Mark 80 Series

Mark 80 Series

Self-Operated, No External Power Source

Mark 801 Series

Mark 801/802 Series

Self-Operated, High Flow

Mark 82 Series

Mark 82 Series

Internal Piloted

Mark 85 Series

Mark 85 Series

Controlled Failure Option

Mark 86 Series

Mark 86 Series

Ambient Temperature

Mark 87 Series

Mark 87 Series

Externally Piloted

Mark 89 Series

Mark 89/89MX

Three-Way, Diverting or Mixing Service

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For accurate temperature control – count on Jordan Valve and the entire Mark 80 Series product line. Whether your application is tank heating, steam tracing, heat exchanging, air drying or regulated cooling, our regulators will maintain temperature without the need for external power or additional instrumentation.