Product Overview

The WQ(D)-QG submersible sewage pump (hereinafter referred to as the electric pump) consists of three parts: a pump, a seal, and a motor. The motor is located at the top of the electric pump and is a single-phase or three-phase asynchronous motor. The pump is located below the motor and has a semi-open spiral impeller and volute structure, with an alloy cutting blade. The structure is novel and unique, with excellent non-clogging performance, large flow rate, and high wear resistance. A double-end face mechanical seal plus a skeleton oil seal is used between the pump and the motor. The mechanical seal acts as a dynamic seal, and each fixed stop seal uses a "0"-type oil-resistant rubber seal ring as a static seal to ensure the reliable sealing of the pump. The pump shaft is subjected to high-frequency quenching treatment to ensure that the shaft has reliable mechanical strength and improve wear resistance and corrosion resistance. The pump inlet is equipped with a cutting disc. When the impeller rotates at high speed, the cutting disc is fixed to the pump body and does not move. During operation, it can cut and tear long fibers, paper towels, and other debris in the water.

 

Features

● Uses a high-hardness alloy steel spiral impeller, highly wear-resistant, anti-clogging, and anti-winding;

● Equipped with a cutting device that effectively shreds cuttable debris entering the pump;

● Built-in motor temperature-type thermal protector: prevents motor burnout during abnormal operation such as overload and jamming;

● Motor uses B-class insulation;

 

Applications

This series of electric pumps are widely used in municipal sewage treatment, construction projects, hotels, mines, industry, municipal environmental protection, and other places for the discharge of sewage and sludge. It is an ideal equipment for pumping mud, slurry, domestic wastewater, sewage, and excrement containing short fibers, paper scraps, sand, and other fixed particles, as well as rural irrigation and drainage, and pond dredging.

 

Operating Conditions

● Medium temperature does not exceed +40°C;

● Medium PH value is 4-10;

● Solid particle concentration in the medium does not exceed 3%;

● Maximum submergence depth of the pump does not exceed 5m;

● Conveying medium density ≤1.3x10 ³kg/m³;

● Power frequency is 50Hz, voltage is single-phase AC 220V, three-phase AC 380V, voltage fluctuation range is ±10% of the rated value.

 

Model Meaning

Technical Parameters

Model Specifications	Rated Flow m³/h	Rated Head m	Maximum Flow m³/h	Maximum Head m	Rated Power kW	Synchronous Speed r/min	Rated Voltage V	Rated Current A	Pipe Inner Diameter mm	Head Application Range m	Net Weight kg
50WQ(D)10-10-0.75QG	10	10	20	14	0.75	3000	220/380	5.1/2.0	51	Full Head	18.2
50WQ(D)10-12-1.1QG	10	12	25	15.5	1.1	3000	220/380	7.3/2.7	51	Full Head	20.25
50WQ(D)15-15-1.5QG	15	15	33	21	1.5	3000	220/380	9.5/3.6	51	Full Head	21.7
65WQ(D)20-10-1.5QG	20	10	33	20	1.5	3000	220/380	9.5/3.6	64	Full Head	21.8
50WQ15-20-2.2QG	15	20	35	24	2.2	3000	380	5.1	51	>15m	31.8
65WQ25-15-2.2QG	25	15	35	22	2.2	3000	380	5.1	64	Full Head	32.2
80WQ40-10-2.2QG	40	10	60	18	2.2	3000	380	5.1	76	Full Head	34
50WQ15-25-3QG	15	25	45	30	3	3000	380	6.7	51	>20m	/
65WQ35-15-3QG	35	15	45	28	3	3000	380	6.7	64	Full Head	/
80WQ40-15-3QG	40	15	62	26	3	3000	380	6.7	76	Full Head	40.8
65WQ40-18-4QG	40	18	65	28	4	3000	380	8.0	64	Full Head	/
80WQ50-15-4QG	50	15	65	27	4	3000	380	8.0	76	Full Head	/
100WQ80-8-4QG	80	8	90	29	4	3000	380	8.0	102	Full Head	46.8

 

Performance Curve

 

Installation Dimensions

 

Model Specifications	H	H1	L	L1	L2	W	d	DN	D1	D	Flange Thread	n-￠d1
50WQD10-10-0.75QG	465	83	267	100	130	200	51	50	/	/	G2	/
50WQ10-10-0.75QG	465	83	267	100	130	200	51	50	/	/	G2	/
50WQD10-12-1.1QG	484	102	274	105	130	210	51	50	/	/	G2	/
50WQ10-12-1.1QG	484	102	274	105	130	210	51	50	/	/	G2	/
50WQD15-15-1.5QG	499	104	277	105	130	210	51	50	/	/	G2	/
50WQ15-15-1.5QG	499	104	277	105	130	210	51	50	/	/	G2	/
65WQD20-10-1.5QG	499	104	277	105	130	210	64	50	/	/	G2	/
65WQ20-10-1.5QG	499	104	277	105	130	210	64	50	/	/	G2	/
50WQ15-20-2.2QG	550	121	368	120	161	243	51	65	110	140	/	4-￠14
65WQ25-15-2.2QG	550	121	380	120	161	243	64	65	110	140	/	4-￠14
80WQ40-10-2.2QG	553	124	392	120	160	250	76	80	150	190	/	4-￠14
50WQ15-25-3QG	580	127	363	120	159	240	51	50	110	140	/	4-￠14
65WQ35-15-3QG	580	127	378	120	159	240	64	50	110	140	/	4-￠14
80WQ40-15-3QG	584	127	390	120	160	240	76	80	150	190	/	4-￠19
65WQ40-18-4QG	609	129	397	120	178	240	64	80	150	190	/	4-￠19
80WQ50-15-4QG	609	129	410	120	178	240	76	80	150	190	/	4-￠19
100WQ80-8-4QG	609	129	445	120	178	240	102	100	190	210	/	4-￠19

The WQ(D)-QG submersible sewage pump (hereinafter referred to as the pump) consists of three parts: pump, seal, and motor.