Our High-Precision Seamless Steel Protection Sheath Tubes (thermowells and protection sleeves) are specifically engineered to safeguard thermocouple elements, RTD sensors, and temperature probes from high temperatures, physical abrasion, high pressure, and corrosive industrial media.

Unlike standard welded tubing, these protection sleeves are manufactured using cold-drawn seamless steel technology. This completely eliminates internal weld seams and structural stress points, ensuring zero gas or liquid leakage, superior pressure-resistant strength, and maximum thermal conductivity. By shielding sensitive temperature sensors from harsh working environments, these sleeves prevent sensor drift, mechanical damage, and chemical contamination, drastically extending the operational lifespan of your temperature measurement equipment.

• 100% Seamless Tube Construction: Manufactured via precision cold-drawing to guarantee high structural integrity, uniform wall thickness, and excellent pressure resistance without structural weak points.
• Superior Thermal Response: Smooth, clean interior surfaces ensure tight contact with inserted probes for fast, accurate, and stable heat transfer.
• High Temperature & Oxidation Resistance: Sustains continuous operation under extreme thermal loads without warping, flaking, or oxidizing.
• Exceptional Corrosion & Chemical Protection: Made from high-grade stainless steel alloys that resist organic and inorganic acids, industrial solvents, and high-moisture environments.
• Leak-Proof One-Piece Design: One end is precision TIG-welded or plugged and fully sealed to ensure a gas-tight and liquid-tight seal against high-pressure fluids.
• Customizable Mounting Options: Plain straight tubes, fixed or adjustable threaded fittings (NPT, BSP, G), or welded sanitary flanges available upon request.