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Valve Stem Seals

Enviroflex 500 is a low-emission valve stem sealing system. Supplied as a five ring set, consisting of three molded graphite rings and two braided header rings specially formulated from high-performance carbon yarn.

Enviroflex 500 has been developed for use in Linear and Rotary valves and has exceeded the most stringent requirements for fugitive emissions, resulting in less product loss and reduced emission penalties. Where PTFE is of concern as a potential source of corrosion, select Enviroflex 506.

  • Enviroflex 500

    Enviroflex 500

    Typical Applications: high integrity valve stem sealing to reduce fugitive emissions in the petrochemical and chemical industry

    Typical uses: valve stem seals

    • Temperature: 550°C (1022°F)
    • Max Pressure: 86 MPa (12470 psi)
    • Max Shaft Speed: NA
    • pH Limits: 0-14
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