H7N and H75 are high-performance machined mechanical seals specifically designed as reliable replacements for industry-standard models including BURGMANN H7N, BURGMANN H75, and MTU DR1-HS. These seals are engineered to handle demanding industrial environments, featuring a robust wave spring design. We offer flexible material combinations, such as SiC and Carbon, to ensure chemical and thermal compatibility. Furthermore, we can customize material specifications or design entirely new seal types to perfectly match our clients' unique technical requirements.
- Versatile Replacement: Direct replacement for BURGMANN H7N, H75, and MTU DR1-HS seals.
- Advanced Sealing Faces: Features Rotary Rings (SiC/TC/Carbon) and Stationary Rings (Carbon/SiC/TC).
- High-Quality Secondary Seals: Equipped with VITON or Encapsulated Rings for superior fluid containment.
- Durable Metallic Components: Metal parts are crafted from high-grade SUS304 or SUS316 stainless steel.
- Specialized Wave Spring: Utilizes 17-7PH, SUS304, or SUS316 wave springs for consistent face loading.
- High-Pressure Handling: Engineered to operate efficiently under pressures up to 2.5MPa.
- High-Speed Capability: Designed to handle rotational speeds reaching up to 20m/s.
- Wide Temperature Range: Reliable performance in environments ranging from -20°C up to +200°C.
| Seal size d(mm) | d0 | d1 | d6 | d7 | l2 | l1k |
| 25 | 30 | 45 | 34 | 40 | 36.0 | 47.5 |
| 28 | 33 | 48 | 37 | 43 | 38.5 | 50.0 |
| 30 | 35 | 50 | 39 | 45 | 38.5 | 50.0 |
| 33 | 38 | 55 | 42 | 48 | 38.5 | 50.0 |
| 35 | 40 | 57 | 44 | 50 | 38.5 | 50.0 |
| 38 | 43 | 60 | 49 | 56 | 38.5 | 52.5 |
| 40 | 45 | 62 | 51 | 58 | 38.5 | 52.5 |
| 43 | 48 | 65 | 54 | 61 | 38.5 | 52.5 |
| 45 | 50 | 67 | 56 | 63 | 38.5 | 52.5 |
- Ideal for high-pressure industrial pumping systems requiring seals up to 2.5MPa.
- Suitable for high-speed machinery involving rotational speeds up to 20m/s.
- Widely used in chemical processing and fluid management where temperature extremes (up to 200°C) occur.
- Perfect for applications requiring a direct replacement for standard Burgmann and MTU mechanical seal configurations.