Dimensions Orifice Weld Neck RTJ flanges ASME B16.36 Class 900


flanges

 
Class 900 NPS 1-24

NPSOUT
SIDE
DIA
MIN
THK
FLG
HGT
FLG
GRV
NO
PITCH
DIA
GRV
DEPTH
OTHPE
112536.681R1650.806.35
15536.684R2068.276.35
216536.684R2382.557.92
19036.687R26101.607.92
324038.1102R31123.837.92
429044.5114R37149.237.92
638055.6140R45211.127.92
847063.5162R49269.887.92
1054569.9184R53323.857.92
1261079.4200R57381.007.92
1464085.8213R62419.1011.13
1670588.9216R66469.9011.13
18785101.6229R70533.4012.70
20855108.0248R74584.2012.70
241040139.7292R78692.1515.88
NPSOTHGRV
NO
PE
OUT
SIDE
DIA
MIN
THK
FLG
HGT
FLG
PITCH
DIA
GRV
DEPTH


NPSGRV
WIDTH
R
BTM
HGT
OVAL
RING
HUB
DIA
HUB
DIA
DIA OF
TAP
FRWXATg
18.740.825.45433.56.4
8.740.825.47048.36.4
211.910.827.08460.36.4
11.910.827.010073.06.4
311.910.827.012788.99.5
411.910.827.0159114.312.7
611.910.827.0235168.312.7
811.910.827.0298219.112.7
1011.910.827.0368273.012.7
1211.910.827.0419323.812.7
1416.661.533.3451355.612.7
1616.661.536.5508406.412.7
1819.841.539.7565457.212.7
2019.841.539.7622508.012.7
2426.972.447.6749609.612.7
NPSFRWXATg
GRV
WIDTH
R
BTM
HGT
OVAL
RING
HUB
DIA
HUB
DIA
DIA OF
TAP


NPSBOLT
CIRCLE
NO OF
BOLTS
DIA OF
HOLES
DIA
STUD
BOLTS
STUD
BOLT
L
188.943/45/8140
114.347/83/4140
2127.083/45/8140
149.287/83/4145
3190.5817/8165
4235.081.1/8190
6317.5121.1/8210
8393.71213/8240
10469.91613/8255
12533.42013/8275
14558.8201.5/8290
16616.0201.3/41.5/8305
18685.820217/8350
20749.3202.1/82375
24901.72025/8470
NPSBOLT
CIRCLE
NO OF
BOLTS
DIA OF
HOLES
DIA
STUD
BOLTS
STUD
BOLT
L
 

 

General Notes:

  • Dimensions are in millimeters, except for bolts and bolt holes.
  • All other dimensions are in accordance with ASME B16.5.
  • Ring joint flanges larger than NPS 3 will require angular meter taps.

Notes:

  • Other NPT sizes may be furnished if required.
  • Bolt lengths for raised face flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
  • Bore (B) is to be specified by the purchaser.
  • The length of the Stud Bolt does not include the height of the chamfers (points).

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TOLERANCES

Tolerances on all dimensions shall be as shown in ASME B16.5 except for those shown below.

PRESSURE TAP LOCATION

Tolerance on location of center of pressure tap hole from flange face shall be:

  • ±0.5 mm (±0.02 in.) for flanges smaller than NPS 4
  • ±0.8 mm (±0.03 in.) for flanges NPS 4 and larger

BORE DIAMETER

Bore diameter tolerance (Welding Neck flanges only) is ±0.5% of nominal value.