Mechanical seal IN0140.109QQVGG

**Mechanical Seal IN0140.109QQVGG**

The IN0140.109QQVGG is a high-performance bellows-type mechanical seal designed for reliable operation in demanding pumping applications. As part of the comprehensive **каталог торцевих ущільнень (catalog of mechanical seals)** series IN109, this model is engineered to precise specifications, ensuring optimal compatibility and sealing integrity. Its construction utilizes advanced materials to withstand aggressive media, elevated temperatures, and challenging operational conditions.

**Key Features and Construction**

This seal is characterized by its robust bellows design, which provides flexibility and compensates for axial and angular shaft misalignments, as well as wear. The primary sealing faces are manufactured from silicon carbide (карбид кремния) for both the fixed and moving parts. This material pairing offers exceptional hardness, excellent wear resistance, and superior chemical inertness, guaranteeing a long service life and consistent leak-free performance. The secondary sealing element is made from VITON fluorocarbon elastomer, known for its outstanding resistance to high temperatures, oils, fuels, and many corrosive chemicals. The structural metal components are fabricated from AISI304 stainless steel, providing necessary strength and corrosion resistance.

**Precise Dimensions and Compatibility**

Accurate **розміри торцевого ущільнення (dimensions of the mechanical seal)** are critical for proper installation and function. The IN0140.109QQVGG is designed for a shaft diameter (d1) of 14 mm. The external diameter of its fixed part (d7) measures 25 mm, with an overall seal length (L3) of 17 mm. These standardized dimensions facilitate straightforward selection and replacement from the mechanical seal catalog. The seal is classified under grade 109, indicating its specific design configuration and application range.

**Applications and Benefits**

This mechanical seal is suitable for a wide array of industrial pumps handling chemicals, solvents, hot water, and other aggressive fluids where reliable shaft sealing is paramount. The combination of silicon carbide faces and VITON elastomers ensures durability in environments where other seal materials might fail. The bellows-type construction eliminates the need for a dynamic O-ring, reducing friction and hang-up on the shaft, which is particularly advantageous in applications with crystallizing or viscous media.

For engineers and maintenance specialists, the IN0140.109QQVGG represents a dependable sealing solution. Its detailed specification within the **каталог торцевих ущільнень** allows for precise technical selection based on operational parameters and **розміри торцевого ущільнення**, ensuring equipment reliability and reduced downtime.