Hollow Sucker Rod

Hollow sucker rod has hole in the middle and has the characters: chemicals and hot oil can be injected through the inner hole to decrease the viscosity of the oil and the paraffin deposit in the well thus the pump efficiency is increased; The smaller passage and the faster flow velocity can avoid the sand deposit efficiently while use hollow sucker rod in the sand well; Matched with the rodless pump hollow sucker rod can substitute the tubing;
Hollow sucker rod has hole in the middle and has the characters: chemicals and hot oil can be injected through the inner hole to decrease the viscosity of the oil and the paraffin deposit in the well thus the pump efficiency is increased; The smaller passage and the faster flow velocity can avoid the sand deposit efficiently while use hollow sucker rod in the sand well; Matched with the rodless pump hollow sucker rod can substitute the tubing; Hollow sucker rod can be used to drive the PC pumps as it can bear larger torque.

Specifications of Hollow Sucker Rod

Specs	O.D. of Rod	Nominal Diameter of the Thread	Width for Spanner	Length
			mm	mm	ft
KG32	32	1 7/16	41	7000 7500 8000 8500	23 25 26 28
KG36	36	1 9/16	44
KG38	38	1¾	49
KG42	42	1⅞	54
Length of the pony rod: 20, 40, 60, 79, 112 inches