Danfoss DMB, DCB Data sheet
Data Sheet
Hermetic bi-flow filter drier
Type DMB and DCB
DMB and DCB are for use in liquid lines on heat pumps.
Hermetic bi-flow filter driers, types DMB and
DCB are for use in liquid lines on heat pumps.
Hermetic bi-flow filter driers have built-in check valves which ensure that refrigerant liquid always flows through the filter driers from the outer side of the filter core towards the center. Thus all dirt particles are retained irrespective of flow direction.
DMB and DCB filter driers ensure fast and effective adsorption of moisture as well as organic and inorganic acids.
When building heat pump systems, the use of bi-flow filters can, depending on the type of system, save up to ten solder connections. This reduces production costs and the number of potential leakage points.
Available with flare and solder (cu-plated steel) connections.
For other connections please contact your
Danfoss Sales Representative.
AI192386436430en-000401en-000401
Hermetic bi-flow filter drier, Type DMB and DCB
Features
The Core type DMB
•100% 3Å Molecular Sieve core
•High drying capacity minimizing the risk of acid formation (hydrolysis)
•Recommended for use with HFO, HC, HFC and HCFC refrigerants
•Will not deplete oil additives
The Core type DCB
•80% 3Å Molecular Sieve with 20% activated alumina
•Perfect core blend for systems that operate at high condensing temperatures and require high drying capacity
•Recommended for use with HFO, HC, HFC and HCFC refrigerants
The Shell
•PED approved for PS 46 bar
•Available with flare and solder (cu-plated steel) connections
•Optimum flow characteristics and dirt retention
•The check valves are not sensitive to dirt and give minimum restriction, irrespective of flow direction
The Filter
•Effective dirt removal to 25 μm
•No dirt released by reversing the flow direction
•Available in sizes 8 – 30 cubic inches
Construction
Figure 1: Flow direction
Product specification
Technical data
Figure 2: Flare connection
Table 1: Surface and volume
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Solid core surface |
Solid core volume |
Filter drier volume |
Filter drier volume |
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Filter |
(shell volume) |
(net volume) |
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[cm2] |
[cm3] |
[l] |
[l] |
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DMB/DCB 08 |
73 |
80 |
0.10 |
0.088 |
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DMB/DCB 16 |
100 |
145 |
0.30 |
0.234 |
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DMB/DCB 30 |
250 |
365 |
0.49 |
0.322 |
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© Danfoss | Climate Solutions | 2021.08 |
AI192386436430en-000401en-000401 | 2 |
Hermetic bi-flow filter drier, Type DMB and DCB
Figure 3: Solder connection (cu-plated steel)
Table 2: Acid capacity
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Filter |
Acid capacity (1) |
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[g] |
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DCB 08 |
0.96 |
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DCB 16 |
1.29 |
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DCB 30 |
3.16 |
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(1) Adsorption capacity of oleic acid at 0.05 TAN (Total Acid Number).
Temperature range: -40 – 70 °C
Dirt retention
Particles > 25 μm
Identiƒcation
Table 3: Type codes
Type |
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Codes |
Description |
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Filter drier |
D |
Drier |
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Solid core |
C |
80% Molecular Sieve / 20% activated alumina |
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M |
100% Molecular Sieve core |
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Application |
B |
Bi-flow |
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08 |
8 in.3 |
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Filter housing volume (approx.) |
16 |
16 in.3 |
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30 |
30 in.3 |
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2 |
1⁄4 in. / 6 mm |
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3 |
3⁄8 in. / 10 mm |
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Connection (filter connection in 1⁄8 of an inch incre- |
4 |
1⁄2 in. / 12 mm |
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ments) |
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5 |
5⁄8 in. / 16 mm |
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7 |
7⁄8 in. / 22 mm |
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9 |
11⁄8 in. |
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Connection type |
(blank) |
Flare connection |
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s |
Solder connection (cu-plated steel connector) |
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Example for type codes |
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D |
Filter drier |
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M |
Solid core |
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B |
Application |
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16 |
Size (volume) |
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4 |
Connection (filter connection in 1⁄8 of an inch increments) |
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s |
Connection type |
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© Danfoss | Climate Solutions | 2021.08 |
AI192386436430en-000401en-000401 | 3 |
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