Data Sheet
RAS-B² Dynamic TRV
Application
Danfoss RAS-B2 radiator valve is a pressure independent radiator valve, designed for use in 2-pipe heating systems.
RAS-B2 dynamic valves are fitted with a flow limiting device for presetting of the maximum water flow. The valves are available with maximum water flow of 10 - 135 l/h.
RAS-B2 has a built-in pressure regulator, which keeps the differential pressure over the valve at a constant level of 0.1 bar, maintaining the set flow.
Dynamic valves are supplied with a protective cap, which can be used for manual regulation during the construction phase.
The protective cap must not be used as manual shut off device. A special manual shut off device (code no. 013G5002) should be used.
To be able to distinguish between other valve bodies of the Danfoss RA series the RAS-B2 protective cap and presetting ring are green.
RAS-B2 valve bodies are manufactured from brass with a nickel plating. The gland seal pressure pin is chrominium steel and works in a lifetime lubricated O-ring. The complete gland seal assembly can be replaced without draining down the system.
Should water treatment be used it is essential that the manufacturer’s dosing instructions are strictly observed. Formulations containing mineral oil should be avoided.
In order to avoid deposition and corrosion the composition of the hot water must be in accordance with the VDI 2035.
Ordering |
|
|
|
|
RAS-B² Pack Contents: |
|
|
||
|
|
Comprising |
Copper Pipe Fitting |
Code Number |
|
|
Diameter |
||
|
|
|
|
|
|
|
RAS-C², RA-DV |
15mm |
013G7660 |
|
|
|
|
|
|
|
RAS-C², RA-DV |
10mm |
013G7661 |
|
|
|
|
|
|
|
RAS-C², RA-DV, RLV-D |
15mm |
013G7662 |
|
|
|
|
|
|
|
RAS-C², RA-DV, RLV-D |
10mm |
013G7663 |
|
|
|
|
|
|
|
RAS-C², RA-DV, RLV-D, |
|
|
|
|
with 10mm push-fit |
15mm |
013G7664 |
|
|
fitting, drain off |
|
|
|
|
RAS-C², RA-DV, RLV-D, |
|
|
|
|
with 15mm push-fit |
15mm |
013G7665 |
|
|
fitting, drain off |
|
|
© Danfoss Climate Solutions | 02/2021 | AI358232615685en-GB0104 |
1 |
Data Sheet |
RAS-B² Dynamic TRV |
|
|
|
|
|
|
Accessories |
|
|
|
Accessories |
Code no. |
||
|
|||
|
|
|
|
|
Gland seal, 10 pcs. |
013G0290 |
|
|
|
|
|
|
∆p tool for pump optimization |
013G7861 |
|
|
Valve insert with Regulator 5 pieces |
013G7831 |
|
|
RAS-C2 Sensor only |
013G6040 |
|
|
|
|
|
|
Elbow with 10mm push fit |
013G6270 |
|
|
Elbow with 15mm push fit |
013G6275 |
|
|
Drain-off tailpiece |
003L0105 |
Quality |
Danfoss RAS-B2 Dynamic TRV is 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. against ISO 9001 and ISO 14001. |
Principles |
|
! |
Note the flow |
direction |
arrow |
For the best performance we recommend fitting the valve with the sensor mounted horizontally.
Vertical (Flow) |
Horizontal (Return) |
The Danfoss RAS-B2 radiator valve can be fitted either vertically or horizontally.
NOTE: If you are not installing a Danfoss lockshield valve (supplied in sets code, 013G7662 & 013G7663) ensure that the lockshield is fully open. No balancing on the lockshield/ return pipe.
Presetting |
The presetting values of RAS-B2 valves can be |
|
|
adjusted easily and accurately without the use of |
|
|
tools (default setting = N). |
|
|
Presetting can be selected in steps from 1 to 7: |
|
|
• Remove protective cap / thermostatic sensor. |
|
|
• Find reference mark (). |
|
|
• Turn setting ring until the aquired presetting |
|
|
aligns with the reference mark. |
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.
When the thermostatic sensor has been installed, the presetting is protected against unintended regulation.
2 |
© Danfoss Climate Solutions | 02/2021 | AI358232615685en-GB0104 |
Loading...