Material Combinations (Optional)
Rotating Face: Silicon Carbide (SiC), Tungsten Carbide (TC), Carbon Graphite
Stationary Face: Carbon Graphite (impregnated with resin or metal)
Secondary Seal: EPDM, FKM (Viton), NBR, FFKM, PTFE
Metal Parts: SS304, SS316, Carbon Steel
MOR 208 mechanical seal is a classic, versatile single-acting, unbalanced mechanical seal with an elastomer bellows structure, widely applied in centrifugal pumps, water pumps, chemical pumps, and light industrial rotating equipment. It features a simple, compact design, reliable performance, and cost-effectiveness, making it a mainstream choice for general industrial sealing needs.
Features
Elastomer Bellows Dynamic Seal: Adopts a high-quality elastomer bellows as the compensation element, providing excellent flexibility and self-compensation for shaft runout, axial movement, and wear, ensuring tight sealing even under slight misalignment.
Unbalanced Design: Optimized unbalanced structural design, compact in size and economical in cost, suitable for low-to-medium pressure operating conditions, perfectly matching the working requirements of general industrial pumps.
Single Spring Configuration: Equipped with a single external spring, ensuring stable and uniform face loading, simple structure, and strong resistance to clogging in clean or low-solid-content media.
Rotating Seal Head: The seal head rotates with the shaft, facilitating on-site installation and replacement without disassembling the entire pump body, improving maintenance efficiency.
Bidirectional Rotation: No need to distinguish the rotation direction of the pump during installation, reducing on-site operation errors and enhancing convenience.
Compact Axial Length: Designed with a short axial length, it can be easily installed in standard pump seal chambers with limited space, strong compatibility with various general-purpose pumps.
Advantages
Simple & Reliable Structure: With fewer components, the seal is not prone to failure, ensuring stable operation in long-term service.
Easy Installation & Maintenance: Simple structure and rotating seal head design, enabling quick installation and replacement, reducing maintenance time and labor costs.
Cost-Effective: Economical manufacturing process and material selection, providing high-performance sealing at a reasonable cost, suitable for large-scale industrial applications.
Good Media Compatibility: Compatible with clean water, hot water, oil, and mild corrosive media, meeting the needs of most general industrial scenarios.
Strong Interchangeability: Standardized design, directly interchangeable with other equivalent Type 208 seals from different manufacturers, facilitating retrofitting and replacement.
Applicables
Widely used in general industrial fields, including centrifugal water pumps, hot water circulation pumps, cooling water systems, light chemical process pumps, sewage and wastewater pumps, food and beverage equipment, and general-purpose industrial rotating machinery. It is especially suitable for low-to-medium pressure, clean or low-particle media sealing scenarios.
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