Bogman H7N Series
Category:National Standard Seal Series
1. Single-end mechanical seal,
2. External spring
3. Balanced type
Detailed introduction
✅ Core Parameters and Performance
Operating parameters: Pressure ≤ 6.0 MPa, temperature resistance: -50℃ to 220℃, linear velocity ≤ 20 m/s; when the shaft diameter is ≤ 100 mm, the axial runout is ±0.5 mm; when the shaft diameter exceeds 100 mm, the axial runout is ±2.0 mm.
Corrosion- and wear-resistant materials: The sealing faces can be configured with combinations such as silicon carbide/graphite or tungsten carbide/tungsten carbide; the base material is stainless steel, providing resistance to moderately corrosive media including water, oils, acids, alkalis, salts, and organic solvents.
High reliability and long service life: The floating stationary ring automatically compensates for wear; the push ring is securely fastened by a spring to prevent detachment, offering strong resistance to blockage and making it particularly well-suited for applications involving solid particles.
✅ Structural features
Single-end face balanced type: Optimizes end-face specific pressure, reduces frictional heat and wear, and is suitable for medium- and low-pressure operating conditions.
Arbitrary rotation direction design: Supports forward and reverse rotation of the device, making installation convenient and reducing selection complexity.
External spring isolation: The spring assembly is located outside the media flow path, effectively isolating it from corrosion and blockage, thereby extending the service life of the elastic element.
✅ Applicable scenarios
Chemical Industry: Reactor vessels and transfer pumps for processes involving sulfuric acid, hydrochloric acid, chlor-alkali, and other chemicals—capable of withstanding corrosive media and slurry containing particulates.
Oil refining: Equipment for handling corrosive media containing solid particles, crystalline substances, or high-viscosity materials.
Power / Water Resources / Steel: Pump Seal for Clear Water, Hot Water, Wastewater, and Media Containing Particles
Papermaking / Coal Chemicals / Fertilizers / Aluminum Production: Equipment for Conveying and Mixing Fibrous, High-Viscosity Media
🔥 Preferred Sealing Solutions for Complex Operating Conditions
The Bogman H7N series, featuring a balanced design, floating stationary ring, and externally mounted springs, effectively addresses the sealing challenges posed by particle-laden corrosive media. Widely used in industries such as chemical processing and petroleum refining, it provides a reliable guarantee for the stable operation of industrial equipment.
✅ Selection and Application Recommendations
Key selection criteria: Precisely match the pump model, shaft diameter, medium characteristics (solids content, pH level), and operating parameters.
Installation highlights: Ensure the mounting surface is clean and properly aligned. Never force installation, and avoid damaging the sealing surfaces.
Maintenance and upkeep: Regularly inspect the sealing performance and leakage levels, and promptly replace worn parts.
Applicable host
Product Features
Use parameters
1. Medium: Oil, water, and other mildly corrosive liquids
2. Operating pressure: 0~6 MPa
3. Operating temperature: -50~220°C
4. Linear velocity: ≤20 m/s
Keywords：Bogman H7N Series
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Seal Support Systems
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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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