Collar gasket

NGEF Collar Gasket – Product Description

The NGEF Collar Gasket is a critical sealing component used in On-Load Tap Changer (OLTC) and diverter switch assemblies of power transformers. It is installed between mating flanges and housings to provide a reliable oil-tight and air-tight seal. By preventing leakage of transformer oil and blocking moisture or contaminants, the collar gasket plays an important role in maintaining internal insulation strength and operational safety.

Manufactured from high-quality oil-resistant rubber and synthetic elastomers, the NGEF Collar Gasket offers excellent elasticity, compression stability, and long service life. Its precision-moulded design ensures uniform pressure distribution across the sealing surface, reducing the risk of seepage and mechanical stress. The gasket is designed to perform consistently under high temperature, pressure, and vibration conditions commonly found in transformer environments.