API insert pump/API RWA PUMP/Precision Insert Type API Rod Pump with Thin-wall Barre

The RWA Pump assembly is installed in the well on the end of the sucker rod string and seated in the seating nipple installed in the tubing string at a predetermined depth. When a cup hold-down is used, the pump type ends with "C." When a mechanical hold-down is used, the pump type ends with "M."

The RWA Pump is available in 1.25", 1.50", 2.00", 2.50" and 3.25" bore sizes for 2 3/8", 2 7/8", 3 1/2" and 4 1/2" tubing. The API B-11 thin-wall barrel has a maximum wall thickness of .125" and is internally threaded with an inside diameter tolerance of minus .000" plus .002". The 3.25" bore barrel has a maximum wall thickness of .25". The RWA Pump can be assembled with numerous types of plungers and components to suit your well’s environment.

 Sucker Rod Pumps: 

Specification	Nominal Bore In(mm)	Plunger Length Ft(m)	Ma. O.D. (mm)	Rod In	Tubing In	Stroke Ft(m)
20(25)-125RHAC RHAM	1.25(32)	4-6 (1.2-1.8)	47.5/47.6	0.75	2 3/8(2 7/8)	24.61(7.5)
25-150RHAC RHAM	1.50(38)		59.4/59.5		2 7/8
25-175RHAC RHAM	1.75(44)		59.4/59.5		2 7/8
25-200RWAC RWAM	2.00(51)		59.4/59.5		2 7/8
30-225RHAC RHAM	2.25(57)		72.1/72.2		3 1/2
30-250RWAC RWAM	2.50(63.5)		72.1/72.2		3 1/2

Material and Surface Treatment:

Parts	Material, Surface treatment	Special requirements
Barrel	Carbon Steel, Chrome plate, nickel-phosphorous plate, carbonitriding, carburized	Brass barrel
Plunger	Carbon steel, nickel spray, chrome plate	Double chrome plate
Ball & Seat	Stainless steel, Tungsten carbide, Titanium carbide	Nickel carbide
Cage	Alloy steel	Hard-lined

features of sucker rod pumps:

 1.The inner surface of the pump barrel is processed by carbonization quench and chrome plating technology and the plunger surface is processed with thermal metal spraying technology;

2.The pump meets the requirements of long stroke, high speed and deep production;

3.High pumping efficiency, large displacement, wear and corrosion resistance, long operation and easy repairing.