1. Vehicle composition: Engine, centrifugal pump, vacuum assist system, trailer, support legs, lifting device, fuel tank, control system, rain-proof and noise-reduction enclosure, inlet pipe, and outlet pipe, etc.
2. Overall dimensions with tow bar extended L×W×H (mm): ≤4250×2000×2200±100; Overall dimensions with tow bar retracted L×W×H (mm): ≥3700×2000×2200±100;
3. Enclosure dimensions L×W×H (mm): ≥2194×1280×1373±100;
4. ▲Noise-reducing rain cover: Made of national standard cold-rolled steel plate, thickness 1.5mm, rust prevention treatment uses acid pickling, phosphating, and electrostatic spraying process; Inside the enclosure, flame-retardant silent cotton is applied; Both sides of the enclosure have maintenance doors, 2 per side; Ventilation holes on both sides, rain-proof louvers directly in front of the engine radiator; Visible window at the control system; Emergency stop buttons on both sides; (The above items require design drawings and physical photos).
5. Total vehicle weight (Kg): ≤2000;
6. Engine type: National III emission standard or higher, water-cooled diesel engine;
7. ▲Engine power (Kw): ≤60;
8. Engine starting method: One-key start; Starting voltage (V): 24;
9. Number of engine cylinders (units): 4;
10. Engine speed (rpm): Adjustable between 800-1800;
11. ▲Pump body is a self-priming centrifugal pump, equipped with water filling port, drain port, and inspection hole (when opened, aligns with impeller center for easy inspection and maintenance); Fastening components are three-jaw quick-release parts, removable without special tools;
12. ▲Water pump and engine connected via cylindrical mechanical seal seat, cylindrical bearing seat, and flange, made of cast iron, integrally cast; Trapezoidal pillars reinforce both sides of the bearing seat; Equipped with shaft grease reserve cavity and automatic grease injection device;
13. ▲Flange added to engine flywheel housing to effectively enhance concentricity between water pump and engine; Flange made of cast iron, integrally cast;
14. ▲Power transmission form: Engine directly drives pump shaft, fixed installation with diesel engine flywheel via multi-plate steel casting coupling;
15. ▲Outlet must be equipped with check valve;
16. ▲Pump casing material: Cast iron;
17. ▲Impeller structure: Two-blade open impeller, good solid particle passage capability;
18. ▲Impeller material: Cast iron;
19. ▲Pump shaft material: 40Cr or better;
20. ▲Inlet: 3×DN150; Outlet: 2×DN150;
21. ▲Maximum flow rate (m³/h): ≥1000;
22. ▲Maximum suction head (m): ≥9;
23. ▲Maximum discharge head (m): ≥25;
24. ▲Passable solid particle diameter (mm): ≥70;
25. Vacuum assist system: Pump body equipped with gas-liquid separation device (material: cast iron); Vacuum pump driven by motor, start/stop controllable;
26. ▲Trailer form: Two-wheel mobile trailer structure, equipped with hand-cranked mechanical lifting guide wheel device; Trailer towing ring forged from alloy steel; Height adjustment device uses precision-forged gear disc, precise meshing, safe and reliable; Towing ring aperture ≥60mm, ring shank diameter ≥20mm; Trailer equipped with hand brake and impact brake; Trailer damping method: Metal torsion bar damping (not leaf spring damping structure); (The above items require design drawings and physical photos); Tires use automotive-specific tires;
27. Number of support legs (units): ≥4; Support force ≥2250Kg; Support legs can be flexibly removed according to usage scenarios;
28. Lifting device: Pump truck equipped with self-balancing lifting points for special emergency rescue environments.
29. Pump truck fuel tank: Welded from square tubes ≥5mm thick, serving as a structural link between pump body, engine, and trailer while fulfilling fuel storage function; Tank capacity (L): ≥175; Tank equipped with liquid level display, filling port, and drain port;
30. Control system: Features monitoring functions for speed, water temperature, etc.; LCD screen size ≥3.5 inches; Control panel includes emergency stop switch, alarm buzzer, speed regulator, etc., with fault alarm and auto-shutdown functions to protect engine safety and lifespan; Controller box adopts weatherproof structural design;
31. Pump body treated with three-layer epoxy resin paint using automotive painting process, enhancing anti-rust performance;
32. Inlet pipe: DN150, length 6 meters/piece × 3 pieces, reinforced plastic pipe capable of withstanding negative pressure 1.0MPa without deformation;
33. Outlet pipe: DN150, length 20 meters/roll × 2 rolls, capable of withstanding pressure 0.6MPa, using coiled drainage hose;
34. Quick coupler set: Includes 5 sets of DN150 Paul couplers, perfect sealing performance;
35. Filter net: Includes 3 DN150 filter nets, ensuring passed particles do not exceed pump's passable particle diameter;
36. Clamps: Includes 8 DN150 clamps, tightening pipelines to prevent leakage;
37. ▲Provide overall vehicle 3D design assembly drawings, pump body assembly production structure drawings, and physical photos;
"▲" indicators are critical parameters; bidding documents must provide test (or inspection) reports issued by third-party testing institutions with qualifications as proof materials; failure to provide will result in negative deviation treatment;
