Description
API 6A Flanges & Adapters
Premium Устьевое оборудование Соединение Solutions | 2M – 30M PSI | 1-13/16″ – 30″ | R, RX & BX Кольцо Gaskets
Product Overview
CAMTOP manufactures a comprehensive range of API 6A flanges and adapters designed for critical wellhead and Christmas tree connections. Our flanges conform to API Specification 6A standards, covering both current and legacy flange configurations from 2,000 psi to 30,000 psi working pressure. All products are precision-engineered from high-strength alloy steel and rigorously tested to ensure absolute integrity in the most demanding oilfield environments.
Our flange product line includes Сварной шей Flanges, Blind Flanges, Резьбовой Adapters, and companion flanges with Кольцо Прокладка connections (R, RX, and BX profiles). CAMTOP flanges are available in all standard API sizes from 1-13/16″ to 30″ diameter, with full material traceability and NACE MR0175 compliance for sour gas service.
Product Image
Фигура 1. CAMTOP API 6A Резьбовой Переходник Фланец — Red coated finish with premium thread connection
Шпонка Features
- API Spec 6A Compliant: Manufactured to latest API 6A 21st Edition standards with full dimensional conformance.
- Complete Размер Range: 1-13/16″ through 30″ nominal bore diameter covering all standard wellhead flange sizes.
- Full Номинальное давление Coverage: 2M (2,000 psi) to 30M (30,000 psi) working pressure across all API pressure classes.
- Кольцо Прокладка Compatibility: R, RX, and BX ring groove profiles for all pressure classes with precision CNC-machined grooves.
- Материал Options: 4130/4140 alloy steel, ASTM A105 carbon steel, A350 LF2 low-temp, and NACE-compliant sour service materials.
- Coating Protection: High-durability epoxy coating (red standard) for superior corrosion resistance in field environments.
- Precision Machining: CNC-machined ring grooves and sealing surfaces for leak-free performance under extreme pressure.
- Full Traceability: Complete material certificates, heat treatment records, and NDE reports with every shipment.
- Шпилька Болт Sets: Available complete with ASTM A193 B7/L7 stud bolts and ASTM A194 2H nuts for all flange sizes.
Technical Specifications
API 6A Фланец Specifications (Current Standards)
| Фланец Размер | Номинальное давление | Сварной шей Вес (lbs) | Blind Вес (lbs) | Шпилька Bolts | Кольцо Прокладка |
|---|---|---|---|---|---|
| 1-13/16″ | 2M / 3M / 5M | 9.8 – 16.3 | 9.4 – 15.6 | 4 | R-20 / RX-20 |
| 1-13/16″ | 10M / 15M / 20M / 30M | 20.8 – 110.4 | 24.6 – 114.1 | 8 | BX-151 |
| 2-1/16″ | 2M / 3M / 5M | 12.0 – 29.6 | 11.7 – 27.2 | 8 | R-23~24 / RX-23~24 |
| 2-1/16″ | 10M / 15M / 20M / 30M | 25.3 – 126.8 | 30.4 – 131.9 | 8 | BX-152 |
| 2-9/16″ | 2M / 3M / 5M | 16.9 – 40.1 | 16.9 – 37.3 | 8 | R-26~27 / RX-26~27 |
| 2-9/16″ | 10M / 15M / 20M / 30M | 39.0 – 175.8 | 47.5 – 185.4 | 8 / 12 | BX-153 |
| 3-1/16″ | 2M / 3M / 5M | 21.8 – 52.4 | 22.7 – 49.6 | 8 | R-31 / RX-31 / R-35 |
| 3-1/16″ | 10M / 15M / 20M / 30M | 60.1 – 256.1 | 73.2 – 270.5 | 8 / 12 | BX-154 |
| 4-1/16″ | 2M / 3M / 5M | 44.4 – 78.4 | 45.7 – 76.2 | 8 | R-37 / RX-37 / R-39 |
| 4-1/16″ | 10M / 15M / 20M / 30M | 99.1 – 500.6 | 125.1 – 529.3 | 8 / 12 | BX-155 |
| 5-1/8″ | 2M / 3M / 5M / 10M / 15M | 75.1 – 231.1 | 76.5 – 220.1 | 8 / 12 | R-41 / RX-41 / R-44 / BX-169 |
| 7-1/16″ | 2M / 3M / 5M / 10M / 15M / 20M / 30M | 88.2 – 1,779.4 | 92.0 – 1,888.1 | 12 / 16 | R-45~46 / RX-45~46 / BX-156 |
| 9″ | 2M / 3M / 5M / 10M / 15M / 20M | 130.2 – 1,738.0 | 146.8 – 1,651.8 | 12 / 16 | R-49~50 / RX-49~50 / BX-157 |
| 11″ | 2M / 3M / 5M / 10M / 15M / 20M | 248.2 – 2,235.7 | 240.1 – 2,198.3 | 16 / 20 | R-53~54 / RX-53~54 / BX-158 |
