Danfoss SVA-S, SVA-L, SCA-X, CHV-X, FIA, REG-SA, REG-SB Data sheet
Specifications and Main Features
Frequently Asked Questions
User Manual
Data Sheet
Strainer housing
Type FIA
Design makes the strainer easy to install
FIA strainers are a range of angleway and
straightway 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 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.
FIA strainers are equipped with a screen mesh
of stainless steel, available in sizes 100, 150, 250
and 500μ (microns), (US 150, 100, 72, 38*).
* Mesh is the number of threads per inch. μ
(microns) is the distance between two threads
(1μ = 1/1000 mm).
AI365917233048en-00101
Strainer housing, Type FIA
Features
• Modular Concept:
◦ Each valve housing is available with buttweld F connection and with several dierent sizes.
◦ Possible to convert FIA strainers to any other product in the SVL family (Shut-o valve, regulating valve, check &
stop valve or check valve) just by replacing the complete top part.
• Fast and easy overhaul service. It is easy to replace the top part and no welding is needed.
• Filter net of stainless steel mounted direct without extra gaskets means easy servicing.
• Two types of strainer inserts are available:
◦ A plain insert of stainless steel.
◦ A pleated insert (DN 15-200) with extra large surface, which ensures long intervals between cleaning and low
pressure drop.
• FIA 15-40 (½ – 1 ½ in.): A special insert (50μ) can be used in combination with a standard version when cleaning a
plant during commissioning.
• FIA 50-200 (2 - 8 in.): A large capacity lter bag (50μ) can be inserted for cleaning plant during commissioning.
• FIA 65-200 (2½ - 8 in.) can be equipped with a magnetic insert for detention of iron particles and other magnetic
particles.
• Each strainer clearly marked with type, size and performance range.
• Housing and bonnet of low temperature steel in accordance with the requirements of the Pressure Equipment
Directive and those of other international classication authorities.
• Classication: DNV, CRN, BV, EAC etc. To get an updated list of certication on the products please contact your
local Danfoss Sales Company.
Applicable to HCFC, HFC, R717 (Ammonia) and R744 (CO2). For further information refer to the product instruction
for FIA.
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.
For more detail on pressure and temperature range; see Table 2: Pressure/Temperature range chart for SVL product
range with butt-weld connection F
Figure 1: Pressure/Temperature range chart for SVL product range with butt-weld connection F
For valve sizes DN 15 to DN 50 and DN 80:
52 bar(g) (754 psig) at -60 °C to +150 °C (-76 °F to +302 °F).
For valve sizes DN 65 and DN100:
52 bar(g) (754 psig) at -60 °C to +100 °C (-76 °FF to +212 °F),
45 bar(g) (652 psig) at +100 °C to +150 °C (+212 °F to +302 °F).
For valve size DN 125:
52 bar(g) (754 psig) at -40 °C to +50 °C (-40 °F to +122 °F)
43 bar(g) (623 psig) at -60 °C to -40 °C (- 76 °F to -40 °F),
42 bar(g) (609 psig) at +50 °C to +100 °C (+122 °F to +212 °F),
36 bar(g) (522 psig) at +100 °C to+150 °C (+212 °F to +302 °F).
For valve size DN 150:
25 bar(g) (362 psig) at -60 °C to +150 °C (-76 °F to +302 °F).
For valve size DN 200:
25 bar(g) (362 psig) at -60 °C to +100 °C (-76 °F to +212 °F),
23 bar(g) (333 psig) at +100 °C to +150 °C (+212 °F to +302 °F).
SVL housings with other connection types (DIN, ANSI, SOC and thread) are approved for a maximum working
pressure of 52 bar(g) (754 psig) at –60 °C to +150 °C (–76 °F to +302 °F) for all sizes.
The reduced pressure in some of the SVL housings with connection type F is caused by the welding onto stainless
steel pipes with reduced pipe size.
Table 2: Pressure/Temperature range chart for SVL product range with butt-weld connection F
Connection
Figure 2: F connection
Table 3: Dimensions
Available with the following connections:
• Butt-weld connection "F"
• DN 15 to 65 size: 2mm thick
• DN 80 -200 size: 3 mm thick
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.