• Unitized Mini-Seal: The spring, bellow, and drive ring are integrated into a single unit, preventing parts loss during repair.
• Soft Face Seating: The carbon face conforms quickly to the mating seat, ensuring a tight seal almost immediately after installation.
Key Features
• Tullu Pump Specific: A miniature, single-spring elastomer bellow seal designed to fit the compact housing of Tullu and similar domestic water pumps (e.g., Tullu Top 80).
• Self-Priming Tolerant: The Carbon face handles the brief dry periods that occur when self-priming domestic pumps are evacuating air from the suction line.
• Economic & Reliable: Provides a high-quality, leak-free seal for cost-sensitive domestic pump repairs.
Product Specifications
| Size Metric | d | D3 | D2 | D1 | d1 | L1 | L11 | L2 | L3 |
| 10 | 10 | 20 | 17 | 21 | 3 | 16.9 | 10 | 17.5 | |
| 12 | 12 | 22 | 19 | 23 | 3 | 17.4 | 10 | 17.5 | |
| 14 | 14 | 24 | 21 | 25 | 3 | 17.4 | 16.5 | 10 | 17.5 |
| 16 | 16 | 26 | 23 | 27 | 3 | 19.5 | 16.5 | 10 | 17.5 |
| 18 | 18 | 31 | 27 | 33 | 3 | 20.5 | 18 | 11.5 | 19.5 |
| 20 | 20 | 34 | 29 | 35 | 3 | 22 | 19 | 11.5 | 19.5 |
| 22 | 22 | 36 | 31 | 37 | 3 | 23.5 | 20.5 | 11.5 | 19.5 |
| 24 | 24 | 38 | 33 | 39 | 3 | 25 | 22 | 11.5 | 19.5 |
| 25 | 25 | 39 | 34 | 40 | 3 | 26.5 | 23.5 | 11.5 | 19.5 |
| 28 | 28 | 42 | 37 | 43 | 3 | 26.5 | 24.5 | 11.5 | 19.5 |
| 30 | 30 | 44 | 39 | 45 | 3 | 25 | 24.5 | 11.5 | 19.5 |
| 32 | 32 | 46 | 42 | 48 | 3 | 28.5 | 28 | 11.5 | 19.5 |
| 33 | 33 | 47 | 42 | 48 | 3 | 11.5 | 19.5 | ||
| 35 | 35 | 49 | 44 | 50 | 3 | 28.5 | 28 | 11.5 | 19.5 |
| 38 | 38 | 54 | 49 | 56 | 4 | 32.2 | 31 | 14 | 22 |
| 40 | 40 | 56 | 51 | 58 | 4 | 34.7 | 34 | 14 | 22 |
| 43 | 43 | 59 | 54 | 61 | 4 | 14 | 22 | ||
| 45 | 45 | 61 | 56 | 63 | 4 | 39.2 | 36.5 | 14 | 22 |
| 48 | 48 | 64 | 59 | 66 | 4 | 44.7 | 42 | 14 | 22 |
| 50 | 50 | 66 | 62 | 70 | 4 | 45.7 | 43 | 15 | 23 |
| 53 | 53 | 69 | 65 | 73 | 4 | 15 | 23 | ||
| 55 | 55 | 71 | 67 | 75 | 4 | 49 | 47 | 15 | 23 |
| 58 | 58 | 78 | 70 | 78 | 4 | 52 | 50 | 15 | 23 |
| 60 | 60 | 79 | 72 | 80 | 4 | 53 | 51 | 15 | 23 |
| 63 | 63 | 83 | 75 | 83 | 4 | 15 | 23 | ||
| 65 | 65 | 85 | 77 | 85 | 4 | 54.3 | 52 | 15 | 23 |
| 68 | 68 | 88 | 81 | 90 | 4 | 55.3 | 52.7 | 18 | 26 |
| 70 | 70 | 90 | 83 | 92 | 4 | 56.3 | 54 | 18 | 26 |
| 75 | 75 | 98 | 88 | 97 | 4 | 56.3 | 54 | 18 | 26 |
| 80 | 80 | 103 | 95 | 105 | 4 | 59.3 | 58 | 18.2 | 26.2 |
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
Residential Supply: A distributor of domestic booster pumps needed a reliable seal replacement. We supplied this Roten-style Carbon seal. Its tolerance for start/stop cycles reduced their warranty claims by 50%.
Testimonials
Fits perfectly in the Tullu Top pump. The carbon face doesn't crack like the cheap ceramic ones we used to buy.
—Pump Repair Shop, India
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is this a Type 2 or Type 5?
A: For Tullu pumps, it is typically a specific variant of the Roten Type 2 or Type 5, scaled down. We have the specific mold dimensions to fit the Tullu seal cavity exactly.
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
