Danfoss VHX-DUO, VHX-MONO Data sheet

Data Sheet

VHX Valve Sets with RTX Temperature Limiter for Designer Radiators & Bathroom Towel Rails

Application

VHX floor connection

VHX wall connection

The VHX-sets are specially designed for towel rails and designer radiators with '50 mm bottom connection' and ½” connection to the radiator. The VHX-sets include a RTX temperature limiter for regulation of the return flow temperature.

VHX valves controls the return flow from the radiator and have several features:

▪free choice of left/right mounting direction

▪available in versions for floor or wall connection

▪built-in shut-off function

▪four different surfaces matching most radiators

The VHX sets provides the perfect finishing touch for towel rails. The aesthetically pleasing and compact design allows the sensor to be mounted underneath the towel rail, parallel with the wall.

Ordering	VHX set
	Description	Colour	Code no.	Code no.
			Straight	Angle
	VHX-DUO valve set, with RTX return flow sensor	Chrome	013G4376	013G4379
		RAL 9016	013G4378	013G4381
	VHX-MONO valve set, with RTX return flow sensor	Chrome	013G4382	013G4385
		RAL 9016	013G4384	013G4387

Compression fittings

	Description	Size	Code no.	Code no.
			Nickel plated	Chrome plated
		8 mm	013G4108	–
		10 mm	013G4110	013G4192
	For steel and copper tubes	12 mm	013G4112	013G4193
		14 mm	013G4114	013G4194
		15 mm	013G4115	013G4195
		16 mm	013G4116	013G4196
		12 x 2 mm	013G4172	–
	For AluPex tubes	14 x 2 mm	013G4174	–
		16 x 2 mm	013G4176	013G4200
		12 x 1.1 mm	013G4143	013G4197
		12 x 2 mm	013G4142	–
	For Pex tubes	14 x 2 mm	013G4144	–
		15 x 2.5 mm	013G4147	013G4199
		16 x 2 mm	013G4146	013G4198

Danfoss Heating Solutions

VDUYN402

© Danfoss

10/2011

1

Data Sheet	VHX Valve Sets with RTX Temperature Limiter for Designer Radiators & Bathroom Towel Rails
Accessories
	Product		Code no.
	Electric heating element - 47 cm - 300 W - 1.2 m w/ Schuko plug 1)		013G4167
	Electric heating element - 40 cm - 150 W - 1.2 m w/ Schuko plug 1)		013G4168
	Electric heating element - 70 cm - 600 W - 1.2 m w/ Schuko plug 1)		013G4169
	Adapter for electric heating element		013G4166
	O-ring service set for VHX MONO angle valve and VHX DUO angle valve 2)		013G4179
	O-ring service set for VHX DUO straight valve		013G4180
	O-ring service set for VHX MONO straight valve		013G4181

Technical Data

Temperature Setting

Pre-Setting

1)Electric heating elements are according to the standard UNEL 47168/68-CEE (7) xvll.

2)Complete O-ring replacement of VHX DUO angle valve requires 2 x 013G4179.

Type	Connection		P-band		kv-values [m³/h] with RAX sensor at setting1)								(kvs)
	Rad.	Sys.		1		2	3	4	5	6	7	N	N
VHX-DUO	G½A	G½	2K	0.12		0.14	0.16	0.17	0.18	0.19	0.20	0.21	0.56
			5K	0.16		0.19	0.22	0.25	0.29	0.33	0.37	0.41
VHX-	G½A	G½	2K	0.12		0.14	0.16	0.17	0.18	0.19	0.20	0.21	0.45
MONO			5K	0.16		0.19	0.22	0.25	0.29	0.33	0.37	0.41
Max. work. pressure: 10 bar, max. diff. pressure2): 0,6 bar, test pressure 16 bar, max. flow temp.: 120 °C
1)
The kv-value indicates the water flow (Q) in m³/h at a pressure drop (Δp) across the valve of 1 bar;												. The kvs-

value states the flow Q at a maximum lift, i.e. at fully open valve at setting N.

2)The maximum differential pressure specified is the maximum pressure at which the valves give satisfactory regulation. As with any device which imposes a pressure drop in the system, noise may occur under certain flow/pressure conditions. The differential pressure can be reduced by the use of the Danfoss differential pressure regulators.

RTX has - due to its mode of operation - a very	Changing the kv-setting from "N" (factory setting)
limited influence on the hydraulic balance of the	is therefore seldom required.
heating system.

XP = 0 K		min.	20	30	40	50	max.	°C
	0	I	1	2	3	4	I
XP = 5 K		min.	15	25	35	45	max.	°C

At position 0 the valve is totally closed, i.e. the frost protection is off.

Danfoss pre-settable valve assemblies incorporate easy setting adjustment with clearly engraved setting markers scaled from 1 - 7 and N. Setting values can be set quickly and precisely, without the need for tools, as follows:

▪Remove protective cap or sensor.

▪Turn Red ring to the desired setting value.

The preset level can be selected in 0.5 increments between 1 and 7 (see chart for flow rates). At setting N the valve is fully open (flushing option).

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VDUYN402

© Danfoss

10/2011

Danfoss Heating Solutions