1) Standard: API 11AX
2) API and ISO certified
3) Type: Rod Pump
4) Description
The rod pump is connected to sucker rod after being assemblied on the surface then it is pulled down to the well bottom through the tubing.Â
Â
5) Working Principle
Â
In the upper stroke, the plunger is on the bottom of the rod pump. Because the hydraulic pressure from the uper tubing, both up and traveling valves will close, When the plunger go up, the stationary valve open and oil will go through the pump, since the bottom pressure is higher than the uper pressure, then the fluid will be forced to go through the stationary valve and flow into the tubing.
In the down stroke,the traveling valve open and the presure drive the oil go into the plunger from the side holeof the extractor, then go into the tubing.
Â
6) Structure
The subsurface sucker rod pump is consist of tubing coupling, extension nipple, barrel coupling, barrel, traveling valve, plunger, extractor, stationary valve.Â
Â
7) Parameter
Â
 Rod Pump
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 |
Â
 8) Material and Surface Treatment
Â
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 &Â Seat | Stainless steel, Tungsten carbide, Titanium carbide | Nickel carbide |
Cage | Alloy steel | Hard-lined |
Company Information
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC.Â
Â
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001, etc.. Â
Â
Our  products mainly include:Â
Â
1. Casing Centralizer                          2.  Float Collar & Float ShoeÂ
3. Cementing Plug                              4.  Cementing Head
5.  Cement Basket                              6.  Tubing Pump / Rod Pump
7.  Valve Ball & seat                            8. Casing / Tubing Pipe and Coupling
9. Stage Collar                                    10. Pumping Unit
11. Air Blaster                                      12.  Sucker Rod
Â
Our group have more than 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.  Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
Contact Us
PUYANG ZHONGSHI GROUP CO.,LTD
Add: 5th community, Zhongyuan Oilfield, Puyang, China
Tel: 0086-371-87096211 / 15838304721
Fax: 0086-371-87096212
Website: www.zs-oilfieldequip.com;
                 www.chinajixie.com
                 www.casingcentralizer.com
Irene is here waiting for you!!
Middle Speed Flat Film Tape Extruder
We have strong technical force, a perfect CAD network, CAPP networks and a CAD development system, with all kinds of large-scale precise equipment, high-medium machining equipment, testing equipment, advanced production technology, a quality assurance system and steady product quality. The "Three-dragon" brand complete set of equipment for Middle Speed Flat Film Tape Extruder is sold throughout the country and exported to overseas markets, and now it covers more than 30 countries and regions, such as Russia, Vietnam, Indonesia, Malaysia, Bangladesh, Uzbekistan, Ethiopia, Congo, Nigeria, Syria, etc.
Middle Speed Flat Film Tape Extruder,Pp Woven Extruder Tape Produce Machine,Pp Woven Extruder Tape Machine,Woven Extruder Tape Machine
Zhejiang Sanlong Universal Machinery Co.,Ltd. , https://www.sanlongcomachine.com