• Robust Drive Lugs: Features heavy-duty drive lugs to transmit torque reliably even when processing high-viscosity fluids like bitumen.
• Grafoil Secondary Seals: Uses die-formed flexible graphite rings exclusively, ensuring zero rubber content for maximum temperature capability.
Key Features
• High-Temp Cartridge Standard: A direct replacement for the industry-standard "606" style high-temperature cartridge seals used in refineries and petrochemical plants.
• Steam Quench Ready: Comes standard with quench and drain ports (API Plan 62) to manage leakage and prevent coking.
• Stationary Bellow Design: The bellow is stationary, which handles high speeds better than rotating bellows by avoiding centrifugal stress on the leaflets.
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
Bitumen Transfer: A refinery bitumen pump faced frequent seal failure. We installed the Type 606 Cartridge. The steam quench ports kept the asphalt from hardening, and the stationary bellow handled the misalignment. Result: 24 months continuous runtime.
Testimonials
A perfect drop-in for our Sealol 606 applications. The quality is OEM level but the delivery is weeks faster.
—Procurement Manager, Oil & Gas
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Why use a stationary bellow?
A: In rotating bellows, centrifugal force can distort the leaflets at high speeds. A stationary bellow remains static, allowing the seal to operate at much higher shaft speeds (up to 50 m/s) without fatigue.
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
