• Finite Element Analysis (FEA): The seal faces are optimized using FEA to ensure they remain flat and leak-free even when subjected to pressure spikes.
• Pumping Ring Option: Available with an integrated pumping ring to circulate buffer fluid, enhancing cooling in hot water applications.
Key Features
• High-Pressure Capability: Reinforced seal face geometry and drive lugs prevent distortion and cracking under extreme system pressures (up to 60 bar).
• Balanced Design: A fully balanced hydraulic design minimizes heat generation and face wear, even at high pressures and speeds.
• Robust Drive Mechanism: Uses heavy-duty drive pins or keys instead of set screws to transmit torque, preventing slippage during high-load operation.
Technical Specs | Materials | ||
Mediums | Chemical, Food, Oil, Petroleum, Pharmaceuticals Paper and pulp, Sewage treatment | Stationary Ring | Carbon/Sic/Ssic/TC |
Temperature | Elastomer Dependent | Rotary Ring | Sic/Ssic/TC |
Pressure | ≤2.8MPa | Secondary Seal | Viton/EPDM/Chemraz/Kalrez/Aflas, etc |
Speed | ≤35m/s | Spring and Metal Part | Stainless Steel/Hast C |
Product Specifications
| D1 (mm) | D2 | D3 | D5 | L1 | L2 | L3 | L5 |
| 25 | 40 | 104 | 12.5 | 9 | 48 | 25 | 62 |
| 28 | 43 | 104 | 12.5 | 9 | 48 | 25 | 62 |
| 30 | 45 | 104 | 12.5 | 9 | 48 | 25 | 67 |
| 32 | 47 | 104 | 12.5 | 9 | 48 | 25 | 67 |
| 33 | 47 | 104 | 12.5 | 9 | 48 | 25 | 67 |
| 35 | 50 | 110 | 12.5 | 9 | 48 | 25 | 70 |
| 38 | 53 | 125 | 14.7 | 9 | 48 | 25 | 75 |
| 40 | 55 | 125 | 14.7 | 9 | 48 | 25 | 75 |
| 42 | 57 | 133 | 14.7 | 9 | 48 | 25 | 80 |
| 43 | 58 | 133 | 14.7 | 9 | 48 | 25 | 80 |
| 45 | 60 | 140 | 14.7 | 9 | 48 | 25 | 82 |
| 48 | 63 | 140 | 14.7 | 9 | 48 | 25 | 82 |
| 50 | 65 | 140 | 14.7 | 9 | 48 | 25 | 87 |
| 53 | 68 | 150 | 17.5 | 9 | 48 | 25 | 92 |
| 55 | 70 | 150 | 17.5 | 9 | 48 | 25 | 92 |
| 60 | 75 | 160 | 17.5 | 9 | 48 | 25 | 100 |
| 65 | 80 | 165 | 17.5 | 9 | 48 | 25 | 105 |
| 70 | 85 | 180 | 17.5 | 9 | 48 | 25 | 120 |
| 75 | 95 | 190 | 17.5 | 8 | 54 | 30 | 125 |
| 80 | 100 | 190 | 17.5 | 8 | 54 | 30 | 130 |
| 85 | 105 | 220 | 21.5 | 8 | 54 | 30 | 135 |
| 90 | 110 | 220 | 21.5 | 8 | 54 | 30 | 140 |
| 95 | 115 | 220 | 21.5 | 8 | 54 | 30 | 145 |
| 100 | 120 | 220 | 21.5 | 8 | 54 | 30 | 150 |
| D1 (inch) | D2 | D3 | D5 | L1 | L2 | L3 | L5 |
| 1.000 | 1.575 | 4.094 | 0.492 | 0.354 | 1.890 | 0.984 | 2.441 |
| 1.125 | 1.693 | 4.094 | 0.492 | 0.354 | 1.890 | 0.984 | 2.441 |
| 1.250 | 1.850 | 4.094 | 0.492 | 0.354 | 1.890 | 0.984 | 2.638 |
| 1.375 | 1.969 | 4.331 | 0.492 | 0.354 | 1.890 | 0.984 | 2.756 |
| 1.500 | 2.087 | 4.921 | 0.579 | 0.354 | 1.890 | 0.984 | 2.953 |
| 1.625 | 2.244 | 5.236 | 0.579 | 0.354 | 1.890 | 0.984 | 3.150 |
| 1.750 | 2.362 | 5.512 | 0.579 | 0.354 | 1.890 | 0.984 | 3.228 |
| 1.875 | 2.480 | 5.512 | 0.579 | 0.354 | 1.890 | 0.984 | 3.228 |
| 2.000 | 2.559 | 5.906 | 0.579 | 0.354 | 1.890 | 0.984 | 3.425 |
| 2.125 | 2.677 | 6.102 | 0.689 | 0.354 | 1.890 | 0.984 | 3.622 |
| 2.250 | 2.874 | 6.299 | 0.689 | 0.354 | 1.890 | 0.984 | 3.937 |
| 2.375 | 2.953 | 6.469 | 0.689 | 0.354 | 1.890 | 0.984 | 3.937 |
| 2.500 | 3.071 | 6.693 | 0.689 | 0.354 | 1.890 | 0.984 | 4.055 |
| 2.625 | 3.268 | 7.067 | 0.689 | 0.354 | 1.890 | 0.984 | 4.724 |
| 2.750 | 3.346 | 7.480 | 0.689 | 0.354 | 1.890 | 0.984 | 4.724 |
| 2.875 | 3.661 | 7.480 | 0.689 | 0.315 | 1.516 | 1.181 | 4.843 |
| 3.000 | 3.740 | 7.480 | 0.689 | 0.315 | 1.516 | 1.181 | 4.921 |
| 3.125 | 3.937 | 8.661 | 0.689 | 0.315 | 1.516 | 1.181 | 5.118 |
| 3.250 | 4.055 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.236 |
| 3.375 | 4.134 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.315 |
| 3.500 | 4.331 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.512 |
| 3.625 | 4.409 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.591 |
| 3.750 | 4.528 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.709 |
| 3.875 | 4.724 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.906 |
| 4.000 | 4.724 | 8.661 | 0.846 | 0.315 | 1.516 | 1.181 | 5.906 |
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
Power Plant Solution: A power plant's boiler feed pump was leaking due to pressure spikes blowing out standard balanced seals. We supplied this High-Pressure Cartridge Seal with Tungsten Carbide faces. The robust drive mechanism held firm, and the seal has maintained pressure integrity for over 8,000 running hours.
Testimonials
Finally, a seal that doesn't crack under 40 bar pressure. These are built like tanks and are perfect for our multistage pumps.
—Maintenance Lead, Power Generation Facility
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Can this model replace OEM seals for Grundfos or KSB multistage pumps?
A: Yes, we have specific variants designed to be compatible with the seal chambers of major high-pressure multistage pumps. These are not just dimensional copies; they feature upgraded face geometry to handle the thrust and pressure loads typical of vertical multistage pumps.
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
