Puyang Zhongshi Group Co., Ltd.
| Payment Terms | L/C, D/P, T/T, Western Union, D/A |
| Supply Ability | 1000 SETS/MONTH |
| Delivery Time | 10~15 workdays |
| Packaging Details | Standard exported packing |
| Standard | API 11AX |
| Model | RHA, RHB, RWA, RWB |
| Size | 30-250 |
| Seating location | Top and bottom |
| Another name 1 | Insert pump |
| Another name 2 | Down-hole pump |
| Brand Name | Zhongshi |
| Model Number | Sucker rod pump |
| Certification | API, ISO, QHSE |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/P, T/T, Western Union, D/A | Supply Ability | 1000 SETS/MONTH |
| Delivery Time | 10~15 workdays | Packaging Details | Standard exported packing |
| Standard | API 11AX | Model | RHA, RHB, RWA, RWB |
| Size | 30-250 | Seating location | Top and bottom |
| Another name 1 | Insert pump | Another name 2 | Down-hole pump |
| Brand Name | Zhongshi | Model Number | Sucker rod pump |
| Certification | API, ISO, QHSE | Place of Origin | China |
| High Light | 250 rod pump oil and gas ，30 rod pump oil and gas ，250 socker rod | ||
30-250 Big Size Down-Hole Insert Sucker Rod Pump
Down-Hole Sucker Rod Pump Description
Insert rod pump has four groups: RHA, RHB, RWA, RWB
There is a wide range of plunger (or pump-bore) sizes standardized by the industry. The API pump-bore sizes that are currently available range from 1 1/16 to 3 3/4 in. in diameter. This 1 1/16-in. size has been added back in the latest edition of the standard. Additionally, a new barrel type has been accepted in the latest API Spec. 11AX. This is the "X-type" barrel. It has a thin-walled barrel configuration for threads on either end of the heavy-walled barrel and is available for metal plungers only. This type of pump does not require the extension couplings normally needed for heavy-walled barrel pumps. Thus, this pump reduces the burst or collapse concerns of the thin-walled extension couplings and allows deeper producing depths to be attained.
A Sucker Rod Pump works in the following way:
Technical parameter list:
| Specification | Pump diameter (in) | Barrel length (ft) | Plunger length (ft) | Stroke length (ft) | Extension length (ft) | Tubing size EUE(in) |
| 30-250RWAM | Ø63.5 | 2.1-10 | 0.3-8.0 | 1.2-9.0 | / | 3-1/2” |
| 30-250RWBM | ||||||
| 30-250RWAC | Ø63.5 | 3-1/2" | ||||
| 30-250RWBC |
Pump components
There are seven major components for downhole rod pumps: standing and traveling valves, plunger, barrel, seating assembly, pull tube or valve rod (for insert pump), and the fittings that hold the assembled pump together.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
5 million-10 million
Employee Number:
570~600
Ecer Certification：
Verified Supplier
Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o... Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o...
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