FNW 558A User Manual
Figure 558A
Y-STRAINER
Features:
• 200 WOG Non-Shock
(-20°F to 150°F)
• 125 PSI WSP
(125 PSI at 450°F)
• Flat Faced Flanges
• Flanged Ends Comply to
ANSI B16.1
• Perforated Stainless Steel
Screen:
2” to 4” - 1/16” Holes
5” to 12” - 1/8” Holes
• Blow-off Plug Included
• Test Pressure:
Shell (Hydro) 300 PSI
Per API 598
• Markings Per MSS SP-25
125# FLANGED 200 WOG
CAST IRON Y-STRAINER
Cv & Weight
SIZE Cv Wt (Lbs)
2 51 29
2-1/2 80 37
3 116 44
4 205 73
5 325 112
6 465 148
8 845 227
10 1350 406
12 2080 617
Figure Number Matrix
FNW 558A Size
SIZE CODE
2 = K
2-1/2 = L
3 = M
REPLACEMENT SCREENS
2 = FNW558ASK
2-1/2 = FNW558ASL
3 = FNW558ASM
4 = FNW558ASP
5 = FNW558ASS
6 = FNW558ASU
8 = FNW558ASX
10 = FNW558AS10
12 = FNW558AS12
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4 = P
5 = S
6 = U
8 = X
10 = 10
12 = 12
REPLACEMENT GASKETS
2 = FNW558AGK
2-1/2 = FNW558AGL
3 = FNW558AGM
4 = FNW558AGP
5 = FNW558AGS
6 = FNW558AGU
8 = FNW558AGX
10 = FNW558AG10
12 = FNW558AG12
125# FLANGED 200 WOG
CAST IRON Y-STRAINER
Figure 558A
Y-STRAINER
Dimensions (inches)
SIZE L H D1 D2 T B (NPT) L1 øD J M N
2 8.87 6.85 2.01 5.98 0.62 1/2" 5.51 2.24 4.75 4 0.75
2-1/2 10.75 6.93 2.50 7.01 0.69 1" 5.24 2.76 5.50 4 0.75
3 11.50 7.68 2.99 7.52 0.75 1" 5.75 3.23 6.00 4 0.75
4 13.87 9.69 4.02 9.02 0.94 1-1/4" 7.32 4.25 7.50 8 0.75
5 15.37 11.81 5.00 10.00 0.94 1-1/4" 9.45 5.28 8.50 8 0.70
6 18.50 12.01 5.98 10.98 1.00 1-1/2" 9.37 6.22 9.50 8 0.87
8 21.37 15.63 7.99 13.50 1.12 1-1/2" 12.05 8.27 11.75 8 0.87
10 26.00 19.49 10.00 15.98 1.19 2" 14.53 10.24 14.25 12 0.98
12 30.00 22.52 12.01 19.02 1.25 2" 17.40 12.28 17.00 12 0.98
DOC: FNW558AV10 Ver. 07/2018
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The•FNW•logo•is•a•registered•trademark•of•Ferguson•Enterprises,•Inc.,•PL•Sourcing,•PO•Box•2778,•Newport•News,•VA•23609
The•contents•of•this•publication•are•presented•for•information•purposes•only,•and•while•effort•has•been•made•to•ensure•their•accuracy,•they•are•not•to•be•construed•as•
warranties•or•guarantees,•expressed•or•implied,•regarding•the•products•or•services•described•herein•or•their•use•or•applicability.••All•sales•are•governed•by•our•terms•and•
conditions,•which•are•available•on•request.••We•reserve•the•right•to•modify•or•improve•the•designs•or•
verify•that•you•have•the•most•recent•product•
•or•other•documentation•prior•to•the•installation•of•these•products.
Ref.
No.
1 Body Cast•Iron,•ASTM•A126•Class•B 1
2 Screen Stainless•Steel,•AISI•304 1
3 Gasket Graphite•&•Steel 1
4 Cover Cast•Iron,•ASTM•A126•Class•B 1
5 Plug Malleable•Iron 1
6 Nut Carbon•Steel,•ASTM•A307 4•to•12
7 Stud Carbon•Steel,•ASTM•A307 4•to•12
Standard Materials
Description Material Qty
•of•our•products•at•any•time•without•notice.••Always•
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