API-RWAM, Rod, Stationary Thin Wall Barrel, Mechanical Top Anchor Pump
Working principle: RWAM rod pump is equipped with a seating nipple N14, seating nipple N14 connection on the tubing string, down to the bottom of the well with the tubing string. Plunger assembly connection on the sucker rod string and with the pump overall down to seating nipple N14 position together , pump with fixed inside the seating nipple N14, Plunger assembly with the sucker rod string up and down reciprocating movement to
achieve pumping work.
RWAM advantage: if the pump appeared quality problem, need not put forward the tubing string, only need put the whole pump forward well through the sucker rod string together,operation is simple.
Main parts process and material:
Pump barrel: plain carbon steel plating (A1), low alloy steel nitride (B5).
Plunger: 1045 steel spraying (B1), 1045 steel spraying (B2), 1045 steel chrome plating (A1), 1045 steel double chrome plating (A2).
Valve ball and seat: stainless steel (A1), cobalt chromium (B2), tungsten carbide (C1), nickel and carbon compounds (C2), titanium carbide (C3).
Other accessories: plain carbon steel, low alloy steel, stainless steel, brass and other materials.
Technical parameter list:
| specification |
pump diameter (mm) |
barrel length (m) |
Plunger length (m) |
stroke length (m) |
Extension length (m) |
tubing size EUE |
sucker rod size |
| 20-125RWAM |
Φ31.75 |
2.1-10.4 |
0.3-8.0 |
1.2-9.0 |
/ |
2-3/8" |
CYJ16
CYJ19 |
| 20-150RWAM |
Φ38.10 |
2-7/8" |
| 25-200RWAM |
Φ50.80 |
2-7/8" |
| 30-250RWAM |
Φ63.50 |
3-1/2" |
Audited Supplier 
Audited Supplier 
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