API 11ax Oil Downhole Mechanical Seating M Rod Pump
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Model NO.: Rod Pump
Trademark: Zhongshi
Transport Package: Iron Case or Plywood Case
Specification: API, ISO
Origin: Henan, China
HS Code: 8431
API 11ax Oil Downhole Mechanical Seating M Rod Pump

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. 
 
5) Working Principle
 
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.
 
6) Structure

The subsurface sucker rod pump is consist of tubing coupling, extension nipple, barrel coupling, barrel, traveling valve, plunger, extractor, stationary valve. 
 
7) Parameter
 
 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

 
 8) 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


Company Information

Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. 
 
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001, etc..  
 
Our  products mainly include: 
 
1. Casing Centralizer                          2.  Float Collar & Float Shoe 
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
 
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

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