We have designed, developed and engineered many pressure vessels with Temperature Control Systems (TCS), incorporated into their design.

Heating & Chilling:

Internal tube heat exchangers provide direct and relatively energy efficient transfer into the test medium and external jacketed heat exchangers are used when there is a requirement to maximise the internal working volume of the pressure vessel.

The heat exchangers are coupled with proprietary oil or water Temperature Control Units (TCU); ensuring constant and stable temperature control between -50°C and 400°C.

Heating Only:

Electric band heaters are clamped directly on to the vessel body and controlled using PID process controllers; providing a super-efficient and highly accurate means of heating test media. Single ceramic knuckle-band-heaters are used for smaller vessels and several band heaters; spanning multiple zones help provide uniform heat distribution for medium to large vessels.


All KWDS Temperature Control Systems (TCS) are supplied with a bespoke Armaflex insulation system; ensuring minimal heat loss and maximum efficiency. It is included in the insulation required for the pressure vessel and associated pipework.

To further improve the efficiency of our (TCS); agitation of the test medium is a viable option to consider. Thermal analysis using the latest Computational Fluid Dynamics (CFD) software can be performed to ensure optimum performance.

KW Designed Solutions has a comprehensive range of previously supplied TCS available; a unique solution to meet specific requirements can also be engineered.

Pressure vessels with temperature control systems incorporated into their design


  • Armaflex Insulation Systems
  • Electrical Band Heaters Also Fitted with Integral Cooling Fans
  • Internal Tube Heat Exchangers – Located Internal of Vessel Bore
  • Jacket Type Heat Exchangers – Fitted to OD Of Vessel Body
  • Linear Temperature Control with Low Hysteresis
  • Real-Time Data Acquisition
  • Size: Between Ø50mm to Ø1000mm Bore & Depths Of 100mm To 2000mm
  • Temperature: -50°C To 400°C
  • Volumes: 0.25 Litre To 1500 Litre


  • Allows Highly Accelerated Age Testing of Material Samples in Aggressive Media
  • Compact Integral Design Ensures Minimal Volume/ Space Loss but Maximum Efficiency
  • Provides Full API 6A PR2 Temperature Cycling Capability
  • Simple & Easy Touchpad Operation
  • Simulate Real Environmental Conditions; Variable Heating & Cooling Functionality Whilst at High Pressure

Applications & Customer Uses

Pressure Vessels supplied with Temperature Control Systems (TCS) are a common choice for customers who work within the subsea, materials and chemical research sectors.

Popular with laboratories conducting advanced materials and chemical testing use temperature control, for their HPHT autoclaves and when they are conducting accelerated ageing tests.

Customers who manufacture equipment for the subsea industry; heat & chill the test media to simulate sea water temperatures. Using heat exchangers and TCU’s enables them to accurately control the temperature for R&D or Production FAT of their in-house manufactured products in line with API 6A.

Not only are they equipped to conduct static low or high temperature testing but also temperature cycling between -20°C and 200°C for the duration of the test.

Project Examples

Project examples to follow