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Braukmann Alwa-Kombi-4 (V1800) Circulation throttle valve

Braukmann Alwa-Kombi-4 (V1800) Circulation throttle valve

The Alwa-Kombi-4 is used as throttle valve for hydronic balancing of warm potable water circulation systems...

Product Description

The Alwa-Kombi-4 is used as throttle valve for hydronic balancing of warm potable water circulation systems.To achieve a hydronic balance the flow in the circulation pipe is throttled by manually presetting the valve. The valve can also be equipped with a thermal actuator which allows a regulation of the water temperature in the circulation system to the exact degree. The thermal actuator can be installed without interruption of the warm water supply. When the thermal actuator 50 - 60 C (122 - 140 F) is used, a thermal disinfection according to DVGW worksheet W551 and W553 is supported. Hydronic balance is also retained during the thermal disinfection process to ensure disinfection of all pipelines and risers.

Technical Properties

  • DVGW
  • WRAS
Nominal pressure PN16
Pre-setting Yes
Max. media temperature 130 oC
Body pattern Y-pattern

Valve housing made of dezincification-resistant brass

Position indication Visible, digital pre-setting display with concealed pre-setting ring
Automatic balancing support Yes
Integrated non-return device No
Draining/filling support Yes
Additional Descriptions

WRAS appoval up to 85 oC, Suitable connections see 'Connections for Alwa-valves'.

  • Meets KTW requirements
  • For regulation according to DVGW worksheets W551 and W553
  • Valve housing and all parts with flow-contact made of corrosion-resistant, dezincification-resistant brass
  • Retrofittable automatic temperature-control with support of thermal disinfection
  • Draining option with retrofittable and removable draining adapter
  • No additional side connections to valve housing
  • Cavity-free cartridge with maintenance-free spindle sealing
  • Spindle thread is isolated from the flow
  • Seat sealing made of PTFE
  • Visible, digital presetting dial with concealed presetting handwheel
  • High accuracy due to factory calibration to every single valve

Certifications and Awards

Related Material


Product Type Connection size
DN size
Port connection
Port diameter
Kvs value
Alwa-Kombi-4 with external threads

15 mm external threads G3/4 inch 2.7

20 mm external threads G1 inch 6.4

25 mm external threads G1 1/4 inch 6.8

32 mm external threads G1 1/2 inch 16

40 mm external threads G1 3/4 inch 16
Alwa-Kombi-4 with internal threads

15 mm internal threads R1/2 inch 2.7

20 mm internal threads R3/4 inch 6.4

25 mm internal threads R1 inch 6.8

32 mm internal threads R1 1/4 inch 16

40 mm internal threads R1 1/2 inch 16
Alwa-Kombi-4 with fitted Mapress fittings

15 mm 15 mm Mapress fittings 2.7

18 mm 15 mm Mapress fittings 2.7

22 mm 20 mm Mapress fittings 6.4

28 mm 25 mm Mapress fittings 6.8

35 mm 32 mm Mapress fittings 16

42 mm 40 mm Mapress fittings 16
Alwa-Kombi-4 with fitted Sanpress fittings

15 mm 15 mm Sanpress fittings 2.7

18 mm 15 mm Sanpress fittings 2.7

22 mm 20 mm Sanpress fittings 6.4

28 mm 25 mm Sanpress fittings 6.8

35 mm 32 mm Sanpress fittings 16

42 mm 40 mm Sanpress fittings 16

Accessories and replacement parts


Image Description Product Type Downloads
Insulation shells for valve DN15 VA2510C015  
Insulation shells, for valves DN20 VA2510C020  
Insulation shells, for valves DN25 VA2510C025  
Insulation shells, for valves DN32 VA2510C032  
Insulation shells, for valves DN40 VA2510C040  
Insulation shells, for valves DN50 VA2510C050  
Draining Adapter for all types and sizes VA3400A001  
Temperature-controlled actuator for 50...60 degree C (122...140 degree F) temperature range, conforms with DVGW, W551 and W552 VA2400A002  
Temperature-controlled actuator for 40...65 degree C (104...149 degree F) temperature range VA2400B002  
Thermometer TH07K  
Sampling valve. For all sizes. Only in conjunction with drain adapter VA3400A001 VA3400C001