**Mechanical Seal IN0280.9BQQVGG: Technical Specifications and Application**

The IN0280.9BQQVGG is a high-performance mechanical seal designed for demanding rotary shaft applications. This model belongs to the comprehensive IN9B/IN8B series, a key component of any industrial **catalog of mechanical seals**. Engineered for reliability, its construction utilizes advanced materials to ensure extended service life and consistent sealing performance in challenging environments, including pumps, mixers, and agitators.

**Construction and Material Composition**
The seal features a robust design with a stationary seal face and a rotating face, precisely lapped for optimal contact. The fixed part and the moving part are both manufactured from silicon carbide (карбид кремния), a material renowned for its exceptional hardness, excellent wear resistance, and superior chemical inertness. This pairing ensures minimal friction, low heat generation, and reliable operation against a wide range of aggressive media. The metallic structural components are constructed from AISI304 stainless steel, providing good general corrosion resistance and structural integrity. The secondary sealing element is made from NBR (Nitrile Butadiene Rubber), a versatile elastomer offering reliable performance with oils, water, and many industrial fluids within its temperature range.

**Precise Dimensional Data and Seal Type**
Critical **dimensions of the mechanical seal** are specified for accurate installation and compatibility. The seal is configured for a shaft diameter (d1) of 28.6 mm. The external diameter of the fixed part (d7) is 47.63 mm, while the outer diameter of the moving part (d3) measures 48.3 mm. The overall seal length (L3) is 35 mm. These precise tolerances are essential for correct fitting and function within the seal chamber. This unit is classified as a seal **with a clamping ring** (с прижимным кольцом), which facilitates secure and straightforward mounting on the shaft, ensuring the rotating face remains positively located. It carries the seal grade designation 9B, indicating its specific configuration and performance characteristics within the product line.

**Application and Benefits**
The IN0280.9BQQVGG mechanical seal is engineered to prevent leakage along rotating shafts, effectively containing process fluids and protecting equipment and the environment. Its silicon carbide faces are ideal for applications involving abrasives, corrosives, or where dry-running conditions may occasionally occur. The use of standardized dimensions and a clamping ring design simplifies maintenance and replacement procedures, reducing downtime. When selecting a seal from the **catalog of mechanical seals**, this model represents a balanced solution for general industrial service where durability and chemical resistance are paramount. Proper installation according to the specified dimensions is critical for achieving the designed sealing performance and operational lifespan.

High-Performance Mechanical Seal IN0280.9BQQVGG for Demanding Industrial Pump Applications

Mechanical Seal IN0280.9BQQVGG with Silicon Carbide Faces and NBR Elastomer for 28.6 mm Shaft

### Mechanical Seal IN0280.9BQQVGG: A High-Performance Sealing Solution for Demanding Applications The IN0280.9BQQVGG is a robust mechanical seal from the IN9B/IN8B catalog series, engineered for reliable operation in challenging environments. This seal.