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Coupling manufacturer of Tubing and Casing coupling according to API 5CT AND 5B
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API couplings for oil tubing and casing
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Size and Specifications
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Descriptions and size
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Type of Tread
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O.D*L(mm)
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Weight(kg)
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Tubing Couplings
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2-3/8"
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NUE
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73.02*107.95
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1.28
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2-3/8"
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EUE
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77.80*123.82
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1.55
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2-7/8"
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NUE
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88.90*130.35
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2.34
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2-7/8"
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EUE
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93.17*130.35
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2.4
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3-1/2"
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NUE
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114.30*146.05
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3.17
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3-1/2"
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EUE
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120.65*146.05
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4.1
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4"
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NUE
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120.65*146.05
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4.35
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4"
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EUE
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127.00*152.40
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4.82
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4-1/2"
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NUE
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132.08*155.58
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4.89
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4-1/2"
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EUE
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141.30*158.75
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6.05
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1.Grade:J55,K55,N80-1,N80-Q,L80,C90,P110
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2.We also supply permium thread products by customer's request
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3.Size:tubing coupling from 1.9"to 4-12",casing coupling from 4-1/2" to 13-3/8"
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4.Type:NU,EU(tubing coupling),STC,LC,BTC(casing coupling)
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5.Surface treatment: whole phosphating, or inside phosphating and outside coating
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6.Packing :by carton,wooden case ,wooden pallet or by customer requests
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