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 specic 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

• Classication: DNV, CRN, BV, EAC etc. To get an updated list of certication 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 specic
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 specication

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 oers 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 dierential 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 dierential pressure is 1 bar (15 psi).

For further information refer to installation guide for FIA SS.

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 4

No.

Part

Material

DIN

ISO

ASTM

1

Housing

Stainless steel (FIA SS only)

GX5CrNi19-10
EN10213-4

AISI 304

2

Gasket

Fibre, Non-asbestos

3

Cover

Stainless steel (FIA SS only)

GX5CrNi19-10
EN10213-4

AISI 304

4

Bolts

Stainless steel

A2-70

A2-70

Type 308

5

Marking label

Aluminium

6

Filter element

Stainless steel

7

Pressure relief (screw) NPT

1

⁄4”

Stainless steel

3

3

4

4
7

8
5

7

5

8

6

6

2

2

1

1

No.

Part

Material

DIN

ISO

ASTM

1

Housing

Stainless steel (FIA SS only)

GX5CrNi19-10
EN10213-4

AISI 304

2

Gasket

Fibre, Non-asbestos

3

Cover

Stainless steel (FIA SS only)

GX5CrNi19-10
EN10213-4

AISI 304

4

Bolts

Stainless steel

A2-70

A2-70

Type 308

5

Marking label

Aluminium

6

Filter element

Stainless steel

7

Pressure relief (screw) NPT

1

⁄4”

Stainless steel

8

Packing washer

Aluminium

Strainer housing, type FIA SS

Material specication

FIA SS 15 - 40 (½ in. - 1½ in.)

Table 3: FIA SS 15 - 40 (½ in. - 1½ in.)

FIA SS 50 - 65 (2 in. - 21/2 in.)

Table 4: FIA SS 50 - 65 (2 in. - 2

1

⁄2 in.)

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DIN

ANSI

ø

Connection

Size

mm/in.øDT

DIN

15mm21.3

2.3½in.

0.839

0.09120mm

26.9

2.3

3

⁄4

in.

1.059

0.09125mm

33.7

2.61in.

1.327

0.10332mm

42.4

2.6

1

1

⁄4

in.

1.669

0.10240mm

48.3

2.61½in.

1.902

0.10350mm

60.3

2.92in.

2.37

0.1165mm

76.1

2.92½in.30.11

Connection

Size

mm/in.øDT

ANSI

15mm21.3

2.8½in.

0.839

0.1120mm

26.9

2.9

3

⁄4

in.

1.06

0.1125mm

33.7

3.51in.

1.33

0.1432mm

42.4

3.6

1

1

⁄4

in.

1.67

0.1440mm

48.3

3.71½in.

1.9

0.15

Connection

Size

mm/in.øDT

ANSI

50mm60.3

2.82in.

2.37

0.1165mm733.12½in.

2.87

0.12

Strainer housing, type FIA SS

Connections

Available with the following connections:

• Butt-weld DIN (EN 10220)
◦ DN 15 - 65 (½ in. - 2½ in.)

• Butt-weld ANSI (B 36.19M)
◦ DN 15 - 65 (½ in. - 2½ in.)

Table 5: Butt-weld connections

Table 6: Butt-weld DIN (EN 10220)

Table 7: Butt-weld ANSI (B 36.19M, SCHEDULE 40)

Table 8: Butt-weld ANSI (B 36.19M, SCHEDULE 10)

Selection of strainer size

The mesh aperture size of the strainer must satisfy the requirements stated by the suppliers of the equipment to be
protected. The following recommendations of aperture size apply in general to refrigeration installations:

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All lines

First start up

50μ

Liquid Lines

Ahead of pumps

500μ [38 mesh]

After pumps

150μ [100 mesh] / 250μ [72 mesh]

In front of AKVA valves

100μ [150 mesh]

Protection of automatic regulation equipment

Generally

150μ [100 mesh] / 250μ [72 mesh]

Sensitive equipment, e.g.suction regulators with low temperature

250μ [72 mesh]

Suction Lines

Ahead of screw compressor

250μ [72 mesh]

Ahead of piston compressor

150μ [100 mesh]

Connection size (DN)

FIA SS

μ

Mesh

Wire

[mm]

Wire

[in.]

