1Product Introduction:

KDZYseriesTrailer typeThe self-priming diesel water pump unit is a structurally novel product developed based on repeated research of similar technologies at home and abroad.executeGB/T 5657-1995 standard, the engine shall comply with GB1147.1 national standard.This pump set integrates self-priming and non clogging sewage discharge, using a diesel engine driven axial reflux external hybrid type, and through the unique design of the pump body and impeller flow channel, there is no need to install a bottom valve or fill water during use. The pump set can suck and discharge liquids containing large solid particles and long fiber impurities, and can be widely used in municipal sewage and flood control projects, agricultural irrigation, etc. This pump set has a simple structure, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving, and easy use and maintenance.

IIproduct overview:

nProduct model:KDZY

nBrief introduction: Traffic50-120m3/h, lift 8-80m

nStructure: Mobile, Fixed

nDiesel engine brand: ShangchaiDongfeng Cummins, Deutz, Fiat, Ryan, Weifang Kefa, etc.

nMain applications: municipal sewage engineering, flood control and drought resistance engineering, farmland irrigation engineering, etc.

IIIUsage conditions:

1) Environmental temperature ≤ 50℃, medium temperature≤80℃.

2) The pH value of the medium is 6-9 for cast iron material.

3) The medium density shall not exceed 1240kg/m3.

4) The self-priming height cannot exceed5.5Mi,Continuous water absorption height≤6，Suction piperoadlength≤12Rice.

4Model Description:

mobilediesel engine driven self-priming pump：KDZY 300 – 800 - 14 Lift:14m

Traffic:800m3/h

Caliber:300mmMobile diesel engine self-priming pump

5Product physical picture:

VIProduct Configuration：

Product Configuration Diagram

7Structural reference diagram and working principle:

The KDZY series diesel engine self-priming pump is mainly composed of a diesel engine, coupling, pump head, impeller, rear cover, mechanical seal, pump shaft, bearing seat, inlet valve, gas-liquid separation pipe, water inlet valve, inlet and outlet pipes, etc. The structure of the pump is shown in the above figure.

The working principle of the pump: There is a liquid storage chamber inside the pump body, which is connected to the reflux hole above The circulation hole below is connected to the working chamber of the pump, forming an axial reflux external hybrid system of the pump. After the pump stops working, a certain volume of liquid is stored in the pump chamber. When the pump starts, the stored liquid in the pump is ejected upwards with air under the action of the impeller. The liquid flows back to the working chamber through the grid of the gas-liquid separation tube, and the gas is discharged outside the pump, forming a certain degree of vacuum inside the pump and achieving self-priming.

8Technical performance parameters:

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