• Thermal Stability: SiC's superior thermal conductivity helps dissipate the heat generated by two sets of seal faces, preventing barrier fluid overheating.
• Modular Flexibility: Allows pump repair shops to configure back-to-back or tandem seals tailored to specific pump chamber dimensions without buying a full cartridge.
Key Features
• Component Kit for Double Seals: A comprehensive set of rotary and stationary seal components designed to build a custom double seal arrangement.
• Dual Hard Faces: Features Silicon Carbide (SiC) faces for both the inboard (process) and outboard (barrier) seals, ensuring maximum resistance to abrasives and barrier fluid contamination.
• Universal O-Ring Mounts: Standard O-ring groove dimensions allow for easy switching between elastomers (FKM, EPDM, FFKM) based on chemical compatibility.
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 silicon carbide mechanical seal components product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.




Product Research, Development and Testing
Our silicon carbide mechanical seal components Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All silicon carbide 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
Custom Mixer Rebuild: A chemical mixer with a unique stuffing box needed a double seal. OEM parts were obsolete. We supplied these SiC O-ring mechanical seal components. The shop machined a custom gland, installed our components, and restored the mixer to service with zero leakage.
Testimonials
We build custom seals for the mining industry. These SiC components are dimensionally perfect and hold up to the slurry we pump.
—Seal Repair Shop, Australia
FAQs about silicon carbide mechanical seals for High Temperature Pumps
Q: Is this a pre-assembled cartridge?
A: No, these are component parts (rotaries and stationaries). You need to install them into your pump's existing gland and shaft sleeve. This offers flexibility for custom pumps but requires skilled installation.

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