• Low Friction Face: The standard Carbon face is chosen for its low coefficient of friction, critical for smaller motors where seal drag can be significant.
• Secure Mounting: The stationary seat is designed with a precise interference fit or O-ring mount to ensure it stays square to the shaft.
Key Features
• Small Shaft Precision: Designed for smaller APV W+ and Puma pumps with 25mm and 28mm shafts.
• Compact Performance: Delivers full industrial sealing performance in a compact footprint suitable for pilot plants and dosing pumps.
• Food Safe: As with all our sanitary seals, it uses FDA-approved materials safe for direct contact with food products.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤0.5MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 100℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤10m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| D1 (inch) | Size Code | D3 | D7 | L1 | L4 |
| 0.500 | 0127 | 23.3 | 25.4 | 16.86 | 6.35 |
| 0.500A | 0127A | 23.3 | 25.4 | 16.86 | 7.93 |
| 0.625 | 0158 | 30.1 | 31.75 | 18.44 | 10.31 |
| 0.750 | 0191 | 33 | 34.93 | 18.44 | 10.31 |
| 0.875 | 0222 | 36.3 | 38.1 | 20.82 | 10.31 |
| 1.000 | 0254 | 39.42 | 41.28 | 20.82 | 11.1 |
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
Flavor Dosing: A flavor dosing skid used 25mm APV pumps. The seals needed frequent replacement due to flavor concentrate aggressiveness. We supplied FKM O-ring versions of this seal. The FKM resisted the essential oils, doubling seal life.
Testimonials
Perfect fit for our pilot plant pumps. The 25mm seals are high quality and easy to install.
—R&D Engineer, Food Tech
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is this a single or double seal?
A: This product page refers to the Single seal. However, these pumps can often be fitted with a double seal. We supply double seal kits for 25mm/28mm shafts as well.
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
