5/8'', 3/4'', 7/8'', 1'', 1 1/8'' Polished Rod Coupling
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US$ 2 / Piece
Min. Order: 1 Piece
Qingdao, China
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5/8'', 3/4'', 7/8'', 1'', 1 1/8''
Alloy
Atmospheric Pressure
Galvanized
Casting
1 Year
Dongying Zhaoxin Industry and Trade Co, Ltd.
Business Type: Manufacturer/Factory & Trading Company
Dongying, Shandong, China
Product Details
Quick Details
5/8'', 3/4'', 7/8'', 1'', 1 1/8'' Polished Rod Coupling
5/8'', 3/4'', 7/8'', 1'', 1 1/8''
Alloy
Atmospheric Pressure
Galvanized
Casting
1 Year
Yes
ZX
Wooden Case
FS/SH(5/8'', 3/4'', 7/8'', 1'', 1 1/8'')
China
Product Details
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.
Sub-couplings
Sub-couplings have different sizes of box threads in each end and are used for connecting two sizes of sucker rods or a polished rod to a sucker rod string. Sub-couplings may be used on sucker rods or polished rods
| pin size in | full size/Slim Hole | outside diameter mm | coupling Length inch | Weight per coupling KG |
| 5/8 | FS | 38.1 | 4 | 0.58 |
| SH | 31.75 | 4 | 0.34 | |
| 3/4 | FS | 41.28 | 4 | 0.63 |
| SH | 38.1 | 4 | 0.47 | |
| 7/8 | FS | 46.04 | 4 | 0.77 |
| SH | 41.28 | 4 | 0.52 | |
| 1 | FS | 55.56 | 4 | 1.23 |
| SH | 50.8 | 4 | 0.89 | |
| 1 1/8 | FS | 60.33 | 4 1/2 | 1.48 |
| SH | 57.15 | 4 1/2 | 1.21 |
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