• Bellow Protection: The elastomer bellow covers the shaft, protecting it from corrosion and wear, while transmitting torque through friction grip.
• Dry Face Technology: Utilizing specific Carbon grades that can operate without a continuous liquid film, ideal for top-entry mixers or pumps that may run dry briefly.
Key Features
• MG12 Evolution: A robust elastomer bellow seal similar to the MG1 but with an extended tail for specific pump dimensions (L1k length).
• Dry-Run Variant: This specific model is configured with special face materials to handle dry running or poor lubrication conditions.
• Universal Fit: Fits standard cylindrical shafts without requiring a shaft step, making it easy to retrofit.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤1.4MPa | 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 |
| 16 | 0160 | 34.00 | 30.00 | 25.20 | 8.00 |
| 18 | 0180 | 36.80 | 32.00 | 25.20 | 8.00 |
| 20 | 0200 | 38.80 | 34.00 | 25.20 | 8.00 |
| 22 | 0220 | 41.50 | 36.00 | 25.20 | 8.00 |
| 25 | 0250 | 44.80 | 39.00 | 26.20 | 8.00 |
| 28 | 0280 | 48.50 | 43.00 | 26.20 | 8.00 |
| 30 | 0300 | 52.00 | 48.00 | 26.20 | 8.00 |
| 35 | 0350 | 57.00 | 53.00 | 30.20 | 10.00 |
| 40 | 0400 | 67.00 | 58.00 | 34.20 | 10.00 |
| 45 | 0450 | 73.00 | 63.00 | 36.20 | 10.00 |
| 50 | 0500 | 79.00 | 68.00 | 41.20 | 10.00 |
| 55 | 0550 | 84.00 | 73.00 | 41.20 | 12.00 |
| 60 | 0600 | 90.00 | 79.00 | 41.20 | 12.00 |
| 65 | 0650 | 98.50 | 86.00 | 49.20 | 12.00 |
| 70 | 0700 | 103.50 | 91.00 | 52.20 | 12.00 |
| 75 | 0750 | 110.50 | 96.00 | 52.20 | 12.00 |
| 80 | 0800 | 120.00 | 105.00 | 56.20 | 14.00 |
| 85 | 0850 | 125.00 | 110.00 | 56.20 | 14.00 |
| 90 | 0900 | 132.00 | 115.00 | 56.20 | 14.00 |
| 95 | 0950 | 137.00 | 120.00 | 56.20 | 14.00 |
| 100 | 1000 | 144.00 | 125.00 | 62.20 | 14.00 |
| 110 | 1100 | 157.00 | 135.00 | 62.20 | 16.00 |
| 120 | 1200 | 169.50 | 145.00 | 72.20 | 16.00 |
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 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
Batch Reactor: A small batch reactor required a simple seal that could handle the dry phase during emptying. We installed this Dry MG12. It sealed the vessel effectively without needing a complex barrier fluid system.
Testimonials
A simple, rugged seal for our mixing tanks. The MG12 format is easy to install and the dry running capability is a bonus.
—Maintenance Tech, Food Plant
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is MG12 longer than MG1?
A: Yes, the MG12 has a longer "tail" (bellows mounting length) than the MG1. You must check your shaft length availability before ordering.
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang
