**Mechanical Seal IN0200.502B.QQVGG: High-Performance Bellows Seal for Demanding Applications**

The IN0200.502B.QQVGG is a precision-engineered mechanical seal belonging to the IN502B series, designed for reliable shaft sealing in pumps, mixers, and other rotary equipment. This specific model is a bellows-type seal, offering superior performance in applications where axial space is limited or where compensation for shaft endplay and runout is critical. Its construction ensures long-term operational integrity in challenging environments involving a wide range of aggressive media, elevated temperatures, and demanding pressure conditions.

**Technical Specifications and Construction Features**

This seal is defined by its robust material composition and precise dimensional parameters. The primary sealing faces are manufactured from silicon carbide (карбид кремния) for both the stationary and rotating parts. This material pairing provides exceptional hardness, excellent wear resistance, and outstanding chemical inertness, ensuring a stable leak-free interface and extended service life. The metal structural components are fabricated from AISI304 stainless steel, offering good corrosion resistance and mechanical strength.

The dynamic sealing element is a bellows (сильфонное) assembly, which eliminates the need for a dynamic O-ring, thereby reducing friction and hang-up tendencies. The secondary elastomer is made from VITON (FKM), known for its excellent resistance to high temperatures, oils, fuels, and many chemicals. Key dimensions include a shaft diameter (d1) of 20 mm, an outer diameter of the moving part (d3) of 34 mm, and an outer diameter of the fixed part (d7) of 35 mm. The overall seal length (L3) is 24 mm. These precise **розміри торцевого ущільнення** are critical for correct installation and interchangeability within pump cavities.

**Application Advantages and Selection Guidance**

The IN0200.502B.QQVGG seal is engineered for applications requiring a dependable seal against volatile or hazardous fluids. The bellows design is particularly advantageous in preventing seal failure due to clogging or crystallization of the pumped medium on the shaft. Its compact design and material selection make it suitable for the chemical processing, petrochemical, pharmaceutical, and general industrial sectors.

When selecting this seal from the comprehensive **каталог торцевих ущільнень**, it is essential to verify all dimensional parameters against the equipment's specifications to ensure a proper fit. The combination of silicon carbide faces and VITON elastomers defines its application envelope, making it ideal for services where conventional seal materials would degrade rapidly. Proper installation and alignment are paramount to achieving the documented performance and longevity.

In summary, the Mechanical Seal IN0200.502B.QQVGG represents a reliable sealing solution characterized by its durable material construction, efficient bellows design, and precisely defined geometry. It is a key component within the IN502B catalog, providing maintenance engineers and specifiers with a proven option for enhancing equipment reliability and reducing downtime in critical sealing applications.

Mechanical Seal IN0200.502B.QQVGG: Bellows-Type Seal with Silicon Carbide Faces for 20mm Shafts

Mechanical Seal IN0200.502B.QQVGG: Bellows Type with Silicon Carbide Faces for 20mm Shaft

Mechanical Seal IN0200.502B.QQVGG: Bellows Seal for Demanding Applications with VITON Elastomer