Data sheet X-tra™ Collection Valves for Jaga
Application
The new X-tra Collection is a TRV specially designed for towel rails and designer radiators. Its new
and innovative self-sealing ½" valve to radiator
connection makes for a seemless, elegant and
easy installation.
The towel rails valve set includes a matching lockshield valve with drain-off function. The valves
and sensors are available in Chrome and Inox.
The valve set 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,
avoiding the risk of accidentally knocking the
sensor.
Small to medium-sized convectors with valves
matching in colour or in contrast colours, is also
an interesting application for this series of valves.
DKCD VD.VJ.B1.02 © Danfoss 01/2007 1
Data sheet X-tra™ Collection Valves for Jaga
Ordering, Set Packs
Type
Description Chrome Inox
Technical data
RAX sensor, valve and lockshield valve
Set, Right mounted
Set, Left mounted
Connection kv -values [m3/h] with RAX sensor at setting¹⁾
Type Design
RA-URX
Type Design
RLV-X
Max. working pressure: 10 bar, Max. differential pressure²⁾: 0,6 bar, Test pressure 16 bar, Max. flow temperature: 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; kv = Q: √Δp.
At setting N the kv-value is stated according to EN 215, at XP = 2K
i.e. the valve is closed at 2˚C higher room temperature.
At lower settings the XP value is reduced to 0.5K of the setting value 1.
The kvs-value states the flow Q at a maximum lift, i.e. at fully open
valve at setting N.
Left mounted angle valve
Right mounted angle valve
Left mounted lockshield valve
Right mounted lockshield valve
Radiator System 1 2 3 4 5 6 7 N
R ½ M24 0.03 0.06 0.13 0.17 0.23 0.27 0.29 0.34 0.44
Connection kv -values [m3/h] at number of turns
Radiator System 0.25 0.50 0.75 1 1.5 2 k
R ½ M24 0.18 0.36 0.47 0.52 0.58 0.58 0.60
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.
013G4227
013G4323
013G4228
013G4324
N
(kvs)
vs
2 VD.VJ.B1.02 © Danfoss 01/2007 DKCD
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Data sheet X-tra™ Collection valves for Jaga
Pre-setting
Capacities
Danfoss pre-settable valve bodies incorporate easy
setting adjustment rings 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 element
· Lift setting ring
· Turn anti-clockwise to the desired engraved
setting value
· Allow setting ring to spring back into position
The preset level can be selected in 0.5 increments
between 1 and 7 (see chart on page 3 for flow
rates).
At setting N the valve is fully open (flushing
option).
Capacity with RA-URX, RLV-X and RAX sensor at a P-band between 0.5 K and 2 K.
Sizing example Alternatively the setting can be read directly in
Required heat: 0.45 kW
Cooling across radiator: 20 ˚C.
the table “Ordering and technical data”:
Flow through radiator:
0.45
Q = = 0.019 m3/h = 0.005 l/s.
20 x 1.16
Pressure drop across valve: ∆p = 1 mwg.
kv =
Q (m3/h)
√∆p (bar)
Valve setting: "2"
Valve presetting when using
RTX sensor. The sensor must be
ordered separately.
Due to the function of the RTX sensor its influence on the hydraulic balance of the heating
system is very limited. Consequently it is seldom
required to adjust the kv-setting of the valve from
the factory setting ”N”.
The table shows the reduced flow in m3/h when
applying different kv-settings:
Valve pre-setting 2K 5K
1 0,03 0,03
2 0,07 0,07
3 0,12 0,13
4 0,16 0,18
5 0,19 0,24
6 0,21 0,27
7 0,22 0,29
N 0,23 0,33
CD-ST VD.VJ.B1.02 © Danfoss 01/2007 3
Data sheet X-tra™ Collection Valves for Jaga
Construction
RA-URX - Gland seal for RAX
1. Protective cap
2. Gland seal
3. Pressure pin
4. Return spring
5. Setting cylinder
6. Valve body
7. Allen screw
8. Self-sealing gland
RLV-X
1. Self-sealing gland
2. Allen screw
3. Valve body
4. Shut-off facility
5. Cylindric guide
6. Cover cap
The valve assembly features valve body and a
self-sealing gland pre-mounted with 2 O-rings
- one for sealing against the radiator and one for
sealing in the valve housing.
The Allen-screw features an O-ring seal to ensure
a tight seal against the valve body.
In situations where radiator in- and outlets are
not suitable for O-ring seal, conventional sealing
material is used.
1
2
3
4
5
1
2
3
4
5
6
Materials in contact with water
Setting cylinder PPS
Spindle
O-rings EPDM
Valve cone NBR
Valve body Ms 58
Ms, resistant against
dezincification
8
7
6
4 VD.VJ.B1.02 © Danfoss 01/2007 DKCD
Data sheet X-tra™ Collection Valves for Jaga
Spare parts
and accessories
Fittings
Installation
Spare parts Code no.
Gland seal for RA-URX valve with RAX sensor 013G0290
Accessories Code no.
Drain and fill tap 003L0152
Relevant compression fittings are delivered by
Jaga
The self-sealing gland is mounting in radiator inlet and outlet using a 17 mm hexagonal key.
Valve and lockshield valve has matching design.
The yellow valve cap can temporarily be used to
open and shut the valve. The lockshield valve
features shut-off and draining facility.
All O-rings are of the EPDM-type which means no
mineral oils or grease are to be used.
CD-ST VD.VJ.B1.02 © Danfoss 01/2007 5
Data sheet X-tra™ Collection Valves for Jaga
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without subsequential changes being necessary in specications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Shut-off, filling
and draining
Dimensions
RLV-X
lockshield valve
RA-URX
return valve
RAX and RTX
thermostatic sensors
6 VD.VJ.B1.02 © Danfoss 01/2007 DKCD
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