**Mechanical Seal IN0120.4702.QQVGG**

The IN0120.4702.QQVGG is a high-performance double (tandem) mechanical seal designed for demanding applications requiring enhanced sealing security. As part of the comprehensive **catalog of mechanical seals** under the IN4702 series, this model is engineered to provide reliable, long-lasting operation in challenging environments involving aggressive media, high temperatures, or where a high degree of leakage prevention is critical.

**Design and Construction Features**
This seal is characterized by its robust tandem configuration, which incorporates two sets of sealing faces arranged in series. This design creates a barrier chamber between the seals, significantly improving containment safety and allowing for the management of pressure differentials. The primary and secondary sealing faces are both manufactured from silicon carbide (карбид кремния), a material renowned for its exceptional hardness, superior wear resistance, and excellent chemical inertness. This ensures minimal face wear and stable performance when handling corrosive or abrasive fluids. The metallic structural components are made from AISI304 stainless steel, providing good general corrosion resistance and structural integrity. The secondary elastomeric sealing elements utilize VITON (FKM), a fluoroelastomer known for its outstanding resistance to high temperatures, oils, fuels, and many chemicals.

**Precise Dimensional Specifications**
The precise **dimensions of the mechanical seal** are critical for correct installation and optimal function. The IN0120.4702.QQVGG is designed for a shaft diameter (d1) of 12 mm. Both the moving part and the fixed part share an identical outer diameter (d3 and d7) of 25 mm, contributing to a compact and balanced design. The overall seal length (L3) is 36 mm, a key parameter for ensuring proper fit within the seal chamber or gland. These standardized dimensions facilitate easy selection and replacement from the **catalog of mechanical seals**.

**Typical Applications and Benefits**
This tandem mechanical seal is ideally suited for applications in chemical processing, petrochemical industries, pumps handling volatile or hazardous fluids, and any system where a single seal failure could lead to significant safety or environmental concerns. The use of silicon carbide faces ensures extended service life even in abrasive conditions, while the VITON elastomers guarantee flexibility and sealing force retention at elevated temperatures. The AISI304 construction offers a reliable and cost-effective metallic framework. The model IN0120.4702.QQVGG represents a dependable sealing solution where operational reliability and safety are paramount, effectively preventing leakage and protecting equipment and the workplace environment.

Mechanical Seal IN0120.4702.QQVGG: High-Performance Tandem Seal for Demanding Applications The IN0120.4702.QQVGG is a robust, double-tandem mechanical seal engineered for superior sealing integrity in challenging environments. This model features a...

Mechanical Seal IN0120.4702.QQVGG: Double Tandem Design for 12mm Shaft with Silicon Carbide Faces The IN0120.4702.QQVGG is a double tandem mechanical seal designed for demanding applications. It features a 12mm shaft diameter (d1) and a total seal...

Mechanical Seal IN0120.4702.QQVGG: Tandem Design for Enhanced Leakage Protection in Demanding Applications