1	32	12	15	2825	1.1	40	QZD-1.1	/
3	40GW15-15-1.5	40	15	15	2840	1.5	45.1	QZD-1.5	40
4	40GW15-30-2.2	40	15	30	2840	2.2	18	QZD-2.2	40
5	50GW20-7-0.75	50	20	7	1390	0.75	54	QZD-0.75	40
6	50GW10-10-0.75	50	10	10	1390	0.75	56	QZD-0.75	50
7	50GW20-15-1.5	50	20	15	2840	1.5	55	QZD-1.5	50
8	50GW15-25-2.2	50	15	25	2840	2.2	56	QZD-2.2	50
9	50GW18-30-3	50	18	30	2880	3.0	58	QZD-3.0	50
10	50GW25-32-5.5	50	25	32	2900	5.5	53	QZD-5.5	50
11	50GW20-40-7.5	50	20	40	2900	7.5	55	QZD-7.5	50
12	65GW25-15-2.2	65	25	15	2840	2.2	52	QZD-2.2	50
13	65GW37-13-3	65	37	13	2880	3.0	55	QZD-3.0	65
14	65GW25-30-4	65	25	30	2890	4.0	58	QZD-4.0	65
15	65GW30-40-7.5	65	30	40	2900	7.5	56	QZD-7.5	65
16	65GW35-50-11	65	35	50	2930	11	60	QZD-11	65
17	65GW35-60-15	65	35	60	2930	15	63	QZD-15	65
18	80GW40-7-2.2	80	40	7	1420	2.2	52	QZD-2.2	65
19	80GW43-13-3	80	43	13	2880	3.0	50	QZD-3.0	80
20	80GW40-15-4	80	40	15	2890	4.0	57	QZD-4.0	80
21	80GW65-25-7.5	80	65	25	2900	7.5	56	QZD-7.5	80
22	100GW80-10-4	100	80	10	1440	4.0	62	QZD-4.0	80
23	100GW110-10-5.5	100	110	10	1440	5.5	66	QZD-5.5	100
24	100GW100-15-7.5	100	100	15	1440	7.5	67	QZD-7.5	100
25	100GW85-20-7.5	100	85	20	1400	7.5	68	QZD-7.5	100
26	100GW100-25-11	100	100	25	1460	11	65	JJ1-11	100
27	100GW100-30-15	100	100	30	1470	15	66	JJ1-26	100
28	100GW100-35-18.5	100	100	35	1460	18.5	65	JJ1-18.5	100
29	125GW130-15-11	125	130	15	1460	11	62	JJ1-11	100
30	125GW130-25-15	125	130	20	1440	15	63	JJ1-15	125
31	150GW145-6-7.5	150	145	6	1470	7.5	63	QZD7.5	125
32	150GW180-15-15	150	180	15	1470	15	65	JJ1-15	150
33	150GW180-20-18.5	150	180	20	1470	18.5	75	JJ1-18.5	150
34	150GW180-25-22	150	180	25	1470	22	76	JJ1-22	150
35	150GW130-30-22	150	130	30	1470	22	75	JJ1-22	150
36	150GW180-30-30	150	180	30	970	30	73	JJ1-30	150
37	150GW200-30-37	150	200	30	970	37	70	JJ1-37	150
38	200GW300-7-11	200	300	7	1470	11	73	JJ1-11	150
39	200GW250-11-15	200	250	11	1470	15	74	JJ1-15	200
40	200GW400-10-22	200	400	10	1470	22	76	JJ1-22	200
41	200GW400-13-30	200	400	13	1470	30	73	JJ1-30	200
42	200GW250-11-15	200	250	15	1470	18.5	72	JJ1-18.5	200
43	200GW300-15-22	200	300	15	1470	22	73	JJ1-22	200
44	200GW250-22-30	200	250	22	1470	30	71	JJ1-30	200
45	200GW350-25-37	200	350	25	1470	37	75	JJ1-37	200
46	200GW400-30-55	200	400	30	1480	55	70	JJ1-55	200
47	250GW600-9-30	250	600	9	980	30	74	JJ1-30	250
48	250GW600-12-37	250	600	12	1480	37	78	JJ1-37	250
49	250GW600-15-45	250	600	15	1480	45	75	JJ1-45	250
50	250GW600-20-55	250	600	20	1480	55	73	JJ1-55	250
51	250GW600-25-75	250	600	25	1480	75	73	JJ1-75	250
52	300GW800-12-45	300	800	12	1480	45	76	JJ1-45	300
53	300GW500-15-45	300	500	15	980	45	70	JJ1-45	300
54	300GW800-15-55	300	800	15	980	55	73	JJ1-55	300
55	300GW600-20-55	300	600	20	980	55	75	JJ1-55	300
56	300GW800-20-75	300	800	20	980	75	78	JJ1-75	300
57	300GW950-20-90	300	950	20	980	90	80	JJ1-90	300
58	300GW1000-25-110	300	1000	25	980	110	82	JJ1-110	300
59	300GW1100-10-55	300	1100	10	980	55	84.5	JJ1-55	300
60	350GW1500-15-90	350	1500	15	980	90	83.1	JJ1-90	350
61	350GW1200-18-90	350	1200	18	980	90	83.2	JJ1-90	350
62	350GW1100-28-132	350	1100	28	740	132	78.5	JJ1-132	350
63	350GW1000-36-160	350	1000	36	740	160	82.1	JJ1-160	350

Installation and use of GW type vertical pipeline sewage pump

Firstly, check if the external fasteners have become loose during transportation.

2. Check if the power supply voltage meets the requirements of the motor nameplate.

3. Connect the power and try to turn it on to see if the impeller rotates in the direction indicated on the pump. If the direction is reversed, simply swap any two-phase wires in the cable. During the test run, the time should not be too long to avoid burning out the seal.

4. Install the pump and start it up for operation. Could you please install the pump foot screws.

Inspection and Maintenance

1. Before using the pump, the insulation resistance of the motor winding to the casing should be checked. If it is lower than 0.5 megaohms, the stator must be dried and the insulation resistance should be increased before use.

If the gap between the impeller and the oil seal at the inlet of the pump body exceeds 2mm, the wear-resistant oil seal should be replaced.

When there is water leakage in the pump seal, the seal should be replaced in a timely manner. When replacing, the static seal should be installed flat and solid first, and then the dynamic seal should be sealed on the shaft.

4. When replacing the impeller, use a puller to pull it out, and do not use a hammer to strike forcefully to avoid damaging the shaft alignment.

Common causes of malfunctions

1. No water output, heavy and high particle size of the liquid being pumped; Blockage of liquid flow channel; Wrong impeller direction; The rod material is sucked into the impeller and gets stuck; The height of the pipeline outlet exceeds the rated head height.

2. Insufficient flow and low head. Low voltage, wrong impeller direction, or worn wear-resistant seal; The heavy particle size of the liquid is too high.

3. Low insulation resistance, humid surrounding environment, and severe mechanical seal leakage.