Shengli Oilfield Ruite Machinery Manufacturing Co., Ltd.: Shandong, China; Main products: Wellhead equipment, casing head, tubing head, drill pipe, plate gate valve

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API 5CT oil well casing pipe water well casing pipe coupling crossover subs joint premium thread

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1 Ton(Min. Order)

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Product Details

1. API standard.
2. ISO certificate.
3. Register with Sinopec.
4. Technical service.
5. Professional service for export.

API round thread casing coupling dimensions, tolerances and weight

NO	Specification		Minimum length		Bore diameter Qb	Bearing surface width B mm	Weight
NO	OD d mm	OD W mm	Short coupling NL	Long Coupling NL	Bore diameter Qb	Bearing surface width B mm	Short coupling	Long Coupling
1	2	3	4	5	6	7	8	9
4-1/2	114.30	127.00	158.75	177.80	116.68	3.97	3.62	4.15
5	127.00	141.30	165.10	196.85	129.38	4.76	4.66	5.75
5-1/2	139.70	153.67	171.45	203.20	142.08	3.18	5.23	6.42
6-5/8	168.28	187.71	184.15	222.25	170.66	6.35	9.12	11.34
7	177.80	194.46	184.15	228.60	180.18	4.76	8.39	10.83
7-5/8	193.70	215.90	190.50	234.95	197.64	5.56	12.30	15.63
8-5/8	219.08	244.48	196.85	254.00	223.04	6.35	16.23	21.67
9-5/8	24.48	269.88	196.85	266.70	248.44	6.35	18.03	25.45
10-3/4	273.05	298.45	203.20	_	277.02	6.35	20.78	_
11-3/4	298.45	323.85	203.20	_	302.42	6.35	22.64	_
13-3/8	339.72	365.12	203.20	_	343.69	5.56	25.66	_
16	406.40	431.80	228.60	_	411.96	5.56	34.91	__
18-5/8	473.08	508.00	228.60	_	478.63	5.56	54.01	_
20	508.00	228.60	228.60	292.10	513.56	5.56	43.42	57.04
The tolerance of the outer diameter of 1, 2 and 3 W ± 1%, but not more than ± 3.18mm. Group 4 OD W tolerance of ± 1% but not more than ±3.18 , -1.59mm. A coupling specifications and code and the corresponding pipe specification B for all groups, the bore diameter tolerances of Q ++0.790 mm

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Shengli Oilfield Ruite Machinery Manufacturing Co., Ltd.: Contact nameRT Group
Chat Now; AddressNorth Of Nan'er Road, East Of 14th Road, Shengli Industrial Zone

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