NBR Nitrile Rubber · High Vacuum Sealing Performance · Specialized Sealing Components for Marine Vacuum Pumps
I. Descripción general del producto
The HZT037219210~HZT037221602 O-Ring Seal Set is the core sealing component for the HZT 15MBD marine vacuum sewage pump. Made of NBR nitrile rubber, this series of O-rings is specifically designed for the gas-liquid isolation system of vacuum pumps. They ensure reliable sealing and leak-proof operation in high-pressure, high-humidity, and corrosive environments.
This seal assembly covers key sealing areas of the pump body, including:
* Between the suction chamber (HZT029150320) and the suction chamber cover (HZT029150310);
* Between the end flange (HZT029150601) and the pressure chamber (HZT029150901);
* Between the shaft seal (HZT038201500) and the shaft seal end flange (HZT029150391);
* The connection area with the rotor housing (HZT029150800);
* As well as the outlet chamber and vacuum pipe interface.
II. Material Characteristics and Performance Advantages
Material: NBR (Nitrile Rubber)
1. High Sealing Performance
NBR rubber has excellent elasticity and resilience, maintaining seal integrity under alternating vacuum and positive pressure conditions.
2️⃣ Media Resistance
Suitable for a variety of media, including black water, gray water, lubricating oil, condensate, and seawater.
Excellent resistance to oil, salt spray, acids, and alkalis.
3️⃣ High Temperature and Aging Resistance
Operating temperature range: -30°C to +120°C; no cracking or hardening after long-term use.
4️⃣ Precision Fit
O-ring dimensions are precisely dimensioned and aligned with the tolerances of all HZT vacuum pump components, ensuring that compression and sealing gaps remain within ideal ranges during assembly.
5️⃣ Vacuum Deformation Resistance
Maintains a stable cross-sectional shape even under strong negative pressure, preventing flattening or displacement.
III. Compatible Components and Assembly Locations
| Material Code | Name | Functional Location |
| ———— | ———– | ———– |
| HZT037219210 | O-ring | Shaft seal assembly and end flange seal |
| HZT037219220 | O-ring | Suction chamber cover seal |
| HZT037219250 | O-ring | Pressure chamber and end flange seal |
| HZT037219200 | O-ring | Flap valve base and suction chamber seal |
| HZT037221602 | O-ring | Rotor housing and pressure chamber seal |
These seals form the leak-proof foundation of the entire unit’s gas-liquid isolation system and are among the most critical consumable parts during the assembly and maintenance of HZT vacuum sewage pumps.
IV. Applications
* 🚢 Marine Vacuum Sewage System
* 🧱 Black & Grey Water Pump System
* 🧰 Marine Vacuum Toilet Unit
* ⚙️ Industrial Vacuum Fluid Pumps
* 🛳 Marine Pump Spare Parts
V. Product Features
✅ Made of NBR nitrile rubber, it is oil-resistant, corrosion-resistant, and vacuum-resistant.
✅ Precisely matches the full range of HZT15MBD components, ensuring complete sealing.
✅ Anti-aging and long service life, suitable for long-term operation.
✅ Easy to replace, suitable for OEM and maintenance markets.
✅ All seals are airtight and vacuum leak tested.
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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