Danfoss RA-NCX, RLV-CX Data sheet
Data Sheet
Chrome plated radiator valves type RA-NCX and
lockshield valves type RLV-CX
Application
RA-NCX angle RA-NCX straight RA-NCX left angle RLV-CX straight RLV-CX angle
Ordering and Data
RA-NCX and RLV-CX is a series of chrome plated
radiator valves and lockshield valves, especially
designed for use with design radiators. A new
tailpiece with an O-ring seal ensures an
aesthetically appealing connection to the
radiator without the need for sealing tape or
compound.
RA-NCX valve bodies are equipped with a k
limiting device for pre-setting of max. water flow.
RA-NCX are supplied with a protective cap and
adjusting screw, which can be used for manual
regulation during the construction phase. The
protective cap must not be used as a manual
shut off device.
The pressure pin of the gland seal is made of
chrominium steel and works in a lifetime
lubricated O-ring. The complete gland seal can
be replaced without draining down the system.
RA-NCX radiator valve with integrated pre-setting
V
All types of thermostatic sensors in the Danfoss
RA 2000 series and RAX design series can be used
with RA-NCX.
Compression fittings are available in chrome
finish.
RLV-CX lockshield valves enables each radiator to
be shut off individually to allow trouble-free
maintenance or repair without affecting other
radiators in the system.
Max. water flow through RLV-CX is 2.5 m3/h.
Factory setting is fully open valve.
In order to avoid deposition and corrosion the
composition of the hot system water must be in
accordance to the VDI 2035 guide line (Verein
Deutscher Ingenieure).
Type Size Series
Angle
Straight D 013G4238
Angle right 013G4239
Angle left 013G4240
Angle F 013G4247
Straight F 013G4248
Danfoss Heating Solutions VDVJF202 © Danfoss 11/2010 1
DN 15
D
Connection
Inlet Outlet
Rp ½
R ½
Code no.
013G4237
Data Sheet Chrome plated radiator valves type RA-NCX and lockshield valves type RLV-CX
Pre-setting
Code no.
1 2 3 4 5 6 7 N N
013G4237
013G4238
013G4239
013G4240
0.04
(0.04)
0.09
(0.09)
013G4247
013G4248
1)
kv-values are stated for RA-NCX in connection with RA2000 sensors (RAX sensors). The kv-value
indicates the water flow (Q) in m3/h at a pressure drop (∆p) across the valve of 1 bar;
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.
2)
The kvs-value states the flow Q at a maximum lift, i.e. at fully open valve at setting N.
RLV-CX lockshield valve
kv-max1) (m3/h at ∆p = 1 bar) k
0.16
(0.16)
0.25
(0.24)
0.36
(0.31)
0.43
(0.37)
0.52
(0.42)
0.73
(0.53)
vs
0.90
2)
Accessories
Type Size
Angle
Straight 003L0274
DN 15 R ½ Rp ½ 0.2 0.4 0.65 1.0 1.3 1.7 1.9 2.1 2.3 2.5
Max working pressure:
10 bar
Connection
Inlet Outlet ¼ ½ 1 1½ 2 2½ 3 3½ 4
Max differential pressure:
0.6 bar
Flow limitation: kv-values (m3/h) for number of turns
Test pressure:
16 bar
Max working temperature:
120˚C
k
vs
Code no.
003L0273
Product Code no.
Gland seal for RA-NCX (10 pcs.) 013G0290
Drain tap with 3/4" hose nozzle 003L0152
Brass handwheel - temporarily replacement for the thermostat when the radiator is
013G3300
drained
Chrome compression fitting for 10 mm steel and copper tubes (10 pcs.) 013G4192
Chrome compression fitting for 12 mm steel and copper tubes (10 pcs.) 013G4193
Chrome compression fitting for 14 mm steel and copper tubes (10 pcs.) 013G4194
Chrome compression fitting for 15 mm steel and copper tubes (10 pcs.) 013G4195
Chrome compression fitting for 16 mm steel and copper tubes (10 pcs.) 013G4196
Chrome compression fitting for 16 x 2.5 mm PEX tubes (10 pcs.) 013G4198
Chrome compression fitting for 15 x 2.5 mm PEX tubes (10 pcs.) 013G4199
Chrome compression fitting for 16 x 2 mm AluPEX tubes (10 pcs.) 013G4200
O-rings for self sealing tailpiece (5 pcs) 013G4149
2 VDVJF202 © Danfoss 11/2010 Danfoss Heating Solutions
1.
2.
6 mm
Data Sheet Chrome plated radiator valves type RA-NCX and lockshield valves type RLV-CX
Principle
Setting
RA-NCX angle RA-NCX straight RA-NCX angle right
RA-NCX
The presetting values can be adjusted easily and
accurately without the use of tools:
Find the reference mark
▪
Lift and turn the setting ring until the desired
▪
presetting aligns with the reference mark
Presetting range
1. Reference
mark
2. Factory
setting /
one-pipe
system
RLV-CX
Setting of max. water flow:
Close the valve by means of a 6 mm Allen key
▪
Regulate the water flow by opening the valve
▪
The capacity diagrammes on page 3 show the water flow at 1/4 - 4 turns and
for fully open valve (kvs).
Danfoss Heating Solutions VDVJF202 © Danfoss 11/2010 3
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