|
Code |
API Code |
|---|---|
| C14R-25（XX） | C14-25 |
| C14R-30（XX） | C14-30 |
| C14R-40（XX） | — |
Note:
- XX is the material identification code;
- The inner surface is lined with hydrogenated nitrile rubber for valve ball guidance, hardness HA85-95, temperature resistance 120℃;
- It can protect the valve ball in high-frequency and sand-containing wells.
