• Positive Drive: The rubber bellow friction-drives the rotary face, eliminating the need for drive pins that can wear or corrode in sewage.
• Debris Shedding: The smooth outer profile of the bellow prevents rags and fibers from winding around the seal (ragging).
Key Features
• Submersible Standard: A direct aftermarket replacement for the classic Flygt "Plug-in" or "Griploc" rubber bellow seals.
• Watertight Integrity: Designed to prevent water ingress into the motor of submersible sewage pumps.
• Dual Seal Capable: Often used in pairs (Upper and Lower) to provide a double barrier with an oil chamber in between.
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 |
| D1 (inch) | Size | D3 | D7 | D6 | L4 | L1 | L12 |
| 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
Municipal Lift Station: A city lift station needed to overhaul 10 Flygt 3102 pumps. Our Rubber Bellow Seals fit perfectly into the plug-in housings. The pumps were back in service in 24 hours at half the OEM repair cost.
Testimonials
Exact fit for our older Flygt 3085s and 3102s. Good rubber quality and the faces are lapped perfectly.
—Pump Repair Shop, Sweden
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is this the "Upper" or "Lower" seal?
A: We supply both. The Lower seal (in contact with sewage) usually has TC faces. The Upper seal (in oil bath) often uses Carbon/Ceramic. Please specify which you need.
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
