• Torque Transmission: The coil spring grabs the shaft (interference fit) to drive the seal, ensuring positive rotation without slipping.
• Bi-Directional: Unlike some spring seals, the friction drive design allows this seal to operate in either direction of shaft rotation.
Key Features
• Roten Type 5 Equivalent: A heavy-duty, single-spring rubber bellows seal designed to replace Roten Type 5 and similar "Face-to-Face" standard seals.
• Compact Working Length: Engineered with a short axial length to fit pumps with limited stuffing box space, common in European centrifugal pumps (Calpeda, Lowara).
• Self-Aligning: The elastomer bellow allows the rotary face to self-align with the stationary seat, accommodating shaft end-play and misalignment.
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
Cooling Tower Pump: Replaced leaking OEM seals on a cooling water circulation pump. The Roten-style rubber bellow seal handled the vibration of the aging pump motor perfectly, sealing leaks where O-ring seals had failed.
Testimonials
We use these on all our Italian-made water pumps. Fits perfectly and costs a fraction of the OEM spare part.
—Pump Distributor, Italy
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: What does "Face to Face" mean here?
A: In this context, it refers to the seal's mating pair—the rotary face and the stationary face. This product includes both as a matched set, ready to install.
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
