NBR Nitrile Rubber · High Vacuum Sealing Performance · Specialized Sealing Components for Marine Vacuum Pumps
I. Descrição geral do produto
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. Apoio técnico e fornecimento
A HZT fornece equipamento completo, conceção de sistemas e serviços acessórios:
* Soluções completas para bombas de vácuo marítimas e estações de bombagem de vácuo para águas residuais
* Sistema OEM e suporte de estaleiro
* Fornecimento rápido de peças e serviços de reparação
📧 Email de apoio técnico: SJDT1199@gmail.com
🌐 Sítio Web oficial: www.vacuumtoiletparts.com
1. HZT029151001 - Sede da válvula de lamelas
2. HZT037302200 - Disco da válvula de lamelas
3. HZT029151003 - Placa de pressão
4. HZT029150310 - Tampa da câmara de aspiração
5. HZT037219210 - Anel de vedação
6. HZT029150320 - Câmara de aspiração
7. HZT020202900 - Vedante de encaixe hexagonal
8. HZT029151900 - Porca de bloqueio
9. HZT029150400 - Lâmina rotativa
10. HZT029150500 - Lâmina estacionária
11. HZT029152401 - Parafuso hexagonal de meia rosca com anilha de pressão (M10x170)
12. HZT029150601 - Flange de extremidade
13. HZT029150701 - Rotor (impulsor)
14. HZT029150800 - Caixa do rotor
15. HZT029151800 - Espaçador
16. HZT038201500 - Vedante do veio
17. HZT034507420 - Braçadeira da mangueira
18. HZT034507500 - Mangueira
19. HZT029150391 - Flange de vedação do veio
20. HZT029150901 - Câmara de pressão (câmara de descarga de água)
21. HZT029150310-02 - Tampa de aspiração (placa metálica)
22. HZT029150450 - Conjunto do cortador
23. HZT/- - Motor - 2.2kW - Motor marítimo
24. HZT029015001 - Bomba de vácuo de 15MBD
25. HZT023280061 - Sede da válvula de lamelas
26. HZT037302100 - Disco da válvula de lamelas
27. HZT023280091 - Placa de pressão
28. HZT023280050 - Tampa da câmara de aspiração
29. HZT037219260 - O-ring
30. HZT023280070 - Fixador de flange
31. HZT023280080 - Flange
32. HZT023280040 - Câmara de aspiração
33. HZT020202900 - Ficha
34. HZT020203100 - Lâmina rotativa
35. HZT020203100 - Lâmina estacionária
36. HZT021201000 - Suporte da lâmina
37. HZT036202010 - Parafuso hexagonal de meia rosca (com anilha de mola) M12x220
38. HZT023200210 - Placa da extremidade da câmara de aspiração
39. HZT023219000 - Carcaça do rotor
40. HZT021265401 - Rotor (Impulsor)
41. HZT021217000 - Ficha RG 3/8
42. HZT023219000 - Câmara de pressão (câmara de descarga)
43. HZT023260400 - Manga de isolamento
44. HZT038218900 - Vedante do veio
45. HZT023280030 - Flange de vedação do veio
46. HZT023280050-02 - Tampa da câmara de aspiração (chapa metálica)
47. HZT/- - Motor - 3,0 kW - Motor marítimo
48. HZT023280010 - Bomba de vácuo de 25 MBA
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