API 16C Choke & Kill Hose Assemblies | 5000 PSI
In oilfield well-control applications operating up to 5,000 PSI CWP, selecting a certified API 16C Choke & Kill Hose is essential for maintaining pressure containment and structural flexibility. Shanghai PME Industrial Co., Ltd. manufactures heavy-duty API 16C Choke & Kill Hose assemblies engineered to handle extreme pressure fluctuations, abrasive fluids, and severe exterior impacts.
Recently, PME completed and dispatched a custom batch export order of certified flexible lines bound for energy equipment servicing contractors in North America. Built to strictly comply with API Spec 16C standards, these API 16C Choke & Kill Hose assemblies provide superior vibration damping, fatigue resistance, and absolute pressure-tight reliability under demanding field conditions.
2″ FIG 1502 Assembly with SS Armour Shield
Features stainless steel outer armor for maximum abrasion resistance in high-flex environments.
Workshop Quality Inspection & Packing
Full pressure testing and dimensional verification before seaworthy crating and dispatch.
3″ API Flange End (3-1/8″ 5K) with R35 Groove
Heavy-duty flanged design with thermal fire-retardant shield for main choke manifold lines.
API 16C Choke & Kill Hose Technical Specifications
| Technical Parameter | Option A: 3″ Flanged Fire-Retardant Hose | Option B: 2″ FIG 1502 SS Armour Hose |
|---|---|---|
| Standard Specification | API Spec 16C | API Spec 16C |
| Nominal Bore Size | 3 Inch (76 mm) | 2 Inch (51 mm) |
| Assembly Overall Length | 4 Meters | 6 Meters |
| Working Pressure (CWP) | 5,000 PSI (34.5 MPa) | 5,000 PSI (34.5 MPa) |
| End Connections | 3-1/8″ API Flange with R 35 Ring Groove | 2″ FIG 1502 Male x Female Weco Union |
| Exterior Protection | Fire-Retardant Cover (Thermal Shield) | Stainless Steel Outer Armour Shield |
| Primary Application Scene | Static Manifold & Main BOP Lines | Vibrational, Portable & High-Flex Lines |
Comparative Analysis of API 16C Choke & Kill Hose Designs
Operational Context: While both hose configurations operate under the same working pressure rating of 5,000 PSI and adhere strictly to API Spec 16C standards, their structural design, sizing, end connections, and exterior armor dictate distinct operational roles on active drilling rigs:
- Flow Capacity & Bore Sizing: The 3″ ID flanged API 16C Choke & Kill Hose (4 Meter length) provides over 2.2 times the internal cross-sectional area of the 2″ model. This larger internal diameter is optimized for high-volume mud circulations and heavy choke lines where minimizing backpressure and fluid velocity is crucial to preventing internal wall erosion. Conversely, the 2″ ID union hose (6 Meter length) offers lower overall weight and superior line flexibility, making it ideal for routing through tighter rig floor spaces.
- Connection Type & Structural Integrity: The 3-1/8″ API Flange end with R 35 ring groove creates a rigid, bolted metallic seal with zero risk of vibration loosening. It is designed for semi-permanent or primary manifold connections directly linked to the blowout preventer (BOP) stack or main choke manifold. In contrast, the 2″ FIG 1502 Male x Female hammer union end allows rapid makeup and break-out using standard wing nut hammer joints, drastically reducing rig setup times for mobile drilling operations.
- Outer Protection & Environmental Suitability: The 3″ assembly incorporates a specialized fire-retardant outer layer designed to maintain structural hose integrity during high-temperature well control incidents or emergency flare situations. The 2″ assembly is fitted with a Stainless Steel Armour Shield (SS ARMOUR), providing maximum mechanical protection against severe abrasion, external crushing, and heavy impact on harsh North American field sites.
Order Status & Dispatch: All API 16C Choke & Kill Hose units from this production run underwent rigorous 100% factory hydrostatic pressure testing, drift testing, and full dimensional inspection prior to seaworthy wooden crate packaging. These flexible lines have been dispatched directly to energy servicing contractors across North America for immediate field deployment.
Engineering Advantages of PME API 16C Choke & Kill Hose
- Standardized Interface Profiles: Flanged ends feature standard API 6A dimensions and groove profiles (R 35), while union ends are fully interchangeable with WECO® 1502 profiles, ensuring seamless integration into existing rig manifolds.
- High Fluid Velocity & Erosion Resistance: Synthetic inner tubes are engineered specifically for synthetic, oil-based, and water-based drilling muds, handling high fluid velocities without inner tube degradation or blistering.
- Full Fire & Mechanical Armor Options: Offers customizable exterior armor solutions including thermal fire-retardant layers and stainless steel outer armours to match specific environmental risk factors.
- Rigorous Testing & Traceability: Every API 16C Choke & Kill Hose assembly undergoes 100% factory hydrostatic proof testing with full Material Test Reports (MTR) and API 16C compliance certificates supplied with shipment.
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Shanghai PME Industrial supplies API certified high-pressure flexible API 16C Choke & Kill Hose assemblies, flowlines, and manifold components to oilfield and energy operators globally. Contact our engineering team for technical drawings and custom project pricing.
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