• Self-Cleaning Action: The centrifugal force generated by the rotating metal bellow leaflets actively throws solids away from the seal face, maintaining a clean operating environment.
• Hastelloy Construction: Manufactured with Hastelloy® C-276 bellows as standard to resist stress corrosion cracking in chloride-rich environments like tannery or chemical waste.
Key Features
• Extreme Duty Upgrade: A premium aftermarket replacement designed to upgrade standard elastomer Flygt seals to a robust metal bellow design.
• Clog-Proof Architecture: Eliminates the dynamic O-ring found in pusher seals, preventing "hang-up" caused by sludge, fibers, or sticky wastewater deposits.
• High Temperature Capable: Ideal for hot industrial wastewater applications where standard NBR or FKM rubber bellows might swell or fail.
Technical Specs | Materials | ||
Mediums | Sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and nitric acid with various degrees. etc. | Stationary Ring | Ceramic/Sic/Ssic |
Pressure | ≤0.5MPa | Rotary Ring | Teflon/Sic/Ssic |
Temperature | -20℃ to 120℃ | Secondary Seal | Teflon |
Speed | ≤10m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| D1 (mm) | Size | D3 | D7 | D6 | L4 | L1 | L12 |
| 25 | 0250 | 60 | 60 | 47 | 27 | 42 | 45 |
| 30 | 0300 | 67 | 67 | 53 | 27 | 42 | 45 |
| 32 | 0320 | 69 | 64 | 50.7 | 27 | 42 | 45 |
| 35 | 0350 | 72 | 70 | 57 | 27 | 42 | 45 |
| 40 | 0400 | 78 | 76 | 62 | 26 | 42 | 45 |
| 45 | 0450 | 84 | 82 | 67 | 27 | 44 | 46 |
| 50 | 0500 | 88 | 86 | 72 | 27 | 46 | 46 |
| 55 | 0550 | 95 | 90 | 77 | 27 | 46 | 46 |
| 60 | 0600 | 100 | 95 | 82 | 27 | 46 | 46 |
| 65 | 0650 | 105 | 100 | 87 | 27 | 46 | 46 |
| 1" | 0254 | 60 | 54 | 42.86 | 17.5 | 42 | 45 |
| 1 1/8" | 0286 | 67 | 60 | 46.03 | 27 | 42 | 45 |
| 1 1/4" | 0317 | 69 | 65 | 50.8 | 27 | 42 | 45 |
| 1 3/8" | 0349 | 72 | 68 | 53.98 | 27 | 42 | 45 |
| 1 1/2" | 0381 | 76 | 71 | 57.15 | 27 | 42 | 45 |
| 1 5/8" | 0412 | 80 | 78 | 63.5 | 27 | 42 | 45 |
| 1 3/4" | 0444 | 84 | 81 | 66.68 | 27 | 44 | 46 |
| 1 7/8" | 0476 | 86 | 84 | 69.85 | 27 | 44 | 46 |
| 2" | 0508 | 90 | 87 | 73.03 | 27 | 46 | 46 |
| 2 1/8" | 0539 | 95 | 97 | 79.38 | 33.5 | 46 | 46 |
| 2 1/4" | 0571 | 98 | 100 | 82.55 | 33.5 | 46 | 46 |
| 2 3/8" | 0603 | 100 | 103 | 85.73 | 33.5 | 46 | 46 |
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
Tannery Wastewater: A tannery sump pump failed repeatedly due to hot, chemically aggressive sludge attacking the rubber bellows. We installed this Metal Bellow replacement. The all-metal construction resisted the chemicals and heat, extending pump runtime from 3 months to over 2 years.
Testimonials
We put these in the pits where nothing else survives. They cost more than the rubber ones but save us thousands in maintenance labor.
—Maintenance Planner, Industrial Park
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Does this fit the standard Plug-in housing?
A: Yes, we have engineered cartridge versions that fit directly into the standard Flygt Plug-in or Griploc seal chambers (e.g., 3153, 3171) without requiring any modification to the pump.
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
