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  • A4421 - 500
  • Class 150 Bronze Swing Check Valve, Bolted Cover
1 - Body - Bronze - B62
2 - Seat Ring - Bronze - B62 or Stainless Steel - SS304
3 - Disc Ring - Bronze - B62 or Stainless Steel - SS304
4 - Hinge - Brass - B124

Face to face acc. to ANSI B16.10
Flanges acc. to ANSI B16.24 Class 150
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Item #

Size

L

D

C

Number of Holes

h 

N/A 1/2" N/A N/A N/A N/A N/A
N/A 3/4" N/A N/A N/A N/A N/A
N/A 1" N/A N/A N/A N/A N/A
N/A 1-1/4" N/A N/A N/A N/A N/A
N/A 1-1/2" N/A N/A N/A N/A N/A
N/A 2" N/A 8 in203 mm N/A 6 in152 mm N/A 4.75 in121 mm N/A 4 N/A 0.75 in19 mm
N/A 2-1/2" N/A 8.5 in216 mm N/A 7 in178 mm N/A 5.500 in140 mm N/A 4 N/A 0.75 in19 mm
N/A 3" N/A 9.5 in241 mm N/A 7.5 in191 mm N/A 6.0 in152 mm N/A 4 N/A 0.75 in19 mm
N/A 4" N/A 11.5 in292 mm N/A 9 in229 mm N/A 7.500 in191 mm N/A 8 N/A 0.75 in19 mm
N/A 5" N/A 13.00 in330 mm N/A 10 in254 mm N/A 8.50 in216 mm N/A 8 N/A 0.88 in22 mm
N/A 6" N/A 14 in356 mm N/A 11 in279 mm N/A 9.500 in241 mm N/A 8 N/A 0.88 in22 mm
N/A 8" N/A 19.5 in495 mm N/A 13.50 in343 mm N/A 11.75 in298 mm N/A 8 N/A 0.88 in22 mm
N/A 10" N/A 24.50 in622 mm N/A 16.00 in406 mm N/A 14 1/4 in362 mm N/A 12 N/A 1.00 in25 mm
N/A 12" N/A 27.50 in698 mm N/A 19.00 in483 mm N/A 17 in432 mm N/A 12 N/A 1.00 in25 mm
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