Free space

[%]

Screen area

Plain elements

Pleated elements

cm2in2cm2in

2

15 - 20 (½” -

3

⁄4”)

100-0.068

0.0033525

3.9457.0

150

100

0.10

0.0043625

3.9457.0

250720.10

0.0045125

3.9457.0

500380.16

0.006

57.6253.9457.0

25 - 40 (1” - 1½”)

100-0.068

0.003357111160

25.0

150

100

0.10

0.004367111160

25.0

250720.10

0.004517111160

25.0

500380.16

0.006

57.67111

160

25.0

50 (2”)

100-0.068

0.003357111200

31.2

150

100

0.10

0.0043687

13.5

200

31.2

250720.10

0.0045187

13.5

200

31.2

500380.16

0.006

57.68713.5

200

31.2

65 (2½”)

150

100

0.10

0.00436127

19.7

305

47.6

250720.10

0.00451127

19.7

305

47.6

500380.16

0.006

57.6

127

19.7

305

47.6

DN

FIA SS angle - plain

lter net

FIA SS angle - pleated

lter net

μ100

μ150

μ250

μ500

μ150

μ250

μ500

15

3.3

3.4

3.5

3.7

4.2--206.9

7.1

7.3

7.7

8.8--2513.8

14.0

14.5

15.2

17.2

17.9

-3223.0

23.8

24.7

25.5

29.2

30.5

-4025.1

25.5

26.4

28.1

31.4

32.6

-5045.1

45.9

47.6

50.2

56.7

58.8

62.065-

56.1

57.8

60.4

69.3

71.4

74.6

Strainer housing, type FIA SS

Table 9: Recommendations of aperture size

NOTE:



(Use lter element with removable insert for FIA SS DN15 - 40 or separate lter bag for FIA SS DN 50 - 65. 50μ insert
should normally be removed after the rst 24 hours of operation)

NOTE:



Mesh is the number of threads per inch. μ (microns) is the distance between two threads (1μ = 1 /1000 mm).

Flow coecient (DIN/ANSI)

Table 10: Flow coecient (DIN/ANSI)

Kv values

Table 11: FIA SS angle

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 7

DN

FIA SS straight - plain lter net

FIA SS straight - pleated lter net

μ100

μ150

μ250

μ500

μ150

μ250

μ500

15

2.5

2.6

2.7

2.8

3.3--205.3

5.4

5.6

5.9

6.9--2510.5

10.7

11.1

11.6

13.8

14.5

-3217.6

18.2

18.9

19.5

23.9

24.7

-4019.2

19.5

20.2

21.5

25.5

26.4

-5034.5

35.1

36.4

38.4

45.9

47.6

50.265-

42.9

44.2

46.2

56.1

57.8

60.4

Strainer sizeAC

H

F

min.

Weight

FIA SS 15 - 20 (½" -

3

⁄4")

mm

45

1056068

1.1 kg

in.

1.77

4.13

2.36

2.68

2.4 lbs

FIA SS 25 - 40 (1" - 1½")

mm

55

1327095

1.7 kg

in.

2.17

5.20

2.76

3.74

3.7 lbs

FIA SS 50 (2")

mm

60

1327792

2.8 kg

in.

2.36

5.20

3.03

3.62

6.2 lbs

FIA SS 65 (2½")

mm

70

15290107

3.8 kg

in.

2.76

5.98

3.54

4.21

8.4 lbs

Strainer housing, type FIA SS

Table 12: FIA SS straight

Dimensions and weights

Angleway

Figure 4: Angleway

Table 13: Angleway

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 8

Strainer sizeAC

C

min.

H

E

F

min.

Weight

FIA SS 15 - 20 (½" -

3

⁄4")

mm

120991336020681.4 kg

in.

4.72

3.90

5.24

2.36

0.79

2.68

3.1 lbs

FIA SS 25 - 40 (1" - 1½")

mm

155

129

1777026952.4 kg

in.

6.10

5.08

6.97

2.76

1.02

3.74

5.3 lbs

FIA SS 50 (2")

mm

148

138

1847732923.5 kg

in.

5.83

5.43

7.24

3.03

1.26

3.62

7.7 lbs

FIA SS 65 (2½")

mm

176

165

2199040

107

5.3 kg

in.

6.93

6.50

8.62

3.54

1.57

4.21

11.7 lbs

Strainer housing, type FIA SS

Straightway

Figure 5: Straightway

Table 14: Straightway

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Type

Size

FIA SS With‐

out Filter Ele‐

ment

Filter Element

100μ 150

mesh

Filter Element

150μ 100

mesh

Filter Element
250μ 72 mesh

Filter Element
500μ 38 mesh

Pleated lter

element 150μ

100 mesh

Pleated lter

element 250μ

72 mesh

Pleated lter

element 500μ

38 mesh

mm

in.

