API 버트레스(BUT) 케이싱 나사산 삽입체 – 16ER / 22ER 시리즈
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: 인기 있는 곳에 비축되어 있습니다 16er 나사산 삽입체 (3/8″ I.C.) and heavy-duty Size 22 (1/2″ I.C.) formats.
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Machining Flexibility: 프리미엄 선반용 나사산 삽입체 응용 프로그램, 오른손잡이용 및 왼손잡이용으로 제공됩니다. 좌손 나사 인서트 구성.
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제품 개요
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.
주요 기능 및 장점
- High Tensile Strength: The nearly vertical 3° flank transmits heavy axial loads, making it superior to API Round threads for heavy casing strings.
- 16ER 표준: 우리 16er 나사산 삽입체 (16ER 5 BUT) handle standard casing sizes (4-1/2″ to 13-3/8″), fitting standard ISO tool holders.
- 중량물 처리 능력: For larger casing sizes (16″ to 20″) or enhanced stability, we offer the robust 22ER (Size 22) series.
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Optimized Grade: 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. | 테이퍼 | 외부 모델 | 내부 모델 | X | Y | 연결 크기 |
|---|---|---|---|---|---|---|---|---|
| 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. | 테이퍼 | 외부 모델 | 내부 모델 | X | Y | 연결 크기 |
|---|---|---|---|---|---|---|---|---|
| 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).
가공 지침
- 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.
- 공구 홀더: Use standard 레이다운 스레딩 인서트 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.
