Product Benefits

The Zero Contamination stem seal is suitable for use in flammable applications in the BioPharm, pharmaceutical, and chemical industries. It eliminates a possible source of contamination from the presence of graphite in the stem seal. In this instance, the HermetiX™ stem seal is made solely from FDA-approved materials, thus avoiding possible rejection due to batch contamination.

The 3-piece body construction allows for in-line maintenance and replacement of internal parts.

ESI can supply valves manually or build your required assembly -from fitting an accessory such as a spring return handle to a fully actuated valve including a switch box and solenoids.

Technical Data

Size Range:  1/4″ – 6″ (DN8 – DN150)

Pressure range: Class 900/400

End Connections: Threaded, welded, flanged

Operation: Lever or gear operated, pneumatic or electric actuated


  • Bio Pharma
  • Pharmaceutical
  • Chemical Industry

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