The Christmas tree is an assembly of valves and accessories installed above the tubing head to control oil or gas well fluids and provide access to the tubing string. Its arrangement can be configured for oil production, gas production, water injection, hydraulic fracturing and acidizing service, with pressure grades selected for the well conditions.
| Parameter | KQ65/21 | KQ65/35 | KQ80-65/35 | KQ65/70 | KQ78-65/70 | KQ65/105 | KQ78-65/105 |
|---|---|---|---|---|---|---|---|
| Rated pressure | 3,500 psi | 5,000 psi | 5,000 psi | 10,000 psi | 10,000 psi | 15,000 psi | 15,000 psi |
| Nominal size — main | 2 9/16" | 2 9/16" | 3 1⁄8" | 2 9/16" | 3 1/16" | 2 9/16" | 3 1/16" |
| Nominal size — wing | 2 9/16" | 2 9/16" | 2 9/16" | 2 9/16" | 2 9/16" | 2 9/16" | 2 9/16" |
| Temperature class | LU, PU | LU, PU | LU, PU | LU, PU | LU, PU | LU, PU | LU, PU |
| Available medium | Oil, gas | Oil, gas | Oil, gas | Oil, gas | Oil, gas | Oil, gas | Oil, gas |
| PSL | 1–3 | 1–3 | 1–3 | 1–3 | 1–3 | 1–3 | 1–3 |
| PR | 1–2 | 1–2 | 1–2 | 1–2 | 1–2 | 1–2 | 1–2 |
| Material class | AA–FF | AA–FF | AA–FF | AA–FF | AA–FF | AA–FF | AA–FF |
| Connection type | Clamp, flanged | Clamp, flanged | Clamp, flanged | Flanged | Flanged | Flanged | Flanged |
Applicable to oil production, gas production, water injection, hydraulic fracturing and acidizing operations. For high-flow gas wells, sealing capacity and material selection should be specified for pressure and any H₂S or CO₂ present.
YUXIN combines product engineering, machining, assembly, inspection and export coordination in Dongying, Shandong.
Send the existing model or drawing, connection dimensions, operating pressure and temperature, well conditions, quantity and destination.
Yes. YUXIN can review drawings and samples for material, tolerance, machining, inspection and batch-production feasibility.
Material and treatment options are selected around pressure, load, corrosion, wear, temperature and sour-service requirements.
Inspection planning can include dimensional checks, material documentation, assembly review and product-specific pressure or functional testing.
Yes. Batch supply, export packing and order documentation can be organized for distributors, service companies and project procurement.
Website data is for preliminary selection. Final compatibility is confirmed against the approved drawing, specification and purchase requirements.
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