• 45-Degree Tilt Edge: The bellow leaflets are welded at a 45-degree angle to disperse stress concentration, ensuring the bellow doesn't crack under high pressure pulsating loads.
• Balanced Hydraulic Design: Effectively balances the closing force to prevent face opening during pressure drops or vaporization.
Key Features
• High Speed & Pressure: Reinforced bellow geometry designed to withstand the pressure spikes and high RPMs (up to 4000 RPM) of booster service.
• Thermal Stability: Maintains face flatness even during rapid temperature cycling common in booster applications.
• Vibration Resistance: The bellow design accommodates the high-frequency vibration often found in multistage booster pumps.
Technical Specs | Materials | ||
Mediums | Oil, light hydrocarbon, aromatic hydrocarbon, organic solvents, weak acids, alkali, Ammonia, etc. | Stationary Ring | Sic/TC |
Temperature | -75℃ to 400℃ | Rotary Ring | Carbon/Sic/TC |
Pressure | ≤2.0MPa (Single), ≤6.0MPa (Double) | Secondary Seal | Graphite |
Speed | ≤23m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| Size/inch D1 | Size Code | D3 | L1 |
| 1.000 | 0254 | 41.28 | 38.89 |
| 1.125 | 0286 | 44.45 | 39.67 |
| 1.250 | 0317 | 47.63 | 40.46 |
| 1.375 | 0349 | 50.80 | 40.46 |
| 1.500 | 0381 | 53.98 | 40.46 |
| 1.625 | 0412 | 57.15 | 40.46 |
| 1.750 | 0444 | 60.33 | 41.28 |
| 1.875 | 0476 | 63.50 | 41.28 |
| 2.000 | 0508 | 66.68 | 42.06 |
| 2.125 | 0539 | 69.85 | 42.06 |
| 2.250 | 0571 | 73.03 | 43.66 |
| 2.375 | 0603 | 76.20 | 43.66 |
| 2.500 | 0635 | 82.55 | 44.45 |
| 2.625 | 0666 | 85.73 | 45.24 |
| 2.750 | 0698 | 88.90 | 45.24 |
| 2.875 | 0730 | 93.65 | 47.63 |
| 3.000 | 0762 | 96.82 | 47.63 |
| 3.125 | 0794 | 101.60 | 47.63 |
| 3.250 | 0826 | 104.78 | 47.63 |
| 3.375 | 0857 | 107.95 | 47.63 |
| 3.500 | 0889 | 111.13 | 47.63 |
| 3.625 | 0921 | 114.30 | 47.63 |
| 3.750 | 0953 | 117.48 | 47.63 |
| 3.875 | 0984 | 120.65 | 47.63 |
| 4.000 | 1016 | 123.83 | 47.63 |
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
Boiler Feed Booster: A cogeneration plant's booster pump suffered from seal face opening during load changes. This High-Temp Bellows Seal stabilized the operation. Its balanced design kept the faces closed during pressure transients.
Testimonials
Perfect for our hot water booster skids. They handle the pressure shocks much better than standard pusher seals.
—OEM Pump Manufacturer, Italy
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Can this handle low lubricity fluids like hot water?
A: Yes, hot water is a difficult lubricant. We recommend using Hot Water Carbon vs. Tungsten Carbide faces, as this combination resists the "washing out" of the binder in standard carbons.
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
