API  manufacturer  China  in Lipetsk Russian Federation  Standard Spray Welding Sucker Rod Coupling with top quality

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

Couplings produced by our factory include sucker rod coupling, sub-coupling, API 5CT tubing and casing coupling. Sucker rod coupling and sub-coupling are designed in accordance with API Spec 11B, the material is high quality alloy steel. Normally, there are 2 wrench flats on the outside diameter. Class T coupling hardness is HRA56-62 after heat treatment, possesing better anti-corrosion property and abrasion-proof property.

Sucker rod coupling is used for connecting the same size of sucker rods. Sub-coupling is used for connecting the two sizes of sucker rods or polished rod to a sucker rod string.

Size (in) 3/4 7/8 1
Coupling O.D (+0.13,-0.25) (mm) 41.3 46.0 55.6
Threaded D.(in) 1 1 /16 1 3 /16 1 3 /8
Lengh of wrench square (mm) 31.8 31.8 38.1
Lengh (+1.57,0.00) (mm) 101.6
Hardness ( HRA ) 56-62

 

We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

API  manufacturer  China  in Lipetsk Russian Federation  Standard Spray Welding Sucker Rod Coupling with top quality

API  manufacturer  China  in Lipetsk Russian Federation  Standard Spray Welding Sucker Rod Coupling with top quality