Data Sheet
RA-N / RA-U PURE radiator valves with presetting
Application
RA-N PURE straight |
RA-N PURE Angle |
RA-U PURE |
All RA-N/ RA-U PURE valve bodies can be used together with all types of thermostatic elements in the RA 2000 series and with TWA-A thermal actuators.
RA-N/ RA-U PURE valves are used in two-pipe heating systems and comes in series S.
RA-N/ RA-U PURE valves are fitted with a kv limiting device for pre-setting of max. water flow and
are available with the setting ranges: in the table below.
Each valve body is supplied with a protective cap, which can be used for manual regulation during the construction phase. This cap must not be used as a manual shut off device. A special manual shut
off device is available as an accessory.
RA-N/ RA-U PURE valve bodies are manufactured from Eco brass contains less than 0.1% lead with nickel plating.
The pressure pin of the gland seal is of low lead metal and works in a lifetime lubricated O-ring. The complete gland seal assembly can be replaced without draining down the system.
In order to avoid deposition and corrosion the composition of the hot water must be in accordance with the VDI 2035 guideline (Verein Deutscher Ingenieure). It is recommended that formulations containing mineral oil are avoided.
Ordering and
Technical Data
|
|
Connections |
|
|
|
|
|
Pre-setting |
|
|
|
|
|||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Out- |
|
|
kv-max. |
1) |
3 |
|
|
|
|
|
|
kvs |
|
|
Type |
Design |
Inlet |
let |
|
|
|
(m |
/h at Δp = 1 bar) |
|
|
Code no |
||||||
|
|
Rp |
R |
1 |
2 |
|
3 |
|
4 |
|
5 |
6 |
|
7 |
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RA-N PURE 10 |
Straight |
3/8 |
3/8 |
0.04 |
0.08 |
|
0.12 |
|
0.19 |
0.25 |
0.33 |
|
0.38 |
0.56 |
0.65 |
015G4022 |
|
with lock |
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RA-N PURE 10 |
Angle |
3/8 |
3/8 |
0.04 |
0.08 |
|
0.12 |
|
0.19 |
0.25 |
0.33 |
|
0.38 |
0.56 |
0.65 |
015G0071 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Straight |
3/8 |
3/8 |
0.04 |
0.08 |
|
0.12 |
|
0.19 |
0.25 |
0.33 |
|
0.38 |
0.56 |
0.65 |
015G0072 |
||
|
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RA-N PURE 15 |
Angle |
1/2 |
1/2 |
0.04 |
0.08 |
|
0.12 |
|
0.20 |
0.30 |
0.40 |
|
0.51 |
0.73 |
0.90 |
015G0073 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Straight |
1/2 |
1/2 |
0.04 |
0.08 |
|
0.12 |
|
0.20 |
0.30 |
0.40 |
|
0.51 |
0.73 |
0.90 |
015G0074 |
||
|
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RA-N PURE 20 |
Straight |
3/4 |
3/4 |
0.10 |
0.15 |
|
0.17 |
|
0.26 |
0.35 |
0.46 |
|
0.73 |
1.04 |
1.40 |
015G0076 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Connection |
|
|
|
|
|
|
Pre-setting |
|
|
|
|
|
|
||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Type |
Design |
Inlet |
Outlet |
|
|
|
k |
-max.1) (m3/h at Δp = 1 bar) |
|
|
|
|
kvs |
Code no |
|||||
|
|
|
|
|
|
|
|
v |
|
|
|
|
|
|
|
|
|
|
|
|
|
Rp |
R |
1 |
2 |
3 |
4 |
|
5 |
6 |
7 |
8 |
|
9 |
10 |
11 |
N |
|
|
|
|
|
|
|
|
||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RA-U PURE 10 |
Straight |
3/8 |
3/8 |
0.016 |
0.025 |
0.035 |
0.05 |
|
0.06 |
0.08 |
0.10 |
0.12 |
|
0.16 |
0.21 |
0.26 |
0.28 |
0.30 |
015G3022 |
with lock |
|
|
|||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1)The kv-value indicates the water flow (Q) in m3/h at a pressure drop (∆p) across the valve of 1 bar; kv = Q: √ ∆p. 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.
2)Working pressure = static + differential pressure. 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. To ensure quiet operation, maximum pressure drop should not exceed 30 to 35 kPa. The differential pressure can be reduced by the use of the Danfoss differential pressure regulators types AB-PM , ASV-P or ASV-PV.
Quality |
RA-N/ RA-U PURE valves are certified according to the European standard EN 215. |
|
|
Danfoss radiator thermostats are manufactured in factories, assessed and certified by BVC |
|
|
(Bureau Veritas Certification) against ISO 9001 and ISO 14001. |
|
|
|
|
|
© Danfoss Climate Solutions | 02/2022 | AI403040432014en-000101 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Datasheet |
RA-N / RA-U PURE radiator valves with presetting |
|||
Accessories
Presetting
Type |
|
Code Number |
|
|
|
|
Presetting key for RA-U valves & also RA-N with lock |
013G3028 |
|
|
|
|
∆p tool for pump optimization |
013G7861 |
|
|
|
|
PFM100 measuring instrument |
003L8260 |
|
|
|
|
PURE gland-seal |
015G0290 |
|
|
|
|
Service insert, Lock, RA-N 10, PURE |
015G3018 |
|
|
|
|
Service insert, RA-N 10, PURE |
015G3063 |
|
|
|
|
Service insert, RA-N 15, PURE |
015G3073 |
|
|
|
The presetting values of RA-N/ RA-U PURE valves can be adjusted easily and accurately without the use of tools (factory setting = N):
•Remove protective cap / thermostatic sensor
•Find reference mark
•Lift and turn setting ring until the aquired presetting aligns with the reference mark.
Presetting can be selected in steps from 1 to 7. (RA-U PURE 10 pre-setting steps from 1 to 11). At setting N the valve is fully open. This setting can be used as a flushing position, if the system has to be flushed out because of dirt problems. In onepipe installations, the setting N must be used.
Settings outside 1 to 7 and N should be avoided.
When the thermostatic sensor has been installed, the presetting is protected against unintended regulation.
|
|
|
|
|
|
|
Presetting |
|
|
|
Factory setting and |
||||||||||||||||||||
|
|
|
|
|
|
|
|
range |
|
|
|
|
one-pipe system |
||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Reference mark
2 |
© Danfoss Climate Solutions | 02/2022 | AI403040432014en-000101 |
Loading...