Danfoss FIA SS Data sheet
Data Sheet
Strainer housing
Type FIA SS
Designed for highly demanding production environments,
where corrosion is a risk due to harsh environments
FIA SS strainers are a range of angle-way and
straight-way strainers which are carefully
designed to give favourable ow conditions.
The design makes the strainer easy to install,
and ensures quick strainer inspection and
cleaning.
FIA SS strainers are used ahead of automatic
controls, pumps, compressors etc., for initial
plant start-up and where permanent ltration
of the refrigerant is required. The strainer
reduces the risk of undesirable system
breakdowns and reduces wear and tear on
plant components.
In certain specic areas such as outdoor
applications and corrosive atmospheres, such
as coastal installations, there is a need for high
surface protection to prevent failure due to
corrosion.
Today's food safety standards often call for daily
treatment with detergents to protect against
bacteria growth, again producing a need for
high surface protection.
AI234986440196en-000901
Strainer housing, type FIA SS
Features
• Applicable to HCFC, HFC, R717 (Ammonia) and R744 (CO2) and all ammable refrigerants
• Designed to give favourable ow conditions
• Housing is made of special cold resistant stainless steel approved for low temperature operations
• Easy to disassemble for inspection and service
• Butt-weld DIN and ANSI connections
• Max. operating pressure:
◦ 52 bar (754 psig)
• Temperature range:
◦ -60 °C – 150 °C (-76 °F – 302 °F)
• Compact and light valves for easy handling and installation
• Classication: DNV, CRN, BV, EAC etc. To get an updated list of certication on the products please contact your
local Danfoss Sales Company
© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 2
Description
Features
Valve body/connection material
Stainless steel
Equipment
Cover
Connection standard
EN 10220
DIN
ASME B 36.19M SCHEDULE 10
ASME B 36.19M SCHEDULE 40
Connection type
Butt weld
Max. working pressure [bar/psig]
52 bar/754 psig
Max. Temperature range
-60 °C – 150 °C (-76 °F – 302 °F)
Packing format
Single pack
Strainer housing, type FIA SS
Portfolio overview
Figure 1: FIA SS
Table 1: Portfolio overview
Media
Refrigerants
Applicable to HCFC, HFC, R717 (Ammonia), R744 (CO2) and all ammable refrigerants. For further information please
see installation guide for FIA SS.
New refrigerants
Danfoss products are continually evaluated for use with new refrigerants depending on market requirements.
When a refrigerant is approved for use by Danfoss, it is added to the relevant portfolio, and the R number of the
refrigerant (e.g. R513A) will be added to the technical data of the code number. Therefore, products for specic
refrigerants are best checked at store.danfoss.com/en/, or by contacting your local Danfoss representative.
© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 3
-70
Pressure
-50 -30 -10 10 30 5 0 70 90 11 0 130 15 0
Temperature
-94 -58 -22 14 50 86 122 158 194 230 266 302
˚C
˚F
0
73
145
218
290
363
435
508
580
653
725
798
psi
0
5
10
15
20
25
30
35
40
45
50
55
bar
FIA SS DN15-DN65
Temperature range
-60 °C – 150 °C (-76 °F – 302 °F)
Max. operating pressure
52 bar (754 psig)
FF
II
LL
TT
EE
RR
FF
II
AA
SS
SS
DD
NN
11
55
//
½½
Strainer housing, type FIA SS
Product specication
Pressure and temperature
Table 2: Pressure and temperature
Figure 2: Pressure and temperature graph
Design
Materials
Housing
Made of stainless steel approved for low temperature operations
Strainer Insert
A lter grid and lter net of stainless steel ensure long element life. The lter net oers a very high degree of
cleanability
Marking
Figure 3: Example of marking ring, FIA SS
Installation
Installation/Maintenance
The strainer is designed to resist high internal pressures. However, the piping system in general should be designed
to avoid liquid traps and reduce the risk of hydraulic pressure caused by thermal expansion.
Install the strainer with the cover in downward position.
Danfoss recommends replacement/cleaning of the strainer when the dierential pressure loss >0.5 bar (7.3 psi) in
the liquid line and >0.05 bar (0.7 psi) in the suction line. The max. permissible dierential pressure is 1 bar (15 psi).
For further information refer to installation guide for FIA SS.
© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 4
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