Polished Rod Double / Single Layer Stuffing Box For API 11B
Stuffing Box Detail information
The API 11B Oilfield Polished Rod Sealing Box, also known as a stuffing box, is designed specifically for installation at the Pumping Well Head. Its main purpose is to seal off the Polished Rod by utilizing cone packing and a lubricated upper section. This design allows for self-alignment, prevents packing burnout, and effectively seals against fluid pressure leakage.
The stuffing box is available in two configurations: Single Pack and Double Pack. The materials used for the cap, glands, body, and base can be customized according to customer preferences, with options including 1045/4130 casting steel or ductile iron. The bottom of the stuffing box is equipped with API gauged threads, specifically designed to match tubing EUE or LP connections.
These stuffing boxes are suitable for rod sizes ranging from 1 inch to 1.3/4 inches. They are characterized by their simple structure, making installation straightforward and maintenance convenient. Whether utilizing the single packing, double packing, or even triple packing option, these stuffing boxes guarantee effective sealing, ensuring reliable performance and optimum sealing effectiveness.
Features of stuffing box for polished rod:
| Working Pressure | ≤1500psi |
| Bottom Thread | 1.3/4”, 2”, 2.1/2”, 3”, 3.1/2”, 4” |
| Bottom Connection | Box or Pin, API Tubing or Line Pipe thread. |
| Material | AISI1045/4130 casting steel or ductile iron |
| Split Cone Packing (rod sizes) |
1”, 1.1/8”, 1.1/4”, 1.1/2” and 1.3/4”. |
Stuffing Box Detail information
| Type | Stuffing box |
| Machine Type | Petroleum Machinery |
| Certification | API |
| Material | Alloy steel |
| Processing Type | Turning |
| Use | Oil production |
| Working temperature | < 200°C |
| Sealing property | Good |
| Coating | Anti-corrosion |
| Sealing type | Multisage seal |
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