Grundfos Mechanical Seals Carbon/Graphite for Water Pump
• Self-Lubricating: The Carbon face protects the seal during dry start-ups or air-locks in the system, preventing immediate failure.
• Adhesion Resistance: Carbon does not "stick" to the SiC stationary face during long periods of inactivity (e.g., summer shutdown of heating pumps), ensuring reliable restart.
Key Features
• The BAQE Standard: The definitive replacement for the Grundfos "BAQE" seal code (Bellows, Carbon, SiC, EPDM).
• Clean Water Specialist: Designed specifically for HVAC heating, cooling loops, and tap water boosting where fluids are clean.
• Silent Running: Carbon Graphite faces have a low coefficient of friction, ensuring quiet operation and low energy consumption, crucial for building services.
Technical Specs | Materials | ||
Temperature | -30℃ to 200℃ | Stationary Ring | Sic/TC/Carbon |
Rotary Ring | Sic/TC | ||
Pressure | ≤1.2MPa | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤10m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| D1 (mm) | Size Code | D3 | D7 | L1 | L | L10 |
| 12 | 0120 | 22 | 23 | 31 | 39 | 40.5 |
| 16 | 0160 | 26 | 27 | 32.5 | 40.5 | 41.5 |
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
Office Air Conditioning: Chilled water pumps were squeaking and leaking. We replaced the hard-face seals with these Carbon/Graphite variants. The noise stopped immediately, and the low friction improved the pump's amp draw.
Testimonials
The standard for our water circulation jobs. Carbon faces are forgiving and seat quickly.
—Mechanical Contractor, London
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Can I use this for dirty water?
A: No. Carbon is soft. If the water has sand or rust scale, the Carbon face will wear out quickly. For dirty water, use a Tungsten Carbide or SiC face option.
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
