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Phone：19905158858
Fax：86 - 515 – 86582386
E-mail：sale@chinateda.com
Add：Hengji Town, Jianhu County, Yancheng City, Jiangsu Province
Copyright © Yancheng Teda Driling And Production Equipment Co.,Ltd.
Casing coupling
The tubing coupling of Teda Special Pipe Fittings Co., Ltd. is manufactured in accordance with API 5CT standard. Materials steel grade is H40, J55, K55, M65, N80, L80, C90, T95, P110, Q125. The outer diameter of tubing and casing is in the range of 41/2"~20".
Length and Short Round Thread Casing Couplings Dimensions
|
Nominal size
external diameter
|
external diameter |
Minimum length |
Boring diameter |
Bearing surface width |
||
|
standard |
Short coupling |
Long collar |
||||
|
in |
mm |
W mm |
NS mm |
NL mm |
Q mm |
b mm |
|
4-1/2 |
114.3 |
127.00 |
158.75 |
177.80 |
116.68 |
3.97 |
|
5 |
127.00 |
141.30 |
165.1 |
196.85 |
129.38 |
4.76 |
|
5-1/2 |
139.70 |
153.67 |
171.45 |
203.20 |
142.08 |
3.18 |
|
6-5/8 |
168.28 |
187.71 |
184.15 |
222.25 |
170.66 |
6.35 |
|
7 |
177.80 |
194.46 |
184.15 |
228.60 |
180.18 |
4.76 |
|
7-5/8 |
193.70 |
215.9 |
190.5 |
234.95 |
197.64 |
5.56 |
|
8-5/8 |
219.08 |
244.48 |
196.85 |
254.00 |
223.04 |
6.35 |
|
9-5/8 |
244.48 |
269.88 |
196.85 |
266.70 |
248.44 |
6.35 |
|
10-3/4 |
273.05 |
298.45 |
203.2 |
- |
277.02 |
6.35 |
|
11-3/4 |
298.45 |
323.85 |
203.2 |
- |
302.42 |
6.35 |
|
13-3/8 |
339.72 |
365.12 |
203.2 |
- |
343.69 |
5.56 |
|
16 |
406.40 |
431.80 |
228.6 |
- |
411.96 |
5.56 |
|
18-5/8 |
473.08 |
508.00 |
228.6 |
- |
478.63 |
5.56 |
|
20 |
508.00 |
533.40 |
228.6 |
292.10 |
513.56 |
5.56 |
Size range of tubular threaded sleeve coupling is 41/2 "to 95/8"
It can be manufactured according to the standard parameters provided by customers.
Size of Inclined Trapezoidal Thread Casing Couplings
|
Nominal size
external diameter
|
external diameter |
Minimum length |
Boring diameter |
Bearing surface width |
||
|
Standard coupling |
Special clearance coupling |
|||||
|
in |
mm |
W mm |
WC mm |
NL mm |
Q mm |
b mm |
|
4-1/2 |
114.3 |
127.00 |
123.82 |
225.42 |
117.86 |
3.18 |
|
5 |
127.00 |
141.30 |
136.52 |
231.78 |
130.56 |
3.97 |
|
5-1/2 |
139.70 |
153.67 |
149.22 |
234.95 |
143.26 |
3.97 |
|
6-5/8 |
168.28 |
187.71 |
177.8 |
244.48 |
171.83 |
6.35 |
|
7 |
177.80 |
194.46 |
187.32 |
254.00 |
181.36 |
5.56 |
|
7-5/8 |
193.70 |
215.9 |
206.38 |
263.52 |
197.23 |
7.94 |
|
8-5/8 |
219.08 |
244.48 |
231.78 |
269.88 |
222.63 |
9.52 |
|
9-5/8 |
244.48 |
269.88 |
257.18 |
269.88 |
248.03 |
9.52 |
|
10-3/4 |
273.05 |
298.45 |
285.75 |
269.88 |
276.61 |
9.52 |
|
11-3/4 |
298.45 |
323.85 |
- |
269.88 |
302.01 |
9.52 |
|
13-3/8 |
339.72 |
365.12 |
- |
269.88 |
343.28 |
9.52 |
|
16 |
406.40 |
431.80 |
- |
269.88 |
410.31 |
9.52 |
|
18-5/8 |
473.08 |
508.00 |
- |
269.88 |
476.99 |
9.52 |
|
20 |
508.00 |
533.40 |
- |
269.88 |
511.91 |
9.52 |
It can be manufactured according to the standard parameters provided by customers.