Butt-weld DIN (EN 10220) - Angleway

FIA SS 15 D ANG

15½148B5295

148H3122

148H3124

148H3126

148H3128

148H3303

148H3363

-

FIA SS 20 D ANG

20¾148B5383

FIA SS 25 D ANG

251148B5492

148H3123

148H3125

148H3127

148H3129

148H3304

148H3269

-

FIA SS 32 D ANG

321¼148B5587

FIA SS 40 D ANG

401½148B5666

FIA SS 50 D ANG

502148B5757

148H3157

148H3130

148H3138

148H3144

148H3179

148H3184

148H3189

FIA SS 65 D ANG

652½148B5851

-

148H3131

148H3139

148H3145

148H3180

148H3185

148H3190

Butt-weld ANSI (B 36.19M SCHEDULE 10) - Angleway

FIA SS 65 A10
ANG

652½148B6498

-

148H3131

148H3139

148H3145

148H3180

148H3185

148H3190

Type

Size

FIA SS With‐

out Filter Ele‐

ment

Filter Element

100μ 150

mesh

Filter Element

150μ 100

mesh

Filter Element
250μ 72 mesh

Filter Element
500μ 38 mesh

Pleated

lter

element 150μ

100 mesh

Pleated

lter

element 250μ

72 mesh

Pleated

lter

element 500μ

38 mesh

mm

in.

Butt-weld DIN (EN 10220) - Straightway

FIA SS 15 D STR

15½148B5296

148H3122

148H3124

148H3126

148H3128

148H3303

148H3363

-

FIA SS 20 D STR

20¾148B5384

FIA SS 25 D STR

251148B5493

148H3123

148H3125

148H3127

148H3129

148H3304

148H3269

-

FIA SS 32 D STR

321¼148B5588

FIA SS 40 D STR

401½148B5667

FIA SS 50 D STR

502148B5758

148H3157

148H3130

148H3138

148H3144

148H3179

148H3184

148H3189

FIA SS 65 D STR

652½148B5852

-

148H3131

148H3139

148H3145

148H3180

148H3185

148H3190

Butt-weld ANSI (B 36.19M SCHEDULE 40) - Straightway

FIA SS 15 A40
STR

15½148B6493

148H3122

148H3124

148H3126

148H3128

148H3303

148H3363

-

FIA SS 20 A40
STR

20¾148B6494

FIA SS 25 A40
STR

251148B6495

148H3123

148H3125

148H3127

148H3304

148H3304

148H3269

-

FIA SS 32 A40
STR

321¼148B6496

FIA SS 40 A40
STR

401½148B6497

Butt-weld ANSI (B 36.19M SCHEDULE 10) - Straightway

FIA SS 50 A10
STR

502148B5758

148H3157

148H3130

148H3138

148H3144

148H3179

148H3184

148H3189

FIA SS 65 A10
STR

652½148B6499

-

148H3131

148H3139

148H3145

148H3180

148H3185

148H3190

Strainer housing, type FIA SS

Ordering

The table below is used to identify the strainer required. Please note that you have to order FIA SS strainer without
element, a strainer element and accessories.

Example:
FIA SS 50 D ANG + FIA-X 50 150μ Strainer Element + Filter Bag = 148H5757 + 148H3130 + 148H3150

Butt-weld Angleway

Table 15: Butt-weld Angleway

Butt-weld Straightway

Table 16: Butt-weld Straightway

D = Butt-weld DIN
A = Butt-weld ANSI
ANG = Angleway
STR = Straightway

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 10

Part

Accessory for

Code number

Filter element μ150 with removable element μ50 for
the rst start up

FIA SS 15 - 20

148H3301

FIA SS 25 - 40

148H3302

Part

Accessory for

Code number

Filter bag

FIA SS 50

148H3150

FIA SS 65

148H3151

Part

Accessory for

Code number

Blind nut with gasket

FIA SS 50 - 65

48H3450

Strainer housing, type FIA SS

Accessories

Table 17: Filter element μ150

Table 18: Filter bag

Table 19: Blind nut with gasket

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 11

Nominal bore

DN ≤ 25 (1 in.)

DN 32 - 65 mm (1 1/4 in. - 2½ in.)

Classied for

Fluid group I

Category

Article 3, paragraph 3

II

FIA SS strainers are approved in accordance with the European standard specied in the Pressure Equipment Directive and are CE
marked.
For further details / restrictions - see Installation guide.

File name

Document type

Document topic

Approval authority

BV 03709-E0 BV

Marine - Safety Certicate

BV

033F0691.AD

Manufacturers Declaration

RoHS

Danfoss

DNV GL TAP000000S Rev. 1

Marine - Safety Certicate

DNV GL

033F0685.AJ

EU Declaration

EMCD/PED

Danfoss

033F0686.AG

Manufacturers Declaration

PED

Danfoss

033F0453.AD

Manufacturers Declaration

ATEX

Danfoss

CRN.0C16578.523467890YTN

Pressure - Safety Certicate

CRN

TSSA

Strainer housing, type FIA SS

Certicates, declarations, and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have
some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local
Danfoss representative if you have any questions.

Table 20: Compliance table FIA 250-300

Table 21: Pressure Equipment Directive (PED)

Table 22: Valid Approvals

© Danfoss | Climate Solutions | 2021.03 AI234986440196en-000901 | 12

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