01 / 02A follower-type stuffing box that moves with lateral polished-rod displacement. It evens packing load, reduces one-sided wear and friction, and helps extend packing service life while limiting leakage and maintenance work.
| Parameter | Specification |
|---|---|
| Test pressure | 30 MPa |
| Working pressure | 20 MPa |
| Alignment range | 1–16 mm |
| Overall height | 450 mm |
| Medium temperature | −30 to 80 °C |
| Polished rod diameter | 25–38 mm |
| Connection | Clamp, internal thread or external thread |
Before installation, loosen the cap so the packing is not compressed. Pass the polished rod freely through the chamber, secure the wellhead connection, then tighten the sealing cap. The unit is pressure-tested and adjusted before shipment; install it as a complete assembly where possible.
For rod-pumped wells affected by random wellhead offset, lateral polished-rod movement, uneven packing wear or excessive packing friction.
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