• Monolithic Faces: We use monolithic SiC faces (solid) rather than inserted faces, providing better heat transfer and eliminating the risk of face detachment.
• Heavy-Duty Spring: The coil spring is designed to handle the slightly higher friction torque of hard faces without winding up.
Key Features
• Roten Upgrade: A direct replacement for Roten Type 2, Type 3, and Type 5 seals, upgraded with Silicon Carbide faces.
• Compact Durability: Fits the short axial length of standard Roten seals but offers the extreme hardness required for modern industrial fluids.
• European Standard Fit: Designed to DIN 24960 (EN 12756) L1K dimensions, fitting thousands of European pumps (e.g., Lowara, Ebara, Calpeda).
Product Specifications
Sic Physical Property | |||
Technical Parameter | Unit | Sic | Ssic |
Hardness | HS | 110 | 115 |
Porosity Rate | % | <0.3 | <0.2 |
Density | g/cm³ | 3.00-3.05 | >3.1 |
Compressive Strength | MPa | ≥2200 | ≥2500 |
Fractural Strength | MPa | ≥350 | ≥380 |
Coefficient Of Heat Expansion | 10⁻⁶/℃ | 4 | 4.2 |
Content of Sic | % | ≥90 | ≥98 |
Content of Free Silicone | % | ≤10 | ≤1 |
Elastic Modulus | GPa | ≥400 | ≥410 |
Temperature | ℃ | 1300 | 1400 |
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
Commercial Laundry: Laundry pumps using standard Roten seals failed due to lint and grit. We installed this SiC replacement. The hard faces cut through the fibers and resisted the grit, ensuring reliable operation during peak wash cycles.
Testimonials
A massive upgrade for our Lowara pumps. The SiC faces handle the dirty heating water much better than the original ceramic ones.
—HVAC Contractor, UK
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: How do I know if I have a Roten seal?
A: Roten seals typically have a distinctive "Type 2" look with a rubber bellow and a single coil spring. If your pump is Italian or Spanish (Lowara, Calpeda, Saer), it likely uses this style.
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
