The HZT037302200 flap valve rubber is a key component of the 15MBD marine vacuum sewage pump system.
This part is installed in the vacuum pump’s check valve mechanism and works in conjunction with the HZT029151001 flap valve base to form a one-way sealing opening and closing mechanism, preventing sewage backflow and mixing with gas and liquid, thereby maintaining efficient operation and stable pressure in the vacuum system.
I. Product Structure and Design Principle
The HZT037302200 is made of highly elastic EPDM (Ethylene Propylene Diene Monomer) and is compression molded with precise dimensional control, resulting in a smooth surface, uniform thickness, and excellent durability.
During vacuum pump operation, sewage enters the discharge chamber through the impeller, and the valve disc cyclically opens and closes in response to the vacuum differential and fluid impact.
HZT’s engineering design optimizes the disc shape, enabling rapid response at low pressure differentials. This ensures the vacuum pump can quickly restore system vacuum during startup, suction, and discharge.
The disc edge features a rounded seal structure, which fits snugly against the valve seat. This not only prevents backflow but also reduces opening and closing noise and mechanical wear.
This structure maintains a stable seal during long-term operation, requiring less frequent maintenance and significantly improving system reliability.
II. Material Properties and Durability
EPDM elastomers are widely used in marine environments due to their excellent resistance to trace amounts of seawater, acids and alkalis, aging, and UV rays.
The EPDM material used in HZT037302200 boasts high molecular stability and excellent pressure recovery properties, maintaining sealing elasticity within a temperature range of -40°C to +120°C.
Compared to traditional rubber components, its salt spray aging resistance is over 40% longer, effectively extending the service life of the entire unit.
HZT’s EPDM formula is specifically developed for marine environments, ensuring long-term sealing even in conditions of chlorine, high humidity, high salinity, and frequent vibration.
During the vacuum pump’s operating cycle, the valve disc opens and closes dozens of times per minute. The HZT037302200’s structure and material design can withstand fatigue testing of millions of openings and closings without deformation or cracking.
III. Applications and Compatible Systems
The HZT037302200 flap valve is designed specifically for the 15MBD Marine Vacuum Sewage Pump and is compatible with leading international systems:
* ✅ JETS Vacuum Toilet Sewage System
* ✅ Other vacuum collection and discharge systems (Vacuum Discharge Units)
It is suitable for a variety of applications, including domestic sewage treatment on ships, vacuum toilets, offshore platform sewage disposal, and wastewater collection equipment at docks and ports.
During system maintenance or replacement, HZT series accessories are directly interchangeable with EVAC/JETS models. Installation requires no structural or interface modifications, significantly reducing maintenance effort and spare parts costs.
IV. System Integration and Accessory Combinations
The HZT037302200 and the following accessories form a complete check seal system:
* HZT029151001 — Flap Valve Base
* HZT037291600 — O-Ring
* HZT037291200 — Suction Chamber Cover
* HZT029150302 — Suction Chamber
V. Technology and Brand Advantages
HZT specializes in the design and manufacture of marine vacuum pump systems. Our product line includes a full range of components, including vacuum pump units, pulverizer blades, valve bodies, seals, and connecting pipes.
All EPDM rubber parts have passed salt spray resistance, sealing performance, and cyclic fatigue tests.
HZT products have also passed compatibility tests with international systems such as JETS and EVAC, ensuring they meet international standards for sealing performance and reliability.
The HZT037302200, a key component, provides stable non-return sealing performance for the entire system and is essential for the reliable operation of the HZT15MBD vacuum pump series.
6. 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 – Flap Valve Base
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 – Hexagon Socket Sealing Plug
8. HZT029151900 – Lock Nut
9. HZT029150400 – Rotating Knife
10. HZT029150500 – Stationary Knife
11. HZT029152401 – Half-Threaded Hexagon Bolt with Spring Washer M10x170
12. HZT029150601 – End Flange
13. HZT029150701 – Rotor (Impeller)
14. HZT029150800 – Rotor Housing
15. HZT029151800 – Spacer Sleeve
16. HZT038201500 – Shaft Seal
17. HZT034507420 – Hose Clip
18. HZT034507500 - Manguera
19. HZT029150391 - Brida del extremo del sello del eje
20. HZT029150901 – Pressure Chamber (Water Outlet Chamber)
21. HZT029150310-02 – Suction Type Cover (Sheet Metal)
22. HZT029150450 – Knife Set
23. HZT/- – Motor – 2.2KW – Marine Motor
24. HZT029015001 - Bomba de vacío 15MBD
25. HZT023280061 - Base de válvula de mariposa
26. HZT037302100 - Disco de válvula Flap
27. HZT023280091 - Placa de presión
28. HZT023280050 - Tapa de la cámara de aspiración
29. HZT037219260 – O-Ring
30. HZT023280070 – Flange Fasteners
31. HZT023280080 - Brida
32. HZT023280040 - Cámara de aspiración
33. HZT020202900 - Enchufe
34. HZT020203100 – Rotating Knife
35. HZT020203100 – Stationary Knife
36. HZT021201000 – Knife Holder
37. HZT036202010 – Half-Threaded Hexagon Bolt with Spring Washer M12X220
38. HZT023200210 - Placa final de la cámara de aspiración
39. HZT023219000 - Carcasa del rotor
40. HZT021265401 - Rotor (Impulsor)
41. HZT021217000 – Plug RG 3/8”
42. HZT023219000 – Pressure Chamber (Water Outlet Chamber)
43. HZT023260400 – Distance Sleeve
44. HZT038218900 - Junta del eje
45. HZT023280030 – Flange for Shaft Sealing
46. HZT023280050-02 – Suction Chamber Cover (Sheet Metal)
47. HZT/- – Motor – 3.0KW – Marine Motor
48. HZT023280010 – 25MBA Vacuum Pump
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