Unthickened tubing coupling dimensions
|
Nominal size
external diameter
|
external diameter |
Minimum length |
Boring diameter |
Bearing surface width |
Maximum bearing surface diameter of special chamfer |
|
|
in |
mm |
W mm |
NL mm |
Q mm |
b mm |
Bf mm |
|
1.05 |
26.67 |
33.35 |
80.96 |
28.27 |
1.59 |
30 |
|
1.315 |
33.4 |
42.16 |
82.55 |
35 |
2.38 |
37.8 |
|
1.66 |
42.16 |
52.17 |
88.9 |
43.76 |
3.18 |
47.17 |
|
1.9 |
48.26 |
55.88 |
95.25 |
49.86 |
1.59 |
52.07 |
|
2-3/8 |
60.32 |
73.02 |
107.95 |
61.93 |
4.76 |
66.68 |
|
2-7/8 |
73.02 |
88.9 |
130.18 |
74.63 |
4.76 |
80.98 |
|
3-1/2 |
88.9 |
107.95 |
142.88 |
90.5 |
4.76 |
98.42 |
|
4 |
101.6 |
120.65 |
146.05 |
103.2 |
4.76 |
111.12 |
|
4-1/2 |
114.3 |
132.08 |
155.58 |
115.9 |
4.76 |
123.19 |
It can be manufactured according to the standard parameters provided by customers.
Externally Thickened Tubing Couplings Dimensions
|
Nominal size
external diameter
|
external diameter |
Minimum length |
Boring diameter |
Bearing surface width |
Maximum bearing surface diameter |
kg |
||||
|
Standard and special chamfered coupling |
Special clearance coupling |
Special chamfered coupling |
Special clearance coupling |
Standard coupling |
Special clearance coupling |
|||||
|
in |
mm |
W mm |
Wc mm |
NL mm |
Q mm |
mm |
mm |
mm |
||
|
1.050 |
26.67 |
42.16 |
- |
82.55 |
35.00 |
2.38 |
37.80 |
- |
0.38 |
- |
|
1.315 |
33.40 |
48.26 |
- |
88.90 |
38.89 |
2.38 |
42.77 |
- |
0.57 |
- |
|
1.660 |
42.16 |
55.88 |
- |
95.25 |
47.63 |
3.18 |
50.95 |
- |
0.68 |
- |
|
1.900 |
48.26 |
63.50 |
- |
98.42 |
54.76 |
3.18 |
58.34 |
- |
0.84 |
- |
|
2-3/8 |
60.32 |
77.8 |
73.91 |
123.82 |
67.46 |
3.97 |
71.83 |
69.90 |
1.55 |
1.07 |
|
2-7/8 |
73.02 |
93.17 |
87.88 |
133.35 |
80.16 |
5.56 |
85.88 |
83.24 |
2.40 |
1.55 |
|
3-1/2 |
88.90 |
114.3 |
106.17 |
146.05 |
96.85 |
6.35 |
104.78 |
100.71 |
4.10 |
2.38 |
|
4 |
101.60 |
127.00 |
- |
152.40 |
109.55 |
6.35 |
117.48 |
- |
4.82 |
- |
|
4-1/2 |
114.30 |
141.3 |
- |
158.75 |
122.25 |
6.35 |
130.96 |
- |
6.05 |
- |