Oil Casing Coupling

Oil Casing Coupling

Oil casing coupling Product Introduction Product Specifutio n Production Details Production Flow Chart Product Package Exhibition ecchange FAQ Q1: How long is your delivery time? According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if...
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Product Details

Oil casing coupling
Product Introduction
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API round thread root-to-apex clearance is 0.152mm;

In addition to poor sealing performance, API round threads have low tensile strength.

Under normal conditions, the API round thread has a tensile strength of only 80% of the strength of the pipe body. Under the action of biaxial stress such as external pressure and axial tension, slippage easily occurs when encountering large bending or impact loads.

The basic shapes of all casing round threads and coupling threads are the same, and the basic dimensions and tolerance ranges of tooth height, pitch, taper, and profile angle are exactly the same. And the requirements of the arc shape of the tooth tip and the tooth bottom, the outer chamfer of the pipe end, and the disappearing taper angle are the same.

Product Specifution

Size

coupling OD (mm)

Boring OD.(mm)

pipe OD (mm)

4-1/2”

133.35

116.68

114.3

5”

147.32

129.38

127

5-1/2”

160.02

142.08

139.7

6-5/8”

187.71

170.66

168.28

7”

200.03

180.18

177.8

7-5/8”

215.90

197.64

193.7

8-5/8”

244.48

223.04

219.08

9-5/8”

269.88

248.44

244.48

10-3/4”

298.45

277.02

273.05

11-3/4”

323.85

302.42

298.45

13-3/8”

365.12

343.69

339.72

16”

431.8

411.96

406.4

18-5/8”

508.00

479.63

473.08

20”

533.40

513.56

508


Production Details
QQ图片20181113131440.jpg

 tubing coupling


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NU tubing collar


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 coupling

Production Flow Chart
接箍加工流程图


Product Package
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Wooden pallets


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Wooden pallets


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Wooden case

Exhibition ecchange


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 exhibition


QQ图片20191125160008.jpg

 exhibition


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customers visit

Seperate Line


FAQQ1:  How long is your delivery time?

         According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if the goods are not in stock


Q2: What is your terms of payment ?
       30% T/T in advance ,balance before shippment.


Q3: Do you provide samples ? is it free or extra ?
       Yes, we could offer the sample for free charge but do not pay the cost of freight.


Q3: the terms?
       FOB,CIF,CFR,EXW .



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Hot Tags: oil casing coupling, China, manufacturers, factory, in stock

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