Expansion tanks play a critical role in maintaining pressure stability and thermal balance within closed-loop heating systems. Over time, pressure vessel fatigue, corrosion, and membrane wear can compromise system efficiency and safety. At Thermo-Tech, we offer complete expansion tank renewal and maintenance services for marine and industrial thermal oil, steam, and hot water systems.
Our renewal process involves a full assessment of the tank’s structural integrity, pressure regulation performance, and membrane condition. Based on these evaluations, our team performs replacement, repair, or recalibration using certified components and materials compliant with IMO and BV standards.
By renewing or upgrading expansion tanks, operators can prevent thermal stress, leakage, and pressure fluctuations that may cause equipment failure or operational downtime. Thermo-Tech ensures every renewed unit functions within optimal operating parameters — preserving heat system efficiency and safety.
Thermo-Tech’s expansion tank renewal service covers both pressurized and non-pressurized systems used in boilers, thermal oil circuits, and secondary heating loops. We supply and install new expansion units made from high-grade steel with corrosion-resistant coatings and durable diaphragms.
Our team conducts hydrostatic pressure testing, safety valve calibration, and venting system inspections to verify each installation’s readiness. When required, we perform on-site fabrication and system integration to minimize downtime and maintain full operational continuity.
Thermo-Tech also provides customized design modifications for existing systems, ensuring compatibility with advanced control units and safety monitoring equipment. Integration with PLC or SCADA automation platforms allows for real-time monitoring of tank pressure, temperature, and expansion volume, further improving system reliability.
Regular maintenance of expansion tanks significantly reduces the risk of overpressure, corrosion, and fluid loss — extending system lifespan and improving thermal performance.
Thermo-Tech’s Expansion Tank Renewal services ensure the safe, efficient, and long-lasting operation of marine and industrial thermal systems.
With precision engineering, certified materials, and professional maintenance, we guarantee reliable pressure control and consistent heating performance across all applications.
As a proven leader in self-service and spare parts support, we proudly collaborate with globally renowned brands such Continuously innovating and evolving, we are committed to delivering exceptional service and advancing as a global company in the marine boiler industry.