High Temperature Control Valves
Flow control for steam, hot oil, and other high-temperature processes.
High-temperature service requires the right valve and packing configuration. LowFlow’s Mark 708HT provides fractional flow control in services up to 1,000°F (538°C). Its finned bonnet helps cool the area around the stem packing. For applications requiring a larger valve or greater flow capacity, explore the 8000 Series and confirm the configuration for your operating temperature.
Mark 708HT Series ⟶
Finned Bonnet Fractional Flow Control Valve
8000 Series ⟶
Heavy Duty Control Valve
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Typical Applications:
- Steam Service: Precise fractional flow control on steam lines where packing life and shutoff accuracy are critical.
- Hot Oil and Thermal Fluid Systems: Regulation of high-temperature oils and thermal fluids used in heating and process loops.
- High-Temperature Gas and Liquid Processing: Metering of hot gases and liquids in refining, chemical, petrochemical, and industrial process systems.
- Pilot Plants, Test Stands, and R&D Facilities: Low-flow control for pilot plant installations, test stands, and research setups operating at elevated process temperatures.
- Processing and Specialized Processing Plants: Reliable high-temperature flow control for demanding production environments.
- Polymer and Resin Production: Precise fractional flow regulation for high-temperature polymer and resin process applications.
- Aviation and Aerospace: Accurate flow control for high-temperature test and process systems in aviation and aerospace applications.
Review the Mark 708HT Series and 8000 Series for specifications. When selecting a valve, share your process temperature, media, flow range, and pressure requirements with LowFlow.

