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