Dimensions of Spades & Ring Spacers - ASME B16.48


flanges

 
PRESSURE CLASS 150
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/24516126332
3/45421131332
16427136332
73421456.432
83481456.432
2102611556.432
107731706.432
3133891706.432
1591022029.738
41721142029.738
51941412259.738
621916822512.738
827621926712.738
1033727332215.744
1240632435719.144
1444835637819.144
1651140641022.444
1854645742725.451
2060350845528.451
2471461051231.851
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
PRESSURE CLASS 300
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/251161296.432
3/464211366.432
170271396.432
79421506.432
92481506.432
2108611589.732
127731779.732
3146891779.732
16210220512.738
417811420512.738
521314124015.738
624816824015.738
830521928122.438
1035927333325.444
1241932436328.444
1448335639531.844
1653640642238.144
1859445745041.151
2065150848044.551
2477261054050.851
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
PRESSURE CLASS 600
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/251161296.432
3/464211366.432
170271396.432
79371509.732
92431509.732
2108551589.732
1276717712.732
31468317712.732
1599621115.738
419110821115.738
523813524819.138
626416224822.438
831821228828.438
1039726535235.144
1245431538141.144
1448934639844.544
1656239743550.844
1861044845953.851
2067949749363.551
2478759754773.251
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
PRESSURE CLASS 900
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/260161346.432
3/467211376.432
176271426.432
86371519.732
95431519.732
21405517412.732
1626718612.732
31658318615.732
420310821719.138
524413525922.438
628616225925.438
835621230735.138
1043226537041.144
1249531540147.844
1451834641253.844
1657239744060.544
1863544847166.551
2069649750173.251
2483559757188.951
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
PRESSURE CLASS 1500
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/261161356.432
3/467211379.732
176271429.732
86351519.732
954115112.732
21405317412.732
1626319015.732
31727819019.132
420610221922.438
525112825628.438
627915425635.138
834920330341.138
1043225537050.844
1251830341260.544
1457533344266.544
1663838147276.244
1870242950485.951
2075247853095.351
24899575603111.351
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
PRESSURE CLASS 2500
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
1/267161379.732
3/473211409.732
183271459.732
1023516112.732
1144116115.732
21435317515.732
1656320119.132
31947820122.432
423210223228.438
527612827335.138
631415427341.138
838419832153.838
1047324839066.544
1254628942779.244
NPSOutside
Dia
A
Inside
Dia
B
Center
to
End
C
Thick
ness
t
Handle
Width
W
 

 

General Notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • Spade Handles shall be solid with NO openings.

Further notes:

  • Ring Spacer Handles shall have a single through indicator hole located near the end of the handle. The hole diameter shall not be less than 12 mm.
  • Wt = Thickness of the handle should be 6 mm minimum, or equal to Thickness (t) if less than 6 mm.
  • Spades and Ring Spacers should be made from a plate or forging specification, approved for use by ASME B31.3, of essentially the same chemical composition as the mating flanges and piping involved.
  • Spades & Ring Spacers according to ASME B16.48 may be used for installation between ASME B16.5 flanges
  • Depending on a customer specification, some dimensions can be different from what on this page is defined.

REMARK(S) OF THE AUTHOR...

ASME B16.48 SAID THAT SPADE HANDLES MAY HAVE NO OPENINGS.
  • For spades, which can be lift up by people that's no problem, but for a spade that weighs hundreds of kilograms, a lifting ability is needed. So it is usual, that from a certain weight and size, a hole at the top of the handle is made to give a lifting possibly. Many companies have their own rules, about the implementation of a spade handle, so there are many different types and designs.
  • RAISED FACE JOINT BLANKS

    images
  • ASME B16.48 says: The gasket seating surface finish and dimensions for raised face line blanks shall be in accordance with ASME B16.5. A raised face may be specified at the option of the purchaser.
  • A Raised Face would add machining time and complexity so the price would be higher. Call this the Bugatti or Rolls Royce of the line blind world.
  • Personally, I have seen that version once or twice somewhere. The version without Raised Face is the default and is used everywhere.