Bogman M7N Series
Category:National Standard Seal Series
1. Internal single-end mechanical seal,
2. Multi-spring
3. Non-equilibrium type
Detailed introduction
✅ Core parameters
▶ Material specifications: The sealing end faces can be configured with combinations of silicon carbide, tungsten carbide, graphite, and other materials, offering excellent corrosion and wear resistance, and suitable for a wide range of complex media.
▶ Standard Compliance: Strictly conforms to the international standards EN12756 (DIN24960), featuring excellent interchangeability and compatibility with equipment from multiple brands.
✅ Core Features
▶ High reliability and long service life: The floating stationary ring design allows for automatic wear compensation. Combined with a push-ring locking spring structure, it effectively prevents spring detachment, boasts strong anti-clogging performance, and is well-suited for long-term operation in applications involving particulate-containing media.
▶ Universal and easy to maintain: Reliable transmission, easy installation and maintenance, supports any rotation direction, and is compatible with most rotational orientation requirements—extremely versatile.
✅ Structural features
▶ Compact design: Built-in, single-face structure with multi-spring or butterfly springs, featuring a small footprint and saving installation space.
▶ Stable Transmission: Featuring an unbalanced design, the transmission housing rotates synchronously with the shaft, while the stationary ring is axially positioned to prevent excessive wear of the sealing ring, ensuring more stable operation.
✅ Applicable scenarios
Widely compatible with industrial pumps (boiler feed pumps, circulating water pumps) and chemical pumps; covering industries such as power generation, water conservancy, iron and steel, papermaking, coal chemical engineering, fertilizer production, and aluminum smelting—perfectly meeting the sealing requirements of equipment handling particulate-laden and high-viscosity media.
🔥 Preferred Sealing Solutions for Complex Operating Conditions
Thanks to its core advantages—anti-clogging, corrosion and wear resistance, and wide compatibility—the Bogman M7N series successfully tackles sealing challenges in particle-containing operating conditions. Balancing performance and practicality, it is a reliable sealing solution for complex medium-handling equipment in industrial applications.
✅ Selection and Application Recommendations
▶ Key selection criteria: Precisely match the pump model, shaft diameter, medium characteristics (solids content, acidity/alkalinity), and operating parameters.
▶ Installation highlights: Ensure the mounting surface is clean and properly aligned. Never force installation to avoid damaging the sealing surfaces.
▶ Maintenance and upkeep: Regularly inspect operating conditions and leakage levels, and promptly replace worn parts to ensure stable equipment operation.
Applicable host
Product Features
Use parameters
1. Medium: Oil, water, and other mildly corrosive liquids
2. Operating pressure: 0~1.6 MPa
3. Operating temperature: -50~220°C
4. Linear velocity: ≤20 m/s
Keywords：Bogman M7N Series
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Plan 23
Core positioning: A single-face seal self-flushing solution specifically designed for hot-water pumps. The medium is guided out of the self-sealing cavity, cooled, and then returned to the sealing face, achieving integrated self-circulation for flushing and cooling without the need for additional medium replenishment.
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Plan 53A
Reason for adoption: Isolate the process fluid. Zero discharge of the process fluid.
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Plan 53B
Reason for adoption: Isolation of process liquids; zero discharge of process fluids; pressure exceeding the 53A scheme.
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Plan 53C
Reason for adoption: Isolate the process fluid. Achieve zero discharge of the process fluid. Pressure exceeds the 53A design specification. Dynamically monitor system pressure.
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