| 13-5/8″ | 2M / 3M / 5M / 10M / 15M / 20M | 302.3 – 5,075.1 | 419.1 – 5,008.3 | 16 / 20 | R-57 / RX-57 / BX-159~160 |
| 16-3/4″ | 2M / 3M / 5M / 10M | 515.0 – 1,464.5 | 649.2 – 1,813.1 | 20 / 24 | R-65~66 / RX-65~66 / BX-162 |
| 18-3/4″ | 5M / 10M / 15M | 1,616.6 – 4,357.6 | 1,871.9 – 4,628.2 | 20 | BX-163~164 |
| 21-1/4″ | 2M / 5M / 10M | 842.5 – 3,877.9 | 1,931.0 – 4,304.1 | 24 | R-73 / BX-165~166 |
| 26-3/4″ | 2M / 3M | 1,435.1 – 2,088.0 | 1,931.0 – 2,566.0 | 20 / 24 | BX-167~168 |
| 30″ | 2M / 3M | 1,691.4 – 2,457.8 | 2,454.2 – 3,239.9 | 32 | BX-303 |
Кольцо Прокладка Specifications
| Прокладка Profile | Applicable Flanges | Вес Range (lbs) |
|---|---|---|
| R (Oval) / RX | 2M, 3M, 5M, 960 psi | 0.37 – 6.71 |
| BX | 10M, 15M, 20M, 30M | 0.29 – 27.57 |
Main Components
| Component | Материал / Specification | Function |
|---|---|---|
| Фланец Корпус | ASTM A105 / A350 LF2 / 4130/4140 Alloy Стальной | Main pressure-containing structure with precision-drilled bolt circle |
| Кольцо Канавка | CNC machined to API 6A tolerances | Seals against ring gasket for pressure containment in R, RX, and BX profiles |
| Raised Face (6BX) | Precision ground finish (Ra 3.2 μm) | Provides metal-to-metal seal contact surface for BX pressure-energized gaskets |
| Шпилька Болт Holes | Drilled per API 6A bolt circle pattern | Accepts ASTM A193 B7/L7 stud bolts with ASTM A194 2H nuts |
| Hub Соединение (Сварной шей) | Под приварку weld preparation per API 6A | Connects to pipe or valve body by welding with full penetration joint |
| Резьбовой Соединение (Adapters) | API LP threads or custom threads | Provides threaded interface for wellhead components and crossover connections |
Applications
- Устьевое оборудование assemblies and Christmas tree installations: Primary flange connections for surface and subsea wellhead systems.
- ПВО stack connections and manifold systems: Высокого давления connections between ПВО rams, annular preventers, and drilling spools.
- Choke and kill line connections: Critical pressure control lines for managed pressure drilling and well control operations.
- Flowline and production line terminations: Фланцевый connections for production flowlines, headers, and gathering systems.
- Высокого давления testing equipment interfaces: Test flanges for hydrostatic pressure testing of wellhead and valve assemblies.
- Cementing and fracturing manifold connections: Высокого давления flanges for stimulation and cementing pump connections.
- Subsea and offshore platform installations: Коррозия-resistant flanges for marine and subsea production environments.
- Sour gas and H₂S service environments: NACE MR0175 compliant flanges for hydrogen sulfide-containing well streams.
Качество Assurance & Испытание
- 100% Материал Inspection: Положительный Материал Identification (PMI) on all pressure-containing components for grade verification.
- Гидростатический Испытание: Корпус hydrostatic test per API 6A at 1.5× rated working pressure with zero-leak acceptance criteria.
- Dimensional Verification: Full dimensional inspection against API 6A engineering drawings using calibrated CMM equipment.
- Hardness Испытание: Hardness verification per NACE MR0175 for sour service materials (max 22 HRC).
- Ultrasonic Испытание (UT): Volumetric inspection on all weld neck hubs and forged bodies per ASME Section V.
- Dye Penetrant Inspection (DPI): Surface NDE on all machined surfaces including ring grooves and raised faces.
- Кольцо Канавка Verification: Surface finish verification (profilometer) and dimensional gauge check on all ring grooves.
- Complete Traceability: Full documentation package with material test reports (MTRs
