API 16C Choke and Kill Hose Manufacturer

AlienFrac manufactures API 16C choke and kill hose assemblies for drilling rigs, BOP systems, choke manifolds and high-pressure drilling mud service. As a direct oilfield hose manufacturer, Alienfrac supports custom hose size, working pressure, length, end connection, armoring and inspection documents for demanding well-control projects.

Why Work With a API 16C Choke and Kill Hose Manufacturer?

why work with a api 16c choke and kill hose manufacturer

Buying directly from a manufacturer gives you more control over technical selection and delivery.  AlienFrac can review pressure rating, inner diameter, bending requirements, end fittings and protective cover options before production. This reduces mismatch risk and helps you receive a hose assembly that fits the well-control system instead of a generic catalog item.

• Engineering review for hose ID, pressure, length and connection.
• Manufacturing control over rubber compound, reinforcement and assembly process.
• Inspection support including hydrostatic testing, dimensional checks and visual inspection.
• Custom options for armored/unarmored and crimped/built-in hose constructions.
• Export support for drilling contractors, distributors and OEM rig packages.

what is an api 16c choke and kill hose

What Is an API 16C Choke and Kill Hose?

An API 16C choke and kill hose is a flexible high-pressure line used in choke and kill systems for oil and gas drilling. It transfers drilling mud and well-control fluids between equipment such as the BOP, choke manifold, kill manifold, mud pump and standpipe system. Compared with rigid piping, the flexible hose helps absorb movement and vibration while maintaining a pressure-rated flow path.

Specification ItemProfessional Description
Applicable StandardDesigned and manufactured in accordance with API Spec 16C requirements for choke and kill equipment, subject to verification of the applicable product certification and assembly configuration.
Product TypeFlexible choke and kill hose assembly for high-pressure drilling, well-control, and rig manifold service.
Primary ApplicationsUsed for BOP connections, choke manifold lines, kill manifold lines, mud pump and standpipe connections, and high-pressure drilling mud circulation systems.
Working PressureAvailable working pressure ratings commonly include 5,000 psi, 10,000 psi, and 15,000 psi. Final pressure rating shall be confirmed according to the certified product datasheet and project operating requirements.
Size RangeInner diameter and outer diameter are supplied according to project requirements. Final hose size shall be confirmed based on pressure rating, flow capacity, connection type, and installation layout.
Temperature RatingWorking temperature and short-time exposure temperature shall be selected according to the certified hose model and actual drilling or well-control service conditions.
Inner TubeManufactured with an abrasion-resistant and drilling-fluid-resistant rubber compound suitable for high-pressure mud and well-control media. H2S or sour-service options may be available upon request.
Reinforcement LayerReinforced with high-tensile steel wire or steel cable layers to provide pressure resistance, structural stability, and durability under severe drilling conditions.
Outer CoverOil-resistant, weather-resistant, abrasion-resistant, and ozone-resistant outer cover. Armored protection can be provided for harsh rig-site environments and mechanical damage resistance.
End ConnectionsAvailable with flanges, unions, hubs, or customer-specified end connections. Connection standard, size, and pressure class should be confirmed before production.
Construction OptionsAvailable in built-in armored, built-in unarmored, crimped armored, and crimped unarmored configurations to suit different rig layouts and service conditions.
Inspection & TestingEach hose assembly can be inspected and tested, including hydrostatic pressure testing, dimensional inspection, visual inspection, and end-fitting verification.
DocumentationInspection reports, pressure test reports, material traceability records, and other quality documents can be supplied according to customer or project requirements.
Required RFQ InformationTo provide an accurate quotation, please specify hose ID, working pressure, length, end connection type, service medium, temperature range, bend radius or installation layout, quantity, and delivery requirements.

Applications in Drilling and Well Control

Use this hose where a flexible, pressure-rated connection is needed in the well-control circuit. Common applications include:

choke manifold lines

Choke Manifold Lines

API 16C choke and kill hoses connect the BOP stack to the choke manifold for controlled diversion of high-pressure well fluids during drilling, kick control, and pressure testing. They provide flexible routing, vibration resistance, and reliable flow performance under demanding well-control conditions.

Kill manifold lines

For kill manifold service, API 16C choke and kill hoses deliver weighted drilling mud or kill fluid into the wellbore to regain pressure control during kicks or shut-in operations. Their high-pressure construction supports safe pumping, flexible installation, and dependable performance around the rig floor.

kill manifold lines
bop side outlet connections

Bop Side Outlet Connections

API 16C choke and kill hoses are used on BOP side outlet connections to create flexible high-pressure links between the blowout preventer and well-control manifolds. They help absorb movement and vibration while maintaining secure flow paths for choke, kill, and emergency circulation operations.

High-Pressure Drilling Mud Circulation

In high-pressure drilling mud circulation, API 16C choke and kill hoses transfer mud and well-control fluids where rigid piping is difficult to install. They support continuous circulation, pressure management, and temporary flowline layouts for drilling, testing, and intervention operations.

high pressure drilling mud circulation

Certificates

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Quality Control

Confirm hose size, length, pressure rating and end connection against purchase order.
Inspect liner, reinforcement and cover during manufacturing.
Perform hydrostatic pressure testing according to project requirements.
Check fitting assembly, marking, packing and documentation.
Provide traceable inspection records when required by the buyer.

FAQ of API 16c Choke and Kill Hose

What is an API 16C choke and kill hose?

An API 16C choke and kill hose is a flexible high-pressure hose assembly used in choke and kill systems to transfer drilling mud and well-control fluids between equipment such as the BOP, choke manifold, kill manifold and mud pumps.

A direct manufacturer can review pressure rating, hose size, length, end connection, application medium and inspection requirements before production, which helps reduce selection errors and improves project fit.

Send the required inner diameter, working pressure, total length, connection type, media, temperature range, bend radius or installation layout, sour-service requirement, quantity and delivery location.

Sour-service use depends on liner material, compound design and project certification. Confirm H2S resistance and documentation requirements with the manufacturer before ordering.

API 16C is associated with choke and kill equipment and flexible choke/kill lines, while API 7K is commonly associated with rotary drilling and cementing hose applications. The correct hose depends on the equipment and service conditions.

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