Non-clogging cast iron impeller

 

Semi-open impeller, can be divided into single-blade or double-blade impeller, the blade can cut off general foreign objects, preventing solid objects from blocking.

Product Overview

HWG type cutting sewage submersible pump (hereinafter referred to as the pump), consists of three parts: pump, seal, and motor. The motor is located at the top of the pump and is a single-phase and three-phase asynchronous motor. A double-end face mechanical seal is used between the pump and the motor, and an "O"-type oil-resistant rubber sealing ring is used for static sealing at each fixed stop seal. This series of pumps introduces and absorbs advanced foreign technologies, using an open single-blade impeller, with a novel and unique structure, its non-clogging performance is excellent, it can cut and tear long fibers, plastic paper tapes, and toilet paper, etc., ensuring the pump remains unobstructed, making it an ideal sewage pump.

 

Applications

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

 

Features

● Unique crushing blade design, effectively crushes various foreign objects;

● Motor with temperature-type thermal protector: prevents the pump from burning out during abnormal operation such as overload and jamming;

● Motor uses B-class insulation;

● Uses a double mechanical seal structure.

 

Operating Conditions

The pump operates continuously and normally under the following conditions.

● Power frequency is 50Hz, voltage is single-phase AC 220V, three-phase AC 380V;

● Voltage fluctuation range is ±10% of the rated value;

● Operating ambient temperature 0~40℃, the temperature of the conveyed medium should not exceed +40℃;

● The PH value of the conveyed medium is between 4~10;

● Density of the conveyed medium ≤1.3x10 ³kg/m³;

● Submersion depth does not exceed 5m;

● The solid content ratio of solid particles in the medium does not exceed 3%.

 

Model Meaning

 

Performance Curve

 

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
50HWG10-12-1.1(F)	10	12	20	17	1.1	3000	220/380	7.3/2.7	51	Full Head
50HWG15-15-1.5(F)	15	15	33	21.5	1.5	3000	220/380	9.5/3.6	51	Full Head
50HWG6-20-1.5	6	20	15	30	1.5	3000	220/380	9.5/3.6	51	>12
50HWG6-28-2.2	6	28	15	38	2.2	3000	220/380	14/5.1	51	>18
50HWG6-35-3	6	35	15	45	3	3000	380	6.7	51	>22

HWG type cutting sewage submersible electric pump (hereinafter referred to as electric pump), composed of pump, seal, and motor.