Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Standing Valve Cage Low Alloy Steel Oilfield Pump Parts
Standing valve cage description:
Pump cage belongs to the pump accessories.
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.
While the pump manufacturers usually produce their pump components with an acceptable quality program (such as ISO 9001[15] or API Spec. Q1[16]), most pump shops are not covered under these rigorous plans.
API Specifications of Rod Pump Plungers
| API Model | Plunger part No. | API No. | Description |
| P21A | P21A-106(XX)-L | P21-106 | Plunger, Pin End, One Piece |
| P21A-125(XX)-L | P21-125 | ||
| P21A-150(XX)-L | P21-150 | ||
| P21A-175(XX)-L | P21-175 | ||
| P21A-200(XX)-L | P21-200 | ||
| P21A-225(XX)-L | P21-225 | ||
| P21A-250(XX)-L | P21-250 | ||
| P21I | P21I-106(XX)-L | P21-106 | Plunger, Pin End, One Piece, inclined plane |
| P21I-125(XX)-L | P21-125 | ||
| P21I-150(XX)-L | P21-150 | ||
| P21I-175(XX)-L | P21-175 | ||
| P21I-200(XX)-L | P21-200 | ||
| P21I-225(XX)-L | P21-225 | ||
| P21I-250(XX)-L | P21-250 | ||
| P21I-275(XX)-L | P21-275 | ||
| P21I-325(XX)-L | — | ||
| P21I-375(XX)-L | P21-375 | ||
| P22 | P22-125(XX)-L | P22-125 | Plunger, Assembled |
| P22-150(XX)-L | P22-150 | ||
| P22-175(XX)-L | P22-175 | ||
| P22-200(XX)-L | P22-200 | ||
| P22-225(XX)-L | P22-225 | ||
| P22-250(XX)-L | P22-250 | ||
| P22-275(XX)-L | P22-275 | ||
| P23 | P23-175(XX)-L | P23-175 | Plunger, Box End |
| P23-225(XX)-L | P23-225 | ||
| P23-275(XX)-L | P23-275 | ||
| P23-375(XX)-L | P23-375 |
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