Comprehensive Plastic & Sealing Solutions
Jafri & Co. specializes in all types of plastic components, precision-engineered gaskets, and sealing systems for power transformers and electrical distribution equipment. Please note that we do not manufacture whole transformers; our expertise lies strictly in producing the high-quality plastic and rubber components used within them.
Our production facilities utilize advanced technologies to manufacture all types of transformer plastics, alongside gaskets from premium Nitrile, Neoprene, and EPDM compounds. Each component is engineered to withstand transformer oil exposure, thermal cycling, and mechanical compression while maintaining seal and structural integrity throughout the equipment's service life.
Core Capabilities
- Main Tank Gaskets: Custom fabrication of large-format tank cover gaskets for power transformers up to 100 MVA capacity, ensuring oil-tight seals under high compression.
- Bushing Gaskets: Precision die-cutting of bushing base gaskets in various elastomer grades compatible with mineral oil and synthetic dielectric fluids.
- Radiator Seals: Manufacturing of radiator flange gaskets and O-rings for cooling system assemblies with temperature resistance up to 150°C.
- Valve & Fitting Gaskets: Production of specialized seals for drain valves, pressure relief devices, and oil sampling ports in standard and custom sizes.
- Material Certification: Complete material traceability and compliance documentation for critical applications including oil resistance testing and compression set analysis.
Key Products
Main Tank Cover Gaskets
Large-format gaskets for transformer tank covers, manufactured from oil-resistant Nitrile rubber with excellent compression set resistance.
Bushing Base Gaskets
Precision-cut gaskets for high-voltage bushing installations, available in Neoprene and EPDM formulations for various voltage classes.
Radiator Flange Seals
Heat-resistant gaskets for radiator connections with superior oil compatibility and thermal stability up to 150°C continuous service.
Custom Die-Cut Gaskets
Bespoke gasket solutions for unique transformer designs, including complex shapes and multi-layer composite constructions.
Technical Specifications
| Material Types | Nitrile (NBR), Neoprene (CR), EPDM, Silicone |
|---|---|
| Thickness Range | 1.5mm to 6mm (Standard), Custom thickness available |
| Oil Resistance | Compatible with Mineral Oil, Silicone Oil, Synthetic Esters |
| Temperature Range | -40°C to +150°C (Material dependent) |
| Compression Set | Maximum 25% after 70 hours at 100°C (ASTM D395) |
| Hardness | 60-75 Shore A (Standard grades) |
| Standards Compliance | IEC 60076, IEEE C57, ASTM D2000 |