1.API Anticorrosion sucker rod couplings
2.OEM order is allowed
3.Fast delivery and best price
4.We are manufacturer

Anticorrosion sucker rod couplings Advantages:

(1)  It can replace common couplings.

(2)  It can replace common lifter.

(3)  Its surface finish degree is extremely high, with minimal friction coefficient, small friction force.

(4)  Its external diameter is much smaller than that of the ordinary lifter, which increases the oil area.

(5)  It reduces the up and down resistance of sucker rod, saving the electricity.

(6)  It is anti-corrosion and anti-alkali.

(7)  It protects the sucker rod and tubing, and extends the operation cycle.

 

 

Full coupling

 

Size (in)	OD (mm)	Overall length   (mm)   (+1.57 , -0.00)	Thread D. (in)	Length of wrench (mm)	Hardness (hra)
	(+0.13,-0.25)
1 "	55.6	101.6	1-3/8"	38.1	56-62
3 / 4 ″	41.3		1-1/16"	31.8
7 / 8 ″	46.0		1-3/16"	31.8
5 / 8"	38.1		15/16"	31.8