The IN0120.103.BVPGG is a bellows-type mechanical seal designed for reliable shaft sealing in rotary equipment. This model belongs to the standardized IN103/IN103A series, widely represented in industrial catalogs of mechanical seals. Its construction ensures effective containment of fluids and prevention of leaks in pumps, mixers, and similar apparatus operating with a range of non-aggressive media.

**Technical Specifications and Design Features**
The seal is engineered for a nominal shaft diameter (d1) of 12 mm. Its compact design features a total seal length (L3) of 15 mm. The fixed stationary part has an external diameter (d7) of 26 mm and is manufactured from high-wear-resistant ceramic, providing a durable sealing face. The rotating counterpart, with an outer diameter (d3) of 23.5 mm, utilizes graphite as its sealing surface material, ensuring smooth operation and excellent self-lubricating properties. The metal structural components are made from corrosion-resistant AISI304 stainless steel. The elastic element is a bellows (сильфон) constructed from NBR (Nitrile Butadiene Rubber), offering good resilience and compatibility with oils, water, and many industrial fluids. The specific **розміри торцевого ущільнення**—12x26x15 mm—are critical for correct installation and interchangeability.

**Application and Operational Benefits**
The IN0120.103.BVPGG mechanical seal is suitable for applications in general industrial pumping, circulation systems, and equipment where space constraints are a consideration. The bellows-type design compensates for minor axial shaft movements and misalignments, enhancing operational reliability. The material combination of ceramic versus graphite delivers stable performance with minimal friction and heat generation. The use of AISI304 and NBR makes this seal appropriate for a variety of water-based and mild chemical services. When selecting a replacement, consulting the comprehensive **каталог торцевих ущільнень** for the IN103 series is recommended to confirm exact dimensional and material compatibility.

This seal represents a robust, standardized solution for maintenance and OEM applications, prioritizing longevity and leak-free performance in standard duty cycles. Its precise dimensions and clearly defined material specification facilitate straightforward procurement and installation.

Mechanical Seal IN0120.103.BVPGG: Ceramic-Graphite Bellows Seal for 12mm Shafts

Mechanical Seal IN0120.103.BVPGG: Ceramic-Graphite Bellows Seal for 12mm Shaft

Mechanical Seal IN0120.103.BVPGG: Compact Bellows Seal for 12mm Shafts with Ceramic-Graphite Faces