I. Product Positioning (Model + Function + Support)
The HZT023219000 rotor housing is a key fixture in the HZT 25MBA marine vacuum discharge pump. Its core function is to create a stable high-vacuum chamber and provide precise coaxial rotation for the rotor HZT021265401. This housing mates with multiple components within the 25MBA series:
* Front: Mate with the HZT023200210 End Plate Suct. Chamber (suction side)
* Rear: Mate with the HZT023280030 Flange (shaft seal end flange/rear flange)
* Axial sealing/locating: Mate with the HZT038281900 Shaft Seal (shaft seal) and the HZT023260400 Distance Sleeve (distance sleeve)
* This housing has a specific geometry and interface for the 25MBA and is not interchangeable with the 15MBD series.
II. Materials and Manufacturing
* Material: Marine-grade 316 stainless steel, offering corrosion resistance, strength, and fatigue resistance, suitable for marine and shore-based environments subject to high humidity, salt spray, and oily contaminants. * Manufacturing: CNC machining of the entire blank (inner bore, end face, seal groove, and flange face are all performed in a single process of positioning and finishing), ensuring inner roundness, end face accuracy, and concentricity.
* Surface: The inner wall is smooth, enhancing the stability of the gas-liquid mixed flow; the outer surface can be sandblasted or electropolished upon order to enhance corrosion resistance and cleanability.
* Dimensional Stability: Controlled assembly datums ensure low vibration and high sealing performance even when mated with the dynamically balanced rotor (HZT021265401).
III. Structure and Technical Features
1. High Vacuum Sealed Chamber
O-ring seals are reserved on the inner bore and end face, working in conjunction with the HZT038281900 (shaft seal) and corresponding O-rings to create a stable negative pressure chamber.
2. Coaxial and Axial Positioning
Compatible with the HZT023260400 (spacer sleeve) to control axial clearance; the flange surface of the HZT023280030 (rear flange) ensures coaxiality between the motor shaft, rotor, and housing.
3. Heavy-Duty/High-Flow Compatibility
Compatible with the increased rotor length and spiral geometry of the HZT021265401, it is suitable for vacuum pumping applications requiring higher flows and torques (multi-chamber systems and long-distance pipeline networks) than the 25MBA.
4. Maintenance-Friendly
Standardized flange and seal design facilitates periodic disassembly and inspection; it is compatible with other 25MBA series components, minimizing downtime.
IV. Application Areas
* Marine & Yacht Vacuum Discharge / Sanitation Systems (Blackwater/Graywater Vacuum Collection)
* Offshore Platforms: Offshore Vacuum Collection Unit, Rig Sanitation Module
* Ports/Shore-Based Systems: Harbor/Port Vacuum Station, Ship-to-Shore Discharge
* Land-Based Vacuum Toilet Systems: Land-Based Vacuum Toilet / Sewage Collection (Residential, Campsite, Scenic Area, Transportation Hub)
> Combined with HZT021265401 (Rotor), HZT023280030 (Flange), HZT023200210 (End Plate), HZT038281900 (Shaft Seal), etc.
> This constitutes the key assembly of the 25MBA pump head, maintaining extremely low noise, low vibration, and high vacuum in high-load operating environments both at sea and on land.
V. Selection and Maintenance Recommendations (Simple and Practical)
* Specificity: Compatible only with HZT 25MBA geometry and interfaces; not interchangeable with 15MBD.
* Assembly: It is recommended to strictly follow the 25MBA process diagram to control axial clearance and seal ring compression, and verify coaxiality.
* Maintenance: Periodically inspect O-rings and shaft seal HZT038281900 for wear and aging. If abnormal vibration is detected, verify rotor dynamic balancing and bearing condition.
* Retrofit/Replacement: In EVAC/JETS system upgrades and retrofits, this product can be used as a housing base component for 25MBA solutions, provided that the interfaces and flange surfaces are compatible with adapters.
VI. Technical Support and Supply
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
9. HZT029150400 - Cuchilla giratoria
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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