• Thermal Shock Resistance: Our specific ceramic grade is engineered to withstand the rapid temperature changes of hot water washdowns better than standard commercial ceramics.
• Polished Metal Surfaces: All wetted metal parts are electropolished to prevent product adhesion and bacterial growth.
Key Features
• FDA Compliant Materials: Constructed with food-grade Ceramic faces and FDA-approved EPDM or Silicone elastomers, ensuring product safety.
• Corrosion Resistant: Alumina Ceramic provides superior resistance to oxidizing agents and acidic food products compared to standard metals.
• Hygienic Design: Smooth exterior geometry and flushable gland ports allow for effective cleaning and sterilization.
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 |
| 43.5 | 104 | 12.5 | 19 | 38 | 25 | 62 | |
| 25 | 43.5 | 104 | 12.5 | 19 | 38 | 25 | 62 |
| 28 | 46.5 | 104 | 12.5 | 19 | 38 | 25 | 62 |
| 30 | 48.5 | 104 | 12.5 | 19 | 38 | 25 | 67 |
| 32 | 50.5 | 104 | 12.5 | 19 | 38 | 25 | 67 |
| 33 | 50.5 | 104 | 12.5 | 19 | 38 | 25 | 67 |
| 35 | 53.5 | 110 | 12.5 | 19 | 38 | 25 | 70 |
| 38 | 56.5 | 125 | 14.7 | 19 | 38 | 25 | 75 |
| 40 | 58.5 | 125 | 14.7 | 19 | 38 | 25 | 75 |
| 42 | 60.5 | 133 | 14.7 | 19 | 38 | 25 | 80 |
| 43 | 61.5 | 133 | 14.7 | 19 | 38 | 25 | 80 |
| 45 | 63.5 | 140 | 14.7 | 19 | 38 | 25 | 82 |
| 48 | 66.5 | 140 | 14.7 | 19 | 38 | 25 | 82 |
| 50 | 68.5 | 140 | 14.7 | 19 | 38 | 25 | 87 |
| 53 | 71.5 | 150 | 17.5 | 19 | 38 | 25 | 92 |
| 55 | 73.5 | 150 | 17.5 | 19 | 38 | 25 | 92 |
| 60 | 78.5 | 160 | 17.5 | 19 | 38 | 25 | 100 |
| 65 | 83.5 | 165 | 17.5 | 19 | 38 | 25 | 105 |
| 70 | 88.5 | 180 | 17.5 | 19 | 38 | 25 | 120 |
| 75 | 100 | 190 | 17.5 | 20.5 | 41.5 | 30 | 125 |
| 80 | 105 | 190 | 17.5 | 20.5 | 41.5 | 30 | 130 |
| 85 | 110 | 220 | 21.5 | 20.5 | 41.5 | 30 | 135 |
| 90 | 115 | 220 | 21.5 | 20.5 | 41.5 | 30 | 140 |
| 95 | 120 | 220 | 21.5 | 20.5 | 41.5 | 30 | 145 |
| 100 | 125 | 220 | 21.5 | 20.5 | 41.5 | 30 | 150 |
| D1 (inch) | D2 | D3 | D5 | L1 | L2 | L3 | L5 |
| 1.000 | 1.713 | 4.094 | 0.492 | 0.748 | 1.496 | 0.984 | 2.441 |
| 1.125 | 1.831 | 4.094 | 0.492 | 0.748 | 1.496 | 0.984 | 2.441 |
| 1.250 | 1.988 | 4.094 | 0.492 | 0.748 | 1.496 | 0.984 | 2.638 |
| 1.375 | 2.107 | 4.331 | 0.492 | 0.748 | 1.496 | 0.984 | 2.756 |
| 1.500 | 2.225 | 4.921 | 0.579 | 0.748 | 1.496 | 0.984 | 2.953 |
| 1.625 | 2.382 | 5.236 | 0.579 | 0.748 | 1.496 | 0.984 | 3.150 |
| 1.750 | 2.500 | 5.512 | 0.579 | 0.748 | 1.496 | 0.984 | 3.228 |
| 1.875 | 2.618 | 5.512 | 0.579 | 0.748 | 1.496 | 0.984 | 3.228 |
| 2.000 | 2.697 | 5.906 | 0.579 | 0.748 | 1.496 | 0.984 | 3.425 |
| 2.125 | 2.815 | 6.102 | 0.689 | 0.748 | 1.496 | 0.984 | 3.622 |
| 2.250 | 3.012 | 6.299 | 0.689 | 0.748 | 1.496 | 0.984 | 3.937 |
| 2.375 | 3.091 | 6.469 | 0.689 | 0.748 | 1.496 | 0.984 | 3.937 |
| 2.500 | 3.209 | 6.693 | 0.689 | 0.748 | 1.496 | 0.984 | 4.055 |
| 2.625 | 3.406 | 7.067 | 0.689 | 0.748 | 1.496 | 0.984 | 4.724 |
| 2.750 | 3.484 | 7.480 | 0.689 | 0.748 | 1.496 | 0.984 | 4.724 |
| 2.875 | 3.858 | 7.480 | 0.689 | 0.807 | 1.634 | 1.181 | 4.843 |
| 3.000 | 3.937 | 7.480 | 0.689 | 0.807 | 1.634 | 1.181 | 4.921 |
| 3.125 | 4.134 | 8.661 | 0.689 | 0.807 | 1.634 | 1.181 | 5.118 |
| 3.250 | 4.252 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.236 |
| 3.375 | 4.331 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.315 |
| 3.500 | 4.528 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.512 |
| 3.625 | 4.606 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.591 |
| 3.750 | 4.725 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.709 |
| 3.875 | 4.921 | 8.661 | 0.846 | 0.807 | 1.634 | 1.181 | 5.906 |
| 4.000 | 4.921 | 8.661 | 0.846 | 0.807 | 1.634 | 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
Bottling Plant: Replaced expensive SiC with Ceramic for sugar syrup pumps. Reduced costs by 30% with perfect hygiene and cleaning results.
Testimonials
We use these on our juice transfer lines. They clean up easily during CIP cycles and handle the acidic fruit juice without any pitting.
—Maintenance Supervisor, Beverage Company
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is Alumina Ceramic brittle compared to other materials?
A: Alumina Ceramic is harder than steel but can crack under heavy mechanical impact. However, in a stable centrifugal pump environment, it is extremely durable. We use high-purity 99.5% Alumina to maximize strength and thermal shock resistance.
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
