The Burgmann MG1 mechanical seal represents the industry standard for elastomer bellows seals, designed for reliable performance in various industrial pumping applications. This face mechanical seal is engineered to maintain integrity even in challenging conditions where a consistent liquid film may be absent. Serving as a direct replacement for the original Burgmann MG1 mechanical seal, it utilizes a robust, flexible bellows to provide excellent sealing, making it the optimal choice for standard centrifugal pumps, mixers, and agitators where durability and cost-effectiveness are paramount.
Key Features
• The Industry Standard: The Burgmann MG1 mechanical seal is the most widely copied elastomer bellow seal in the world. Our replacement matches it perfectly.
• Dry-Running Upgrade: Equipped with specialized self lubricating faces for applications where liquid lubrication is unreliable or intermittent.
• Cost-Effective: The most economical solution for general sealing duties in water, wastewater, and light industrial applications.
• Unbalanced Flexibility: The flexible bellow design accommodates significant shaft misalignment and end-play, making it forgiving in worn or older equipment.
• No Shaft Fretting: The bellow grips the shaft tightly, ensuring no dynamic parts slide on the shaft to cause wear.
We offer tailored solutions to ensure the Dry Face Burgmann MG1 meets your exact operational requirements:
Material Selection: Customize the elastomer bellows material (NBR, EPDM, FKM/Viton) for chemical compatibility and temperature range. Choose from various seal face materials like Carbon, Silicon Carbide (SiC), or Tungsten Carbide (TC) for optimal wear resistance.
Dimensional Adaptations: Available in a comprehensive range of standard shaft sizes. We can also manufacture to non-standard dimensions to fit specific or legacy pump models.
Special Features: Options include different gland plate configurations, the inclusion of drive lugs or pins, and specific hardware materials (SS304, SS316) upon request.
The versatility of the Burgmann MG1 mechanical seal makes it suitable for a broad spectrum of industries:
General Industrial Pumps: The standard choice for ANSI/ISO chemical process pumps, water supply, and circulation pumps.
Agitators & Mixers: Ideal for top-entry designs in pharmaceutical, food & beverage, and chemical industries where a reliable dry mechanical seal is needed for vapor space sealing.
Water & Wastewater: Effective in clean water, cooling water, and wastewater applications with low solids content.
HVAC & Building Services: Dry mechanical seals are Commonly used in heating and cooling system circulation pumps.
Choosing us as your supplier for the Burgmann MG1 mechanical seal provides significant benefits:
OEM-Quality Interchangeability: Our dry mechanical seals are manufactured to strict EN 12756 (DIN 24960) standards, guaranteeing a perfect fit and performance equivalent to the original face mechanical seal.
Exceptional Cost Value: We deliver high-quality, reliable sealing solutions at a significantly lower total cost of ownership compared to genuine OEM parts.
Rapid Supply Chain: Our efficient manufacturing and stocking strategy ensures quick availability and short lead times, minimizing your equipment downtime.
Technical Expertise: Our engineering team possesses deep application knowledge and can provide expert support for material selection and troubleshooting specific to dry mechanical seal applications.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤2.5MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 120℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤15m/s | Spring and Metal Part | Stainless Steel |


Product Specifications
| Metric Shaft Size D1 | Size Code | D3 | D7 | L1 | L4 |
| 14 | 0140 | 24.0 | 25.0 | 23.0 | 12.0 |
| 16 | 0160 | 26.0 | 27.0 | 23.0 | 12.0 |
| 18 | 0180 | 32.0 | 33.0 | 24.0 | 13.5 |
| 20 | 0200 | 34.0 | 35.0 | 24.0 | 13.5 |
| 22 | 0220 | 36.0 | 37.0 | 24.0 | 13.5 |
| 24 | 0240 | 38.0 | 39.0 | 26.7 | 13.3 |
| 25 | 0250 | 39.0 | 40.0 | 27.0 | 13.0 |
| 28 | 0280 | 42.0 | 43.0 | 30.0 | 12.5 |
| 30 | 0300 | 44.0 | 45.0 | 30.5 | 12.0 |
| 32 | 0320 | 46.0 | 48.0 | 30.5 | 12.0 |
| 33 | 0330 | 47.0 | 48.0 | 30.5 | 12.0 |
| 35 | 0350 | 49.0 | 50.0 | 30.5 | 12.0 |
| 38 | 0380 | 54.0 | 56.0 | 32.0 | 13.0 |
| 40 | 0400 | 56.0 | 58.0 | 32.0 | 13.0 |
| 43 | 0430 | 59.0 | 61.0 | 32.0 | 13.0 |
| 45 | 0450 | 61.0 | 63.0 | 32.0 | 13.0 |
| 48 | 0480 | 64.0 | 66.0 | 32.0 | 13.0 |
| 50 | 0500 | 66.0 | 70.0 | 34.0 | 13.5 |
| 53 | 0530 | 69.0 | 73.0 | 34.0 | 13.5 |
| 55 | 0550 | 71.0 | 75.0 | 34.0 | 13.5 |
| 58 | 0580 | 78.0 | 78.0 | 39.0 | 13.5 |
| 60 | 0600 | 80.0 | 80.0 | 39.0 | 13.5 |
| 63 | 0630 | 83.0 | 83.0 | 39.0 | 13.5 |
| 65 | 0650 | 85.0 | 85.0 | 39.0 | 13.5 |
| 68 | 0680 | 88.0 | 90.0 | 39.0 | 13.5 |
| 70 | 0700 | 89.0 | 92.0 | 45.5 | 14.5 |
| 75 | 0750 | 96.0 | 97.0 | 45.5 | 14.5 |
| 80 | 0800 | 104.0 | 105.0 | 45.0 | 15.0 |
| 85 | 0850 | 108.0 | 110.0 | 45.0 | 15.0 |
| 90 | 0900 | 114.0 | 115.0 | 50.0 | 15.0 |
| 95 | 0950 | 118.0 | 120.0 | 50.0 | 15.0 |
| 100 | 1000 | 124.0 | 125.0 | 50.0 | 15.0 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.




Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All burgmann mg1 mechanical seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.




Industry Solutions




Case Study
Sump Pump: A vertical sump pump often ran dry when the pit was empty, burning out standard seals. We installed this Dry Face MG1 mechanical seal. The specialized faces tolerated the dry periods, extending seal life from weeks to months.
Testimonials
We buy these Burgmann MG1s in bulk. They are the universal spare part for 80% of our water pumps.
—Pump Service Center, Poland
FAQs
Q: What is the difference between Burgmann MG1, MG12, and MG13?
A: They are all elastomer bellow seals with identical sealing faces. The difference is the length of the rear bellow (mounting length). MG1 is short, MG12 is medium, MG13 is long. Check your dimension L1k.
Q: Is this seal a direct replacement for the original Burgmann MG1?
A: Yes, absolutely. Burgmann MG1 mechanical seal is engineered as a direct, drop-in replacement, matching the original dimensions, materials, and performance specifications to ensure seamless integration.
Q: What does "Dry Face" capability mean for this seal?
A: "Dry Face" indicates that this face mechanical seal is designed to operate effectively in conditions where a continuous liquid lubricating film between the seal faces may be absent, such as in the vapor space of a mixer. It utilizes compatible face materials to handle intermittent or sustained dry running better than standard wet seals.

Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
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