I. Requirements Analysis

In today's world of frequent natural disasters, especially during flood emergencies, rapid and effective drainage and rescue operations are crucial. Traditional pumps require manual priming before startup, which is not only time-consuming and labor-intensive but can also delay critical rescue efforts during emergencies. Therefore, we have specifically designed a high-efficiency self-priming centrifugal pump for flood control and rescue operations. This pump addresses the aforementioned challenges, ensuring swift deployment for drainage tasks at the earliest opportunity to minimize disaster losses.

II. Product Features

1. Instant Self-Priming Function: Utilizing advanced self-priming technology, it requires no pre-filling with water and can draw water directly, with a water draw time not exceeding 60 seconds, significantly enhancing emergency response efficiency.

2. Powerful drainage capability: With a maximum flow rate of 195 cubic meters per hour and a maximum head of up to 45 meters, it effortlessly handles various complex drainage environments.

3. High-passability design: The impeller features an open design capable of passing particles up to 45mm in diameter, effectively preventing clogging and adapting to water containing impurities.

4. Easy Maintenance: The front cover of the pump housing can be opened for convenient daily inspection and maintenance, minimizing downtime.

5. Compact Design: The vehicle features a compact overall size, facilitating transportation and deployment, and is suitable for operations in confined spaces.

III. Application Scenarios

1. Urban Flood Drainage: Rapidly remove standing water from streets, tunnels, underground garages, and other affected areas.

2. Farmland Drainage: Rapidly drain accumulated water from farmland after heavy rainfall to protect crops.

3. Disaster Relief Operations: As critical equipment for emergency response and disaster relief, it enables rapid deployment to mitigate the impact of disasters.

4. Construction Site Drainage: Removal of accumulated water from construction sites, mines, and similar locations to ensure construction safety.

IV. Technical Specifications

Serial Number	Project Name	Technical Specifications
1	Type	Self-priming centrifugal pump
2	Inlet and outlet diameter	≥100mm (≥4 inches)
3	Maximum flow rate	≥195 cubic meters per hour
4	Maximum Head	≥45米
5	Cavitation margin	≤2 米
6	By particle diameter	≥45mm
7	Impeller	Open impeller
8	Connection Method	The flywheel is connected to the pump shaft, and the pump body is connected to the flywheel housing.
9	Self-priming time	≤60 seconds
10	Pump Housing Design	The front cover can be opened.
11	Overall vehicle dimensions	Overall length ≤ 1560 mm (including tow bar); Overall width ≤ 1050 mm; Overall height ≤ 1200 mm.
12	Fuel tank capacity	≥30L
13	Engine oil capacity	≥1.7L
14	Form	Twin-cylinder gasoline engine
15	Cylinder bore	≥75.5mm
16	Power	≥23HP
17	Rotational speed	≥3600 RPM
18	displacement	≥627 CC
19	fuel consumption	≤6.5L
20	Startup Method	Electric start and manual pull start
21	Type	Oil-free vacuum pump
22	Total weight	≤300kg
23	Suction tube	PVC + resin material specifically for water pumps, length ≥6m, diameter ≥100mm
24	Connector	2 roll-formed 45 steel (or superior) pump-specific French connectors ≥100mm
25	Filter screen	Cast iron water pump dedicated filter screen, ensuring clean water quality and extending pump body lifespan.