Inserti filettati per rivestimenti API Buttress (BUT) – Serie 16ER / 22ER
Ideal for: Oil & Gas Casing, Deep Well Drilling, High Axial Load Joints.
- Product Standard: API Buttress (BUT) Casing laydown threading inserts (API Spec 5B).
- High Performance Profile: Features the asymmetric 3° load flank / 10° stab flank designed to support massive casing string weights.
- Pitch Standard: Dedicated to the standard 5 TPI casing pitch used across varying pipe diameters.
- Taper Options: Precision ground for both 0.75 IPF (3/4″ per foot) and 1.0 IPF (1″ per foot) taper requirements.
- Size Versatility: Disponibile nel popolare Inserti filettati 16er (3/8″ I.C.) and heavy-duty Size 22 (1/2″ I.C.) formats.
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Machining Flexibility: Premium inserti filettati per tornio applicazioni, disponibili in versione destra e inserto filettato sinistro configurazioni.
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Panoramica del prodotto
Ensure the structural integrity of your oil country tubular goods (OCTG) with our API Buttress (BUT) laydown threading inserts. Designed to meet API Specification 5B, the Buttress thread form utilizes a flat 3° load flank and a 10° stab flank to provide exceptional tensile strength and leak resistance for casing pipes in deep wells.
These carbide threading inserts are engineered to cut the specific 5 TPI pitch on tapered pipes. We offer solutions for both the standard taper (0.75 inches per foot) and the steep taper (1.0 inches per foot) used on larger diameter casings, ensuring precise engagement and seal integrity.
Caratteristiche e vantaggi principali
- High Tensile Strength: The nearly vertical 3° flank transmits heavy axial loads, making it superior to API Round threads for heavy casing strings.
- Lo standard 16ER: Il nostro Inserti filettati 16er (16ER 5 BUT) handle standard casing sizes (4-1/2″ to 13-3/8″), fitting standard ISO tool holders.
- Capacità per impieghi gravosi: For larger casing sizes (16″ to 20″) or enhanced stability, we offer the robust 22ER (Size 22) series.
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Grado ottimizzato: Tough carbide substrates designed to withstand the heat and abrasion of machining high-grade casing steels (J55, N80, P110).
API Buttress (BUT) Casing Thread Inserts Technical Specifications
| TPI | L | I.C. | Conicità | Modello esterno | Modello interno | X | Y | Dimensione del collegamento |
|---|---|---|---|---|---|---|---|---|
| 5 | 22 | 5/8″ | 0.75 | 22ER5BUT0.75 | 22IR5BUT0.75 | 2.2 | 2.4 | 4 1/2″ ~ 13 3/8″ |
| 5 | 22 | 5/8″ | 1 | 22ER5BUT1.0 | 22IR5BUT1.0 | 2.3 | 2.4 | 16″ ~ 20″ |
| TPI | L | I.C. | Conicità | Modello esterno | Modello interno | X | Y | Dimensione del collegamento |
|---|---|---|---|---|---|---|---|---|
| 5 | 16.5 | 3/8″ | 0.75 | 16ER5BUT0.75 | 16IR5BUT0.75 | 1.3 | 1.5 | 4 1/2″ ~ 13 3/8″ |
| 5 | 16.5 | 3/8″ | 1 | 16ER5BUT1.0 | 16IR5BUT1.0 | 1.3 | 1.5 | 16″ ~ 20″ |
*(Note: Catalog Source 554 lists 22ER models. Please verify specific holder seat size requirements).
Linee guida per la lavorazione
- Taper Criticality: API Buttress threads rely on the taper for sealing. Ensure your machine is programmed for 0.75 IPF ($1:16$) or 1.0 IPF ($1:12$) corresponding to the insert and pipe size12.
- Portautensili: Use standard Inserti filettati laydown holders. Size 16 inserts fit standard 3/8″ I.C. holders; Size 22 inserts require 1/2″ I.C. holders.
- Insert Orientation: Ensure the 3° load flank is oriented towards the coupling center. Use a left hand thread insert if machining away from the chuck or for special crossovers.
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