YW stainless steel submerged sewage pump

YW Stainless Steel Vertical Sump Sewage Pump

Model NO. YW Stainless Steel Vertical Sump Sewage Pump

Pump material: Cast Iron, Stainless Steel

Inlet & Outlet Size: DN25 – DN500

Flow Range: 8 – 2600 m³/h

Head Range: 7 – 50 m

Motor Power: 0.75 – 250 kW

Speed: 740 – 2930 r/min

Voltage: 220V / 380V / 415V / 440V / 460V

What is YW Stainless Steel Vertical Sump Sewage Pump？

Engineered by combining international technology with local operating conditions, the YW series is a high-efficiency vertical pump created for demanding waste disposal. Functioning as a non-clogging vertical sump pump, it delivers remarkable energy efficiency and anti-winding capability when handling media laden with solid particles and long fibers. Built using corrosion-resistant construction, this stainless steel centrifugal pump performs reliably in harsh industrial drainage setups and serves as a heavy-duty pump for septic tankapplications.

To optimize fluid transfer, this vertical pump incorporates a unique single-channel or double-channel impeller structured like a curved pipe with uniform cross-sectional dimensions. Coupled with a precision mechanical seal and an optimized volute casing, the entire vertical sump pump operates with high hydraulic efficiency. Furthermore, dynamic and static balance testing ensures smooth, low-vibration performance throughout the service life of this stainless steel centrifugal pump.

Features

Large-Flow Anti-Clogging Design: Increases sewage passage capacity, allowing this vertical pump to easily pass solid particles up to 50% of the pump diameter and fibrous material up to 5 times the pump diameter.
High Efficiency & Energy Savings: Rational structural integration with a perfectly matched motor minimizes power consumption for this vertical sump pump.
Double Tandem Mechanical Seal: Equipped with hard, wear-resistant tungsten carbide seals, enabling the pump for septic tank duties to run safely and continuously for over 8,000 hours under standard conditions.
Compact & Portable Layout: Offers a compact design, small footprint, easy mobility, and simple installation for the stainless steel centrifugal pump.
Automatic Level Control Cabinet: Can be configured with an optional liquid level control system that manages automatic start and stop cycles without requiring dedicated attendance.
Submerged Vertical Structure: Built as a vertical pump where the pump body operates submerged in liquid (0.5–7 meters submerged depth), eliminating venting or priming concerns during startup.
Reliable Coupling System: The motor and shaft are linked via a precision coupling to ensure smooth shaft power transfer and maintain a high safety margin for the vertical sump pump.
Motor Overload Reduction: Operates safely across its specified head range to prevent the motor from overloading during duty as a pump for septic tank.
Flexible Mounting Options: Supports single-pipe or double-pipe mounting layouts, with support plates available in circular plate or square plate configurations for this stainless steel centrifugal pump.

Applications

Discharge of heavily polluted industrial and commercial wastewater.
Drainage systems of municipal sewage treatment plants.
Sewage drainage stations in residential areas.
Drainage stations for civil air defense systems.
Sewage discharge of hospitals and hotels.
Municipal engineering and construction sites.
Supporting auxiliary machinery for exploration and mining.
Rural biogas digesters and farmland irrigation.
Water supply devices of tap water plants.

Operating Conditions

The medium temperature does not exceed 60°C, the medium density is 1–1.3 kg/dm³, and the pH value is within the range of 5–9.
Under normal circumstances, the pump must be used within the operating head range to ensure that the motor is not overloaded. If it needs to be used within the full head range, it should be specified separately when ordering so that the manufacturer can custom-build it.
During operation, the pump motor current shall not exceed the rated current of the motor.
If there are special requirements such as temperature or medium, please specify the detailed information of the conveyed medium when ordering so that the manufacturer can build it accordingly.

Structure

YW Series Stainless Steel Vertical Sump Sewage Pump Exploded Assembly View | JPZX

