API Oil Field Tools Polished & Sucker Rod (String) Coupling
Polished rod couplings are designed for connecting of the polished rod to the top rod of the string. Contrary to rod couplings, polished rod couplings have a female cone that eliminates the coupling twist-off in the course of operation.
Sucker rod coupling is used to connect two sucker rods. The grade is API Grade T.
Spray metal couplings are better in anti-corrosion than common sucker rod couplings.
Slim hole and full size couplings are available.
Polished rod couplings are designed for connecting polished rod to the top rod of the string. Contrary to rod couplings, polished rod couplings have a female cone that eliminates the coupling twist-off in the course of operation.
Parameters of Sucker Rod and Polished Rod Couplings
| polished rod coupling |
|
|
|
| Size(in) |
Coupling O.D W(mm) |
Length L(mm) |
Thread D.(in) |
Vanish Cone |
Hardness(HRA) |
| |
(+0.13,-0.25) |
(+1.57,-0.00) |
|
|
| 5/8" |
38.1 |
101.6 |
15/16" |
9O |
56-62 |
| 3/4" |
41.28 |
|
1-1/16" |
|
|
| 7/8" |
46 |
|
1-3/16" |
|
|
| 1" |
55.6 |
|
1-3/8" |
|
|
| 1-1/8" |
60.33 |
114.3 |
1-9/16" |
|
|
| Parameters |
|
|
|
|
| Type |
grade |
O.D(mm) |
Minimum lengh(mm) |
Hardness |
Weight(kg) |
Standard |
| reference |
| 3/4" |
19-T |
41.05~41.43 |
101.6~103.17 |
56-62HRA |
0.65 |
API 11B |
| 7/8" |
22-T |
45.75~46.13 |
45.75~46.13 |
56-62HRA |
0.8 |
API 11B |
| 1" |
25-T |
55.35~55.73 |
55.35~55.73 |
12-23HRA |
1.15 |
API 11B |
Our team
Zhengzhou Maierda Petroleum Equipment Co., Ltd., located in Central China, is a professional supplier of oilfield equipment and tools.
Our factories has more than 15 years experiences of manufacturing oilfield equipment and tools.
Our sales team has more than 10 years importing exporting experiences in oil & gas industry.
Our products
We are specialized in such as casing centralizers, float collars and float shoes, cementing plugs, cement baskets, cementing heads, stage collars, sucker rods, drill pipes, drill collars and pumping units
our products are well sold in Mideast, North America, Latin America, Central Asia, Southeast Asia, Russia, North Africa, etc.
We are committed to providing high-quality and cost-effective products and services to our customers.
Our services
We guarantee and uphold the highest standards in customer service, client satisfaction, and quality product delivery in the oilfield industry. We are professional in many kinds of casing centralizers, float collars and float shoes, cementing plugs, cement baskets, cementing heads, stage collar, sucker rods, drill pipes, dill collars, etc.
Let's join hands and work together to create a better future!
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