Performance parameters
| Parameter Item | Indicator Range |
| Working Pressure | ＜1.2 MPa |
| Operating Temperature | -20℃ ~ 120℃ |
| Linear Velocity | ＜10 m/s |
| Shaft Diameter Range | 10 mm ~ 110 mm |
Design Features
- Internal suction and internal flow structure: Effectively reduces the risk of solid particles in the medium entering the sealing end face, improves anti-pollution capability, and extends seal life, especially suitable for wastewater and sewage media containing trace particles.
- Single-sided, single-spring, unbalanced design: Compact structure, convenient installation and maintenance; the single spring provides stable end face pressure, can adapt to axial movement, and supports installation and operation in any direction.
- Optimized stress on rubber bellows: The bellows does not bear tensile stress, significantly reducing the risk of fatigue damage, improving anti-aging performance, and extending seal service life.
- Multifunctional integrated design: The rubber bellows directly drives the rotating ring, serving as both the main sealing element and the rotational driving force transmission mechanism, simplifying the structure while ensuring operational stability.
- Specially adapted for wastewater scenarios: Optimized for sewage treatment conditions, it can withstand the erosion of impurities and weak acid/alkali media in sewage, reducing the risk of seal failure.
Main Material Composition
- Sealing Surface: Graphite, silicon carbide (SiC), tungsten carbide (WC), hard alloy, etc., with different combinations to suit different media and working conditions, featuring low friction, high wear resistance, and corrosion resistance.
- Bellows: Nitrile rubber (NBR), fluororubber (Viton), ethylene propylene diene monomer (EPDM), selectable according to media characteristics, suitable for different media environments such as water, oil, weak acid/weak alkali, etc.
- Metal Components: Stainless steel, possessing good corrosion resistance and structural strength, allowing for long-term stable use under normal working conditions.
Core Advantages
- Reliable Structure and Convenient Maintenance: Single spring + bellows drive design, simplified structure, no complex tooling required for installation and replacement, significantly reducing maintenance costs and downtime.
- Anti-fouling and Wear-resistant, Suitable for Complex Media: Internal flow structure reduces particle intrusion, combined with highly wear-resistant sealing surface materials, can withstand sewage and suspension media containing trace impurities, reducing end-face wear and leakage risks.
- Optional materials, adaptable to various working conditions: Multiple sealing surface materials and bellows are available, allowing for customized solutions based on media characteristics, taking into account temperature resistance, corrosion resistance, and wear resistance requirements.
- Stable operation and excellent sealing performance: The bellows is not subjected to tensile stress, exhibiting strong fatigue resistance; the end face specific pressure is stable, adapting to the axial movement of conventional pumps and ensuring long-term leak-free operation.
- Cost-effective and highly versatile: Adaptable to various shaft diameters from 10 to 110 mm, compatible with most general-purpose pump types, meeting the sealing needs of most industrial scenarios without complex customization, offering outstanding cost-effectiveness.
Applicable Media:：
This product is suitable for a wide range of operating scenarios; applicable media include:
- Water: Cold/hot water, circulating water, tap water, wastewater containing trace particulates, municipal/domestic sewage, groundwater, etc.
- Food & Beverages: Water, fruit juices, tea, beer, dairy products, syrups, food-grade low-concentration acidic/alkaline cleaning solutions, etc.
- Acids & Bases: Low-concentration sulfuric acid, aqueous sulfuric acid solutions, and other weak/dilute acids; low-concentration carbon dioxide solutions, sodium carbonate solutions, and other weak/dilute bases.
- Suspensions: Process suspensions containing trace solid particles, low-concentration suspensions, sludge suspensions, and various other low-concentration suspended mixtures.
- Others: Diluents, vegetable oils, brine, dilute chemical solvents, HVAC circulating fluids, etc.
