NGEF OLTC diverter O ring
NGEF OLTC Diverter O-Ring – Product Description
The NGEF OLTC Diverter O-Ring is a vital sealing component used in the diverter switch assembly of On-Load Tap Changers in power and distribution transformers. It is designed to provide a secure oil-tight and air-tight seal between mating surfaces, preventing transformer oil leakage and blocking the entry of moisture, dust, and contaminants. By maintaining proper sealing, the O-ring helps preserve insulation strength and ensures stable and safe tap-changing operations.
Manufactured from high-quality oil-resistant and heat-resistant elastomer materials, the NGEF Diverter O-Ring offers excellent elasticity, compression stability, and long-term durability. Its precision-moulded circular design ensures uniform contact pressure, reducing the risk of seepage and premature wear. The O-ring performs reliably under high temperature, pressure, and vibration conditions commonly found inside transformer tanks, contributing to extended equipment life and reduced maintenance requirements.


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