|
1
|
2
|
3
|
4
|
5
|
6 |
7
|
8
|
9
|
10
|
11
|
|
Kelly size
|
Length drive section
|
Length Overall
|
|
Across Corners
|
Across Corners
|
Radius
|
Radius
|
Wall thickness eccentric bore
| ||
|
m
|
m
| |||||||||
|
Standard
|
Optional
|
Standard
|
Optional
|
|
mm
|
mm
|
mm
|
mm
|
mm
| |
|
LD
|
LD
|
L
|
L
|
mm
|
DC
|
DCC
|
RC
|
RCC
|
t
| |
|
+0.152 -
|
+0.152 -
|
+0.152 0
|
+0.152 0
|
DFL
|
0
|
0 -
|
1.6
|
Ref. only
|
min
| |
|
63.5
|
11.28
|
|
12.19
|
|
0
|
83.3
|
82.55
|
7.9
|
41.3
|
11.43
|
|
76.2
|
11.28
|
|
12.19
|
|
63.5
|
100.0
|
98.42
|
9.5
|
49.2
|
11.43
|
|
88.9
|
11.28
|
|
12.19
|
|
76.2
|
115.1
|
112.70
|
12.7
|
56.4
|
11.43
|
|
108.0
|
11.28
|
15.54
|
12.19
|
16.46
|
88.9
|
141.3
|
139.70
|
12.7
|
69.8
|
12.06
|
|
133.4
|
11.28
|
15.54
|
12.19
|
16.46
|
108.0
|
175.4
|
171.45
|
15.9
|
85.7
|
15.88
|
Square Kelly Drive Section
We offer square and hexagonal Kellys up to 14m long. Our Kellys are made from AISI 4145H modified alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHN and a minimum impact value of 54 Joules as per ASTM A 370 charpy are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphatized and coated with an API thread compound. Each bar or tube used to manufacture kellys have been examed with magnetic particle inspections and ultrsonic inspections. Strict inspections are through the whole process of producing to ensure high quality kellys.
Square Kellys
Square Kelly end upsets and connection
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
11
| ||
|
Kelly size
|
Upper box connection
|
Lower pin connection
| |||||||||
|
0
|
Label
|
Outside diameter
|
Bevel diameter
|
Upset length
|
Label
|
Outside diameter
|
Inside diameter
|
Upset length
| |||
|
0
|
DU
|
DF
|
LU
|
0
|
DLR
|
d
|
LL
| ||||
|
0.8
|
0.4
|
+63.5 0
|
0.8
|
+1.6 0
|
+63.5 0
| ||||||
|
63.5
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC26
|
85.7
|
31.8
|
508.0
| ||
|
Optional
|
4 1/2REG
|
146.0
|
134.5
|
406.4
|
NC26
|
85.7
|
31.8
|
508.0
| |||
|
76.2
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC31
|
104.8
|
44.4
|
508.0
| ||
|
Optional
|
4 1/2REG
|
146.0
|
134.5
|
406.4
|
NC31
|
104.8
|
44.4
|
508.0
| |||
|
88.9
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC38
|
120.6
|
57.2
|
508.0
| ||
|
Optional
|
4 1/2REG
|
146.0
|
134.5
|
406.4
|
NC38
|
120.6
|
57.2
|
508.0
| |||
|
108.0
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC46
|
158.8
|
71.4
|
508.0
| ||
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC50
|
161.9
|
71.4
|
508.0
| |||
|
Optional
|
4 1/2REG
|
146.0
|
134.5
|
406.4
|
NC46
|
158.8
|
71.4
|
508.0
| |||
|
Optional
|
4 1/2REG
|
146.0
|
134.5
|
406.4
|
NC50
|
161.9
|
71.4
|
508.0
| |||
|
133.4
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
5 1/2FH
|
177.8
|
82.6
|
508.0
| ||
|
Standard
|
6 5/8REG
|
196.8
|
186.1
|
406.4
|
NC56
|
177.8
|
82.6
|
508.0
| |||
© Brightever International Trading Ltd
