| Danfoss Temperature controller AVTB (PN 16)
Temperature controller AVTB (PN 16) Danfoss AVTB is self-acting temperature controller used to control the water temperature in hot water tanks, heat exchangers, oil preheaters, etc. Controller closes on rising temperature. The controller has a control valve, thermostatic actuator and handle for temperature setting. Thermostatic actuator consist of a bellows, capillary tube and sensor. The complete AVTB valve has a setting knob, a valve body, a bellows element with capillary tube and a sensor pocket. The valve is used to control the water temperature in hot-water tanks, heat exchangers, oil preheaters etc.
Main data: • DN 15, 20, 25 • kVS 1.9, 3.4, 5.5 m3/h • PN 16 • Setting range: 0…30 °C / 20…60 °C / 30…100 °C • Temperature: - Circulation water / glycolic water up to 30%: -25 … +130 °C • Connections: - Int. thread - Ext. thread (weld-on and ext. thread tailpieces) • Flow or return mounting, depending on sensor type. Ordering Complete controller including sensor stuffing box. The immersion pocket is an accessory. Small sensor Ø 9.5 × 180. The sensor is to be mounted where the system temperature is warmer than the temperature in the valve housing. Insulaton disk is factory mounted on the controller. Capillary tube length: 2 m. Including sensor Ø 18 × 210; Small sensor Ø 9.5 × 150. Capillary tube length 2.3 m. Pockets available on request AVTB Code No. DN(mm) Kvm³/h PN tmax Min.sett.temp.°C Max.sett.temp.°C Conn.(Rp) Sensor dia(mm) 003N2232 15 1.9 16 130 0 30 1/2 18Ø 003N8229 15 1.9 16 130 20 60 1/2 9.5Øx180 003N8141 15 1.9 16 130 30 100 1/2 9.5Øx150 003N3232 20 3.4 16 130 0 30 3/4 18Ø 003N8230 20 3.4 16 130 20 60 3/4 9.5Øx180 003N8142 20 3.4 16 130 30 100 3/4 9.5Øx150 003N4232 25 5.5 16 130 0 30 1 18Ø 003N8253 5 5.5 16 130 20 60 1 9.5Øx180 003N8143 25 5.5 16 130 30 100 1 9.5Øx150
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