DN25-DN200 Vertical Cast Iron Single-pipe Submersible Sewage Pump

Model NO. PWSYW

Flow Range：8-400m³/h
Head Range：5-60m
Inlet/Outlet Range：DN25-DN200
Motor Power：0.75-45kw
Submersible Depth：0.5-5m

Quantity

Vertical Cast Iron Single-pipe Submersible Sewage Pump

The PWS YW vertical cast iron single-pipe sewage pump is a robust cast iron water pump engineered for handling sewage with solids, fibers, and high viscosity. Featuring a single-pipe support design, it immerses the pump body in liquid while keeping the motor dry above the surface. This sewage submersible pumps offer clog-resistant operation, exceptional wear resistance, and low-maintenance efficiency, ideal for municipal, industrial, and construction wastewater systems. A compact, durable solution for tough sewage challenges.

Technical Features

Efficient Anti-Clogging Performance

Single or double vane impellers, together with oversized flow channels and anti-block hydraulic structures, stop blockages reliably, making the pump perfect for sewage rich in solid impurities.

Monolithic Long Shaft Layout

Built with a single seamless steel pipe bracket for a simple layout and easy installation. Its standard submersible depth is 3 meters, and custom longer shafts are available upon request.

Product Advantage

Wide Range to Match Diverse Requirements

Its flow range spans 8 to 400 cubic meters per hour, fully accommodating sewage treatment projects of all sizes. The available head ranges from 5 to 60 meters to satisfy various vertical lifting height demands.

Broad Medium Compatibility

This pump works with wastewater featuring a specific gravity between 1 and 1.3 kg/dm³ and a maximum fluid temperature of 70°C. It can pass solid particles up to 30% of the pump’s diameter and fibrous substances as long as 1.5 times the pump diameter.

Vertical Sump Pump vs Submersible Pump

	Vertical Sump Pump	Submersible Pump
Motor Position	Located above the liquid level (dry environment outside the tank/pit).	Fully submerged in the liquid along with the pump body.
Pump / Impeller Position	Submerged at the bottom of the pit, connected to the motor via an extended vertical shaft.	Submerged at the bottom of the pit, directly coupled to the motor casing.
Sealing Requirements	Standard mechanical seals or packing glands (simpler seal design as the motor remains dry).	Heavy-duty double mechanical seals with an oil chamber to protect the motor from fluid ingress.
Installation & Footprint	Requires mounting flange/plate directly over the top opening of the pit; needs precise alignment for the shaft.	Simple"drop-in"installation; often uses an auto-coupling guide rail system for fast placement.

FAQ

Q1: Can a vertical sump pump run dry?
A: Short periods of dry running may be tolerated depending on the bearing and bushing materials, but continuous dry running should be avoided to prevent overheating and mechanical seal/bearing damage.

Q2: How is the pump shaft supported over long lengths?
A: For longer immersion depths, intermediate sleeve bearings (bushings) are installed along the column pipe to stabilize the shaft and prevent vibration.

Q3: Do vertical sump pumps require priming?
A: No. Since the pump casing and impeller are fully submerged in the liquid, the pump is always primed and ready to start instantly.

PWS’s Vertical Cast Iron Submersible Sewage Pump is engineered for heavy-duty performance in sewage submersible pump applications, offering robust reliability as a cast iron water pump designed to handle raw sewage, solids, and abrasive wastewater in residential, commercial, or municipal systems. The following ensure compliance with industry standards for sewage submersible pumps, balancing power, efficiency, and longevity in demanding submerged environments.

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

PWS’s Vertical Cast Iron Submersible Sewage Pump is engineered with precision-crafted components to deliver reliable performance in harsh sewage submersible pump applications, where durability and resistance to corrosion and abrasion are critical. As a heavy-duty cast iron water pump designed for submerged operation in wastewater, sludge, or debris-laden fluids, its core parts—from the corrosion-resistant casing to the anti-clog impeller—are optimized to minimize maintenance and maximize uptime in residential, commercial, or municipal sewage systems.

No.	Item Description	No.	Item Description	No.	Item Description
1	Motor	8	Support Pipe / Column Pipe	15	Impeller Nut
2	Coupling	9	Lower Bearing	16	Impeller
3	Motor Stool / Motor Base	10	Upper Mechanical Seal	17	Wear Ring / Seal Ring
4	Upper Bearing	11	Oil Chamber	18	Pump Casing
5	Upper Bearing Housing	12	Mechanical Seal	19	Discharge Pipe
6	Mounting Plate / Base Plate	13	Back Cover Plate	20	Base Frame / Baseplate
7	Extension Shaft	14	Key

The above are partial installation dimensions for reference. Please contact us for more details

PWS’s Vertical Cast Iron Submersible Sewage Pump performance curves provide critical insights into optimizing the operation of sewage submersible pumps in residential, commercial, or municipal wastewater systems. As a rugged cast iron water pump designed for submerged handling of solids, debris, and abrasive fluids, these curves illustrate the pump’s hydraulic behavior—including flow rate and head pressure—under varying conditions, enabling engineers to select the right model for applications like lift stations, stormwater sumps, or industrial effluent transfer.

Performance Coverage Chart for YW Series Submerged Sewage Pump

Proper installation of PWS’s Vertical Cast Iron Submersible Sewage Pump is critical to ensuring reliable performance in sewage submersible pump applications, such as basement drainage, wastewater lift stations, or municipal sewage systems. As a robust cast iron water pump designed for submerged operation in debris-laden environments, this model requires precise alignment, secure anchoring, and piping configurations to prevent clogging, motor overheating, or premature failure. Key considerations include submersion depth, discharge angle optimization, and electrical connection integrity to maximize hydraulic efficiency and operational longevity.

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WENZHOU PUMP WISE FLUID EQUIPMENT CO., LTD.

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Sales Manager：+39 389 949 9067

Sales Representative：+39 344 7395079
Sales Manager WhatsApp：+86 19518108981

winnie@pumppioneer.com

NO. 8, NORTH ROAD, PUMP AND VALVE INDUSTRIAL ZONE, DONGOU HETIAN INDUSTRIAL ZONE

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Account Holder Name: PUMP WISE FLUID EQUIPMENT CO., LTD

Currency of Receipt: EUR GBP PLN

Bank Name: Banking Circle S.A.

Bank Location: Luxembourg

Bank Address: 2 Boulevard de la Foire L-1528 Luxembourg Luxembourg

Account Type: checking

Swift Code: BCIRLULL (BCIRLULLXXX, if 11 characters are required)

DN25-DN200 Vertical Cast Iron Single-pipe Submersible Sewage Pump

Vertical Cast Iron Single-pipe Submersible Sewage Pump

Technical Features

Efficient Anti-Clogging Performance

Monolithic Long Shaft Layout

Product Advantage

Wide Range to Match Diverse Requirements

Broad Medium Compatibility

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