Reliable, high-capacity thermal storage engineered for your facility by Samuel Pressure Vessel Group.
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As commercial, industrial and mission-critical facilities face pressures to optimize energy usage, high-performance thermal management is essential. Thermal Energy Storage (TES) tanks act as bulk energy management assets, storing chilled or heated thermal energy during low demand periods and releasing it during peak hours. These tanks help systems stabilize facility cooling loops, improve chiller efficiency, and protect mechanical infrastructure against sudden operational surges.
About the Samuel Team
Leveraging over four decades of pressure vessel engineering, Samuel Pressure Vessel Group's experienced team of ASME-certified welders, design and build custom-engineered TES tanks tailored to complex fluid dynamics, varied operating pressures, and demanding environmental conditions across diverse industrial sectors.
Materials and
Fabrication
Features heavy-wall fabrication up to 6" thick in carbon steel and 3" thick in stainless/alloys.
Sizing and
Production Capacity
Vessel diameters range from 6" up to 192", with total fabrication weight handling up to 80 tons (160,000 lbs).
Precision Machining
and Forming
Equipped with CNC HD plasma cutting (up to 2" thick), lights-out CNC burning, precision CNC machining, and CNC rolling up to 10" in length and 1" thick.
Pressure Ratings
and Code Approvals
Designed for operating conditions ranging from full vacuum up to 10,000 PSI. Special design certifications include ABS, CE/PED, CRN, AS1210, and more.
Integrated
Structures
Custom ladder and platform design and manufacturing integrated directly into vessel assemblies.
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A Thermal Energy Storage (TES) tank is a heavy-duty, pressurized fluid vessel designed to store and release thermal energy on demand. Acting as a bulk "thermal battery" within a facility's HVAC or process cooling infrastructure, a TES tank decouples thermal energy generation from immediate cooling consumption.
How They Work:
Temperature Separation
TES tanks keep a natural separation layer, called the thermocline, dividing cold water, which sinks from warm water that floats to the top of the tank.
Gentle Water
Flow
Special diffusers at the top and bottom slowly move water in and out of the tank keeping hot and cold water completely separate inside.
High-Pressure Reliability
Built to withstand high system pressure, ASME-certified TES tanks integrate directly into high-pressure hydronic loops, preventing system pressure drops or fluid loss during rapid load shifts.
40
Years of Experience
60,000
Pressure Vessels Produced Annually
400
ASME-Certified Welders
4
Facilities Across North America
In high-density mission critical environments, TES tanks act as a vital buffer to ensure uninterrupted thermal performance and cost efficiency. By integrating pressurized ASME-certified tanks into your infrastructure, facilities can optimize energy consumption and maintain system reliability across three essential functions:
Continuous Cooling: Pressurized ASME-certified TES tanks operate as a thermal buffer. Primary/secondary chilled water pumps pull stored cold water from the tank, guaranteeing zero interruption in supply water temperature until chillers recover.
Peak Shifting: Data Centers run chillers at full capacity during off-peak hours storing lower-kW/ton chilled water. During peak daytime hours, or extreme weather conditions, the facility will discharge the TES tank to supplement the chillers, lowering peak Power Usage Effectiveness (PUE) and operational spend.
Loop Stability: An integrated TES tank lowers return-water temperature surges and pressure fluctuations, stabilizing loop pressures across massive facility infrastructure.
ASME Section VIII, Division 1 and 2 Certifications
ISO 9001: 2015 Standard Certified
API 650 / API 12F / AWWA D100
ASME B31.3 Process Piping
National Board "U", "U2", "UM", and "NB" stamps quallified