Die Moulded Rings
Flexible graphite die moulded rings are valve stem packing rings manufactured from high purity flexible graphite foil with a corrosion inhibitor but without any binders, elastomers or fillers. EGC Die Moulded Seals are manufactured from Thermafoil® flexible graphite and, using an inventory of thousands of tools, molded in-house for applications where tight dimensional tolerances are critical. The molding process created by EGC creates a high-density ring providing resilience regardless of thermal excursions.
Graphite Moulded Sealing Rings are produced using a pre-determined length of flexible graphite tape which is then, using a mould, compressed to form a solid ring of precise density and size. the products range offered by us comprises of Graphite Products, Industrial Graphite and Graphite Stopper Rods. Manufactured with due care using latest technology, the products offered by our company are of unparalleled quality
Valve Stem Duties
- Maximum Operating Temperature
- Steam : +650⁰C Oxidising : +500⁰C Non-Oxidising : +1000⁰C
- Minimum Operating Temperature -200⁰C
Material Properties
- Compatible with media in the range pH 0-14
- No loss of volatiles at high temperature
- Lower limiting temperatures apply when used with oxidising agents
- Thermal conductivity, ring of density 1.4g/cm³ : Axial 400W/mK : Radial 6W/mK
Typical Applications
- Valves and rotary equipment handling virtually any media
- High temperature steam
- Heat transfer media
- Petroleum products
Main features
- Outstanding sealing performance over long adjustment-free periods
- Excellent chemical resistance
- Very wide temperature range
