Automatic expansion vessels with mass transfer are part of pressurization advanced dynamic systems. They are controlled by an air compressor which guarantees a steady pressure in the circuit, compensating fluid volumetric changes due to changes in water temperature of the system. By the use of a microprocessor, installation parameters are controlled and regulated, displayed by a 7 “ touch screen. The control unit from CRB AUTOMAT models has been developed under the brand IBAIONDO and offers the most modern connectivity interfaces (RS - 485 & Ethernet).

• Automatic expansion vessels with mass transfer for pressure maintenance systems in closed heating and cooling closed circuits
• Replaceable bladder according to EN 13831 (non potable)
• Upper bladder purger
• Control unit for regulating water pressure and volume. Include: · 7” Colour touch screen for display and system control · Compressor unit. Maximum service pressure: 8 Bar (oil free) · Load cell connected to the control unit · Pressure transmitter 4-20 mA · Solenoid valve · Non-return valve · Safety valve
• Top flange for inspection
• Color: Blue RAL-5012
• Designed and manufactured according to Directive 2014/68/UE

Optional: Auto filling water system Optional: RS-485 and Ethernet For 10 Bar Compressor, consult factory

They allow, on the one hand, to absorb the volume increases caused by the increase in the temperature of the system, as well as to maintain the pressure of the heating circuit within admissible limits. They also prevent the appearance of phenomena such as cavitation, evaporation and vacuum.

With (replaceable/non-replaceable) membrane or bladder

For open and closed circuits

For cooling, heating, solar and boling applications

For potable and non-potable water

Different materials and sizes for threaded connections