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Threaded Connections
BEN-FJ-PR™
Integral, Flush Joint, Premium, Injection String, Production Tubing, Special Clearance, Coatable
The BEN‑FJ‑PR is a true flush connection featuring a metal‑to‑metal seal specifically designed for space‑limited applications requiring internal plastic coating compatibility. It includes a precision‑machined groove for protective rings to ensure uniform coating coverage and corrosion resistance.
Performance & Sizes
| Size range | 2.375″ – 5.500″ (same range as standard FJ) |
| Tension efficiency | 62 %–65 % |
| Compression efficiency | 52 %–55 % |
Testing Performed
- API RP 5C5 / ISO 13679 CAL II Modified
- Frac Cycle
- Sealibility
- Limit Load
- Finite Element Analysis
- Field Proven
Key Features
- Internal metal‑to‑metal seal optimized and proven 100 % gas tight.
- True flush outside diameter provides maximum clearance for tight tolerances.
- External shoulders provide high-torque with a positive stop for consistent compression of protective rings.
- Flush inside diameter creates consistent coating thickness and minimizes turbulence.
- Optimized protective ring and groove design provides corrosion resistance without sacrificing tension or internal pressure performance.