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Danfoss Thermostatic Valves

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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.

Danfoss AVTBMain 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



Click to View Danfoss AVTB technical  pdf

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