High Sample Temperature Valve

Protect pumps, sensors and analysers when sample temperature moves outside the expected operating range

High Sample Temperature shut-off valves provide mechanical temperature-based protection for sample lines, sensors, analysers and pump-related systems. Installed where temperature needs to be controlled before fluid reaches downstream equipment, the valve remains open during normal operation and closes automatically when the set temperature is exceeded, helping protect connected equipment and maintain safer, more reliable system operation.

Protects connected equipment when temperature conditions change

Pumps, sensors, analysers and instruments are often selected around defined operating conditions. If sample temperature moves outside the intended range, the HST valve provides a mechanical shut-off point to help protect downstream equipment from unsuitable process conditions.

Supports sensor and analyser reliability

Measurement equipment depends on a suitable and consistent sample. The HST valve helps prevent fluid reaching sensors or analysers when temperature exceeds the selected set-point, supporting more reliable monitoring and reducing avoidable equipment risk.

Adds a simple protection layer to pump and dosing systems

In pump-fed or dosing-related applications, temperature changes can affect system safety, measurement feedback or downstream component suitability. A temperature-based shut-off valve gives the system a straightforward mechanical safeguard without needing external power or signal.

Works automatically without electrical control

The valve is self-operating and controls flow based on fluid temperature. It does not need external power or a control signal, making it useful as a simple independent protection device within pump, sensor and sampling arrangements.

Automatically resets when conditions return to normal

Once the fluid temperature falls below the reset point, the valve opens again and allows flow to resume. This makes it suitable for systems where temporary temperature excursions need to be managed without manual valve operation.

Downloads

Datasheet
Manual

Key features

  • Temperature-based automatic shut-off
  • Protects pumps, sensors and analysers
  • Self-operating mechanical valve
  • No external power or signal required
  • Installed in sample or process lines
  • Closes when the set temperature is exceeded
  • Automatically resets when temperature falls
  • Stainless steel construction
  • Ram-type plug for tight shutoff
  • Multiple set-points available
  • Suitable for sample conditioning systems
  • Rated to 3000 PSIG / 207 BAR

Typical applications

  • Pump protection in temperature-sensitive systems
  • Sensor protection in sample lines
  • Process analyser sample lines
  • Sample cooler outlet protection
  • Chemical dosing control feedback loops
  • Conductivity monitoring systems
  • pH and ORP monitoring systems
  • Chlorine analyser sample lines
  • Boiler water sampling systems
  • Cooling water monitoring
  • Process water monitoring
  • Sampling panels and OEM systems

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