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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...

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Product Description
Technical Properties

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

Approvals	DVGW WRAS
Nominal pressure	PN16
Pre-setting	Yes
Max. media temperature	130 ^oC
Body pattern	Y-pattern
Materials	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'.
Features	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

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Produkter

Product Type	Connection size	DN size	Port connection	Port diameter	Kvs value
Alwa-Kombi-4 with external threads
V1810X0015		15 mm	external threads	G3/4 inch	2,7
V1810X0020		20 mm	external threads	G1 inch	6,4
V1810X0025		25 mm	external threads	G1 1/4 inch	6,8
V1810X0032		32 mm	external threads	G1 1/2 inch	16
V1810X0040		40 mm	external threads	G1 3/4 inch	16
Alwa-Kombi-4 with internal threads
V1810Y0015		15 mm	internal threads	R1/2 inch	2,7
V1810Y0020		20 mm	internal threads	R3/4 inch	6,4
V1810Y0025		25 mm	internal threads	R1 inch	6,8
V1810Y0032		32 mm	internal threads	R1 1/4 inch	16
V1810Y0040		40 mm	internal threads	R1 1/2 inch	16
Alwa-Kombi-4 with fitted Mapress fittings
V1816Y0015	15 mm	15 mm	Mapress fittings		2,7
V1816Y0018	18 mm	15 mm	Mapress fittings		2,7
V1816Y0020	22 mm	20 mm	Mapress fittings		6,4
V1816Y0025	28 mm	25 mm	Mapress fittings		6,8
V1816Y0032	35 mm	32 mm	Mapress fittings		16
V1816Y0040	42 mm	40 mm	Mapress fittings		16
Alwa-Kombi-4 with fitted Sanpress fittings
V1817Y0015	15 mm	15 mm	Sanpress fittings		2,7
V1817Y0018	18 mm	15 mm	Sanpress fittings		2,7
V1817Y0020	22 mm	20 mm	Sanpress fittings		6,4
V1817Y0025	28 mm	25 mm	Sanpress fittings		6,8
V1817Y0032	35 mm	32 mm	Sanpress fittings		16
V1817Y0040	42 mm	40 mm	Sanpress fittings		16

Accessories and replacement parts

Accessories

Image	Description	Product Type	Downloads
	Union nut, sealing and red bronze tailpiece for external threads, DN15	VA7400A015
	Union nut, sealing and red bronze tailpiece for external threads, DN15	VA7400A016
	Union nut, sealing and red bronze tailpiece for external threads, DN20	VA7400A018
	Union nut, sealing and red bronze tailpiece for external threads, DN20	VA7400A020
	Union nut, sealing and red bronze tailpiece for external threads, DN25	VA7400A025
	Union nut, sealing and red bronze tailpiece for external threads, DN32	VA7400A032
	Union nut, sealing and red bronze tailpiece for external threads, DN40	VA7400A040
	Union nut, sealing and externally threaded red bronze tailpiece for external threads DN15	VA7401A015
	Union nut, sealing and externally threaded red bronze tailpiece for external threads DN20	VA7401A020
	Union nut, sealing and externally threaded red bronze tailpiece for external threads DN25	VA7401A025
	Union nut, sealing and externally threaded red bronze tailpiece for external threads DN32	VA7401A032
	Union nut, sealing and externally threaded red bronze tailpiece for external threads DN40	VA7401A040
	Union nut with Mapress-fitting for external threads, DN15	VA7403A015
	Union nut with Mapress-fitting for external threads, DN15	VA7403A018
	Union nut with Mapress-fitting for external threads, DN20	VA7403A020
	Union nut with Mapress-fitting for external threads, DN25	VA7403A025
	Union nut with Mapress-fitting for external threads, DN32	VA7403A032
	Union nut with Mapress-fitting for external threads, DN40	VA7403A040
	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
	Draining Adapter for all types and sizes	VA3400A001
	Thermometer	TH07K
	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
	Sampling valve. For all sizes. Only in conjunction with drain adapter VA3400A001	VA3400C001
	Sanpress red bronze crimp fitting with sealing, DN15	VA7404A015
	Sanpress red bronze crimp fitting with sealing, DN15	VA7404A018
	Sanpress red bronze crimp fitting with sealing, DN20	VA7404A020
	Sanpress red bronze crimp fitting with sealing, DN25	VA7404A025
	Sanpress red bronze crimp fitting with sealing, DN32	VA7404A032
	Sanpress red bronze crimp fitting with sealing, DN40	VA7404A040
	Union nut, sealing and internally threades red bronze tailpiece, DN15	VA7405A015
	Union nut, sealing and internally threades red bronze tailpiece, DN20	VA7405A020
	Union nut, sealing and internally threades red bronze tailpiece, DN25	VA7405A025
	Union nut, sealing and internally threades red bronze tailpiece, DN32	VA7405A032
	Union nut, sealing and internally threades red bronze tailpiece, DN40	VA7405A040