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Dimensions of Spades & Ring Spacers - ASME B16.48

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 Dimensions of Spades & Ring Spacers - ASME B16.48

Pressure Class 150

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 45 16 126 3 32
3/4 54 21 131 3 32
1 64 27 136 3 32
1¼ 73 42 145 6.4 32
1½ 83 48 145 6.4 32
2 102 61 155 6.4 32
2½ 107 73 170 6.4 32
3 133 89 170 6.4 32
3½ 159 102 202 9.7 38
4 172 114 202 9.7 38
5 194 141 225 9.7 38
6 219 168 225 12.7 38
8 276 219 267 12.7 38
10 337 273 322 15.7 44
12 406 324 357 19.1 44
14 448 356 378 19.1 44
16 511 406 410 22.4 44
18 546 457 427 25.4 51
20 603 508 455 28.4 51
24 714 610 512 31.8 51
NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
Ring or Paddle Spacer and Spade or Paddle blank

Pressure Class 300

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 51 16 129 6.4 32
3/4 64 21 136 6.4 32
1 70 27 139 6.4 32
1¼ 79 42 150 6.4 32
1½ 92 48 150 6.4 32
2 108 61 158 9.7 32
2½ 127 73 177 9.7 32
3 146 89 177 9.7 32
3½ 162 102 205 12.7 38
4 178 114 205 12.7 38
5 213 141 240 15.7 38
6 248 168 240 15.7 38
8 305 219 281 22.4 38
10 359 273 333 25.4 44
12 419 324 363 28.4 44
14 483 356 395 31.8 44
16 536 406 422 38.1 44
18 594 457 450 41.1 51
20 651 508 480 44.5 51
24 772 610 540 50.8 51
NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
Ring or Paddle Spacer and Spade or Paddle blank

Pressure Class 600

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 51 16 129 6.4 32
3/4 64 21 136 6.4 32
1 70 27 139 6.4 32
1¼ 79 37 150 9.7 32
1½ 92 43 150 9.7 32
2 108 55 158 9.7 32
2½ 127 67 177 12.7 32
3 146 83 177 12.7 32
3½ 159 96 211 15.7 38
4 191 108 211 15.7 38
5 238 135 248 19.1 38
6 264 162 248 22.4 38
8 318 212 288 28.4 38
10 397 265 352 35.1 44
12 454 315 381 41.1 44
14 489 346 398 44.5 44
16 562 397 435 50.8 44
18 610 448 459 53.8 51
20 679 497 493 63.5 51
24 787 597 547 73.2 51
NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
Ring or Paddle Spacer and Spade or Paddle blank

Pressure Class 900

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 60 16 134 6.4 32
3/4 67 21 137 6.4 32
1 76 27 142 6.4 32
1¼ 86 37 151 9.7 32
1½ 95 43 151 9.7 32
2 140 55 174 12.7 32
2½ 162 67 186 12.7 32
3 165 83 186 15.7 32
4 203 108 217 19.1 38
5 244 135 259 22.4 38
6 286 162 259 25.4 38
8 356 212 307 35.1 38
10 432 265 370 41.1 44
12 495 315 401 47.8 44
14 518 346 412 53.8 44
16 572 397 440 60.5 44
18 635 448 471 66.5 51
20 696 497 501 73.2 51
24 835 597 571 88.9 51
NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
Ring or Paddle Spacer and Spade or Paddle blank

Pressure Class 1500

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 61 16 135 6.4 32
3/4 67 21 137 9.7 32
1 76 27 142 9.7 32
1¼ 86 35 151 9.7 32
1½ 95 41 151 12.7 32
2 140 53 174 12.7 32
2½ 162 63 190 15.7 32
3 172 78 190 19.1 32
4 206 102 219 22.4 38
5 251 128 256 28.4 38
6 279 154 256 35.1 38
8 349 203 303 41.1 38
10 432 255 370 50.8 44
12 518 303 412 60.5 44
14 575 333 442 66.5 44
16 638 381 472 76.2 44
18 702 429 504 85.9 51
20 752 478 530 95.3 51
24 899 575 603 111.3 51
NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
Ring or Paddle Spacer and Spade or Paddle blank

Pressure Class 2500

NPS Outside
Dia
A		 Inside
Dia
B		 Center
to
End
C		 Thick
ness
t		 Handle
Width
W
1/2 67 16 137 9.7 32
3/4 73 21 140 9.7 32
1 83 27 145 9.7 32
1¼ 102 35 161 12.7 32
1½ 114 41 161 15.7 32
2 143 53 175 15.7 32
2½ 165 63 201 19.1 32
3 194 78 201 22.4 32
4 232 102 232 28.4 38
5 276 128 273 35.1 38
6 314 154 273 41.1 38
8 384 198 321 53.8 38
10 473 248 390 66.5 44
12 546 289 427 79.2 44
NPS Outside
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

Ring Spacer and Spade with Raised Face
  • 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.

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