• Chemical Resistance: SiC faces combined with FKM bellows offer broad resistance to the fatty acids and high temperatures found in oleochemical processing.
• Direct Replacement: Matches the working length and seat dimensions of the OEM seal, requiring no modification.
Key Features
• Kewpump Specific: Engineered to fit the seal chambers of Kewpump chemical and process pumps commonly used in palm oil and general industries.
• SiC/SiC Durability: Solid Silicon Carbide faces handle the abrasive nature of crude palm oil and sludge.
• Flexible Bellow: The elastomer bellow accommodates the shaft deflection often seen in belt-driven Kewpumps.
Technical Specs | Materials | ||
Mediums | Submersible pumps, sewage pumps, applied to the muddy water, sewage water or weakly-corrosive fluids with solid grains. | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤0.5MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 100℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤8m/s | Spring and Metal Part | Stainless Steel |




Product Specifications
| D1 (mm) | Size Code | D7 | D8 | L1 | L3 | L4 |
| 14 | 0140 | 30 | 30 | 37 | 5 | 5 |
| 15 | 0150 | 30 | 30 | 37 | 5 | 5 |
| 16 | 0160 | 30 | 30 | 37 | 5 | 5 |
| 20 | 0200 | 38 | 38/44 | 50 | 8/7 | 7 |
| 25 | 0250 | 44 | 44/50 | 51 | 8.5 | 7 |
| 30 | 0300 | 44/50 | 57 | 59 | 8.3 | 9 |
| 35 | 0350 | 54 | 57 | 61 | 9.5 | 8.5 |
| 40 | 0400 | 64 | 70 | 65 | 9 | 10 |
| 45 | 0450 | 66 | 70 | 65 | 9 | 10 |
| 50 | 0500 | 72 | 80 | 69 | 9 | 10 |
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
Palm Oil Mill: Replaced OEM seals on sludge centrifuges with our SiC/SiC Kewpump seals. The hard faces resisted the sand and shell particles in the sludge, reducing seal changes from monthly to quarterly.
Testimonials
We run 50 Kewpumps in our mill. These SiC replacement seals save us a fortune and last just as long as the original.
—Mill Manager, Indonesia
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Which Kewpump models?
A: Fits standard KS and KCM series pumps. Please provide the shaft diameter (e.g., 28mm, 38mm, 48mm) to confirm.

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