I. Descripción general del producto
The HZT029151800 Spacer Sleeve is a critical axial limit and geometric positioning component in the drivetrain of the HZT 15MBD Marine Vacuum Sewage Pump.
This component is installed between the rotor (HZT029150701) and the pressure chamber (HZT029150901). Its primary function is to control assembly depth and vacuum chamber clearance, ensuring precise coaxial rotation of the rotor within the HZT029150800 rotor housing. Despite its small size, this component plays a crucial role in determining the dynamic balance stability, seal life, and vacuum performance of the entire unit.
II. Structure and Assembly Relationship
1. Assembly Components:
Rotor (HZT029150701), Spacer Sleeve (HZT029151800), Seal Assembly, Pressure Chamber (HZT029150901).
2. Structure:
Monolithic Cylinder, with a slip-fit inner bore and CNC-finished flat end faces.
3. Assembly Function:
* Controls the axial spacing between the rotor end and the seal;
* Provides slip-fit positioning to prevent interference stress;
* Ensures the perfect coaxiality and rotational stability of the entire system;
* Provides a support and positioning reference for the seal assembly.
III. Materials and Manufacturing Process
1. Material: Marine Grade 316SS, corrosion-resistant and chloride-resistant. 2. Manufacturing Method: A seamless, thickened stainless steel tube is precision-turned in one step using CNC machining.
Ensuring consistent geometric accuracy across inner and outer diameters, end faces, and length.
3. Surface Finish: Retains the original metal turning texture (machined finish), without electrolytic or polishing treatment, embodying the essence of the HZT process.
4. Tolerance Standard: Internal bore fit achieves IT6 slip-fit accuracy, ensuring smooth assembly and precise spacing.
5. Inspection Items: Outer diameter, inner diameter, length, coaxiality, end face perpendicularity, and surface roughness.
IV. Working Principle and Functional Description
1. Axial Limiting: Standardized length control ensures constant vacuum chamber volume and prevents negative pressure fluctuations.
2. Coaxial Support: Works in conjunction with the rotor (HZT029150701) and rotor housing (HZT029150800) to ensure low eccentricity and vibration of rotating components. 3. Seal Life Protection: Maintains the correct compression of the seal assembly to prevent seal aging or leakage due to assembly stress.
4. Dynamic Balancing: Combined with the rotor’s dynamic balancing (G2.5 grade) structure, it reduces operating noise and energy consumption.
V. Assembly Compatibility and Series Compatibility
1. Compatible with the entire HZT 15MBD Marine Vacuum Sewage Pump series.
2. Similar in structure to the 25MBA series, but with different dimensions and interfaces, it is not interchangeable.
3. Can be used as an OEM spare part for repairs and system upgrades.
VI. Quality and Testing Requirements
* Full-Dimensional Inspection: Comprehensive inspection of outer diameter, inner diameter, length, and coaxiality.
* Assembly Verification: Assembly testing with the HZT029150701 rotor and HZT029150901 pressure chamber. * Surface Quality: No knife marks, burrs, or oxidation spots; end surface roughness ≤ Ra1.6.
* Corrosion Resistance Verification: Salt spray test for ≥ 240 hours to ensure the protective properties of 316 stainless steel.
VII. Maintenance and Replacement Recommendations
1. When replacing the rotor (HZT029150701) or seal assembly, it is recommended to simultaneously inspect the spacer sleeve (HZT029151800).
2. If there is abnormal sliding clearance, end surface wear, or scratches, replace the entire set to avoid system eccentricity or decreased vacuum performance.
3. Maintain a dry environment during storage to prevent surface contamination and oxidation.
8. Asistencia técnica y suministro
HZT ofrece servicios completos de equipamiento, diseño de sistemas y accesorios:
* Soluciones integrales para bombas de vacío marinas y estaciones de bombeo de vacío de aguas residuales
* Sistema OEM y asistencia a astilleros
* Suministro rápido de piezas y servicios de reparación
📧 Correo electrónico de asistencia técnica: SJDT1199@gmail.com
🌐 Página oficial: www.vacuumtoiletparts.com
1. HZT029151001 - Asiento de válvula de mariposa
2. HZT037302200 - Disco de válvula de mariposa
3. HZT029151003 - Placa de presión
4. HZT029150310 - Tapa de la cámara de aspiración
5. HZT037219210 - Junta tórica
6. HZT029150320 - Cámara de aspiración
7. HZT020202900 - Junta de vaso hexagonal
8. HZT029151900 - Contratuerca
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10. HZT029150500 - Cuchilla estacionaria
11. HZT029152401 - Tornillo hexagonal de media rosca con arandela elástica (M10x170)
12. HZT029150601 - Brida final
13. HZT029150701 - Rotor (impulsor)
14. HZT029150800 - Carcasa del rotor
15. HZT029151800 - Espaciador
16. HZT038201500 - Junta del eje
17. HZT034507420 - Abrazadera de manguera
18. HZT034507500 - Manguera
19. HZT029150391 - Brida de sellado del eje
20. HZT029150901 - Cámara de presión (Cámara de descarga de agua)
21. HZT029150310-02 - Tapa de aspiración (placa metálica)
22. HZT029150450 - Conjunto cortador
23. HZT/- - Motor - 2.2kW - Motor marino
24. HZT029015001 - Bomba de vacío 15MBD
25. HZT023280061 - Asiento de válvula Flap
26. HZT037302100 - Disco de válvula Flap
27. HZT023280091 - Placa de presión
28. HZT023280050 - Tapa de la cámara de aspiración
29. HZT037219260 - Junta tórica
30. HZT023280070 - Sujetador de brida
31. HZT023280080 - Brida
32. HZT023280040 - Cámara de aspiración
33. HZT020202900 - Enchufe
34. HZT020203100 - Cuchilla giratoria
35. HZT020203100 - Cuchilla estacionaria
36. HZT021201000 - Portacuchillas
37. HZT036202010 - Perno hexagonal de media rosca (con arandela elástica) M12x220
38. HZT023200210 - Placa final de la cámara de aspiración
39. HZT023219000 - Carcasa del rotor
40. HZT021265401 - Rotor (Impulsor)
41. HZT021217000 - Tapón RG 3/8
42. HZT023219000 - Cámara de presión (Cámara de descarga)
43. HZT023260400 - Manguito de aislamiento
44. HZT038218900 - Junta del eje
45. HZT023280030 - Brida de sellado del eje
46. HZT023280050-02 - Tapa de la cámara de aspiración (chapa metálica)
47. HZT/- - Motor - 3,0 kW - Motor marino
48. HZT023280010 - Bomba de vacío 25 MBA
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