No.	Model	Caliber (mm)	Flow Rate (m³/h)	Head (m)	Power (kW)	Speed (r/min)	Efficiency (%)	Head Range (m)
1	25YW8-22-1.1	25	8	22	1.1	2825	38.5	10-22
2	32YW12-15-1.1	32	12	15	1.1	2825	40	8-15
3	40YW15-15-1.5	40	15	15	1.5	2840	45.1	6-15
4	40YW15-30-2.2	40	15	30	2.2	2840	48	15-30
5	50YW20-7-0.75	50	20	7	0.75	1390	54	3-7
6	50YW10-10-0.75	50	10	10	0.75	1390	56	4-10
7	50YW20-15-1.5	50	20	15	1.5	2840	55	6-15
8	50YW15-25-2.2	50	15	25	2.2	2840	56	10-25
9	50YW18-30-3	50	18	30	3	2880	58	15-30
10	50YW25-32-5.5	50	25	32	5.5	2900	53	17-32
11	50YW20-40-7.5	50	20	40	7.5	2900	55	20-40
12	65YW25-15-2.2	65	25	15	2.2	2840	52	6-15
13	65YW37-13-3	65	37	13	3	2880	55	6-13
14	65YW25-30-4	65	25	30	4	2890	58	15-30
15	65YW30-40-7.5	65	30	40	7.5	2900	56	20-40
16	65YW35-50-11	65	35	50	11	2930	60	35-50
17	65YW35-60-15	65	35	60	15	2930	63	40-60
18	80YW40-7-2.2	80	40	7	2.2	1420	52	3-7
19	80YW43-13-3	80	43	13	3	2880	50	5-13
20	80YW40-15-4	80	40	15	4	2890	57	6-15
21	80YW65-25-7.5	80	65	25	7.5	2900	56	12-25
22	100YW80-10-4	100	80	10	4	1440	62	4-10
23	100YW110-10-5.5	100	110	10	5.5	1440	66	5-10
24	100YW100-15-7.5	100	100	15	7.5	1440	67	8-15
25	100YW85-20-7.5	100	85	20	7.5	1440	68	10-20
26	100YW100-25-11	100	100	25	11	1460	65	10-25
27	100YW100-30-15	100	100	30	15	1460	66	12-30
28	100YW100-35-18.5	100	100	35	18.5	1470	65	15-35
29	125YW130-15-11	125	130	15	11	1460	62	7-15
30	125YW130-20-15	125	130	20	15	1460	63	10-20
31	150YW145-9-7.5	150	145	9	7.5	1440	63	4-9
32	150YW180-15-15	150	180	15	15	1460	65	5-15
33	150YW180-20-18.5	150	180	20	18.5	1470	75	8-20
34	150YW180-25-22	150	180	25	22	1470	76	12-25
35	150YW130-30-22	150	130	30	22	1470	75	15-30
36	150YW180-30-30	150	180	30	30	1470	73	15-30
37	150YW200-30-37	150	200	30	37	1480	70	13-30
38	200YW300-7-11	200	300	7	11	970	73	3-7
39	200YW250-11-15	200	250	11	15	970	74	4-11
40	200YW400-10-22	200	400	10	22	1470	76	5-10
41	200YW450-13-30	200	450	13	30	1470	73	6-13
42	200YW250-15-18.5	200	250	15	18.5	1470	72	7-15
43	200YW300-15-22	200	300	15	22	1470	73	8-15
44	200YW250-22-30	200	250	22	30	1470	71	12-22
45	200YW350-25-37	200	350	25	37	1480	75	10-25
46	200YW400-30-45	200	400	30	45	1480	70	13-30
47	250YW600-9-30	250	600	9	30	980	74	3-9
48	250YW600-12-37	250	600	12	37	1480	78	5-12
49	250YW600-15-45	250	600	15	45	1480	75	6-15
50	250YW600-20-55	250	600	20	55	1480	73	8-20
51	250YW600-25-75	250	600	25	75	1480	73	12-25
52	300YW600-12-45	300	600	12	45	900	76	5-12
53	300YW500-15-45	300	500	15	45	980	70	7-15
54	300YW800-15-55	300	800	15	55	980	73	8-15
55	300YW600-20-55	300	600	20	55	980	75	10-20
56	300YW800-20-75	300	800	20	75	980	78	12-20
57	300YW950-20-90	300	950	20	90	980	80	11-20
58	300YW1000-25-110	300	1000	25	110	980	82	12-25
59	350YW1100-10-55	350	1100	10	55	980	84.5	4-10
60	350YW1500-15-90	350	1500	15	90	980	82.5	6-15
61	350YW1200-18-90	350	1200	18	90	980	83.1	8-18
62	350YW1100-28-132	350	1100	28	132	740	83.2	15-28
63	350YW1000-36-160	350	1000	36	160	740	78.5	20-36
64	400YW1500-10-75	400	1500	10	75	980	82.1	3-10
65	400YW2000-15-132	400	2000	15	132	740	85.5	6-15
66	400YW1700-22-160	400	1700	22	160	740	82.1	10-22
67	400YW1500-26-160	400	1500	26	160	740	83.5	12-26
68	400YW1700-30-200	400	1700	30	200	740	83.5	15-30
69	400YW1800-32-250	400	1800	32	250	740	82.1	17-32
70	500YW2500-10-110	500	2500	10	110	740	82	2-10
71	500YW2600-15-160	500	2600	15	160	740	83	4-15
72	500YW2400-22-220	500	2400	22	220	740	84	8-22
73	500YW2600-24-250	500	2600	24	250	740	82	10-2

Q1: What are the ideal operating conditions and installation scenarios for the YW series vertical sump pump?

The YW series is specifically engineered for stationary pit/sump drainage in industrial plants, chemical processing facilities, and high-temperature wastewater systems. Because the motor remains above the pit cover while only the pump casing and pipe are submerged, it is ideal for handling wastewater at temperatures up to 120°C, aggressive chemicals, or applications where submersible electrical cables are prohibited.

Q2: What submerged depth options are available, and how is the long shaft supported against vibration?

The standard submerged depth ranges from 0.5 meters to 5 meters, custom-manufactured based on pit dimensions. To ensure steady performance over long spans, the rigid drive shaft is stabilized by intermediate guide bearings and a heavy-duty mounting plate, keeping vibration to a minimum during continuous duty.

Q3: Can the YW series handle high-temperature industrial wastewater or acidic corrosive fluids?

Yes. Because the motor operates in ambient air above the pit, the pump wet-end can be built from 304, 316, or Duplex stainless steel to resist aggressive chemicals. Additionally, without the thermal limitations of submerged motor seals, it safely handles elevated fluid temperatures that standard submersible pumps cannot withstand.

Q4: How does the hydraulic design handle solid debris and stringy waste at the sump bottom?

The pump inlet features a submerged suction bell paired with an anti-clogging single/double-vane impeller. Liquid and solids are directly drawn from the very bottom of the pit and discharged smoothly through the vertical riser pipe, preventing sludge buildup and clogging at the sump floor.

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