API 16C High-Pressure Annular Manifold | Swivel Joint Loop & Elbow Manifold

RIGRS High-Pressure Annular Manifold

Annular manifold is suitable for oil field of high voltage discharge pipelines, oil pipelines, well test lines, cementing slurry pipelines, and other working conditions of high-pressure conveying fluid flow. it is composed of elbow, straight pipe assembly, easy to composite, convenient transportation, and storage. Have flexibility, impact resistance, resistance to vibration, and the characteristics of large flow.

Annular manifold mainly has three forms: short radiusanular manifold long radius annular manifold, and live los type circular. manifoldSpecifications: Size:1″–4″, Working pressure:35-140Mpa(5000psi-20000psi)The active elbow general configuration of 50 type and 10 type elbows.

Annular Manifold Product Advantages

Transporting high-pressure fluids during well testing, cementing, and fracturing demands flawless equipment reliability. For Procurement Officers and Supply Chain Managers (SCMs), our API 16C annular manifolds minimize operational liabilities and total cost of ownership (TCO) through severe-service engineering.

100% Forged AISI 4130 Alloy Steel (Zero Structural Flaws):

Unlike lower-tier components, our manifolds are constructed exclusively from integral forged carbon steel and AISI 4130 chrome-moly alloy steel. Full heat treatment guarantees maximum impact resistance and zero internal micro-cracks under high-pressure impulse cycles.

Full Traceability & Rigid Quality Control:

We eliminate procurement risks. Every annular manifold assembly undergoes a 1.5x working pressure hydrostatic test prior to factory release. Shipped packages include the official API monogram, original pressure test graphs, and a complete Material Test Report (MTR).

Vibration and Impact Absorption:

The long-sweep swivel joint design minimizes fluid turbulence and fluid-flow friction. This configuration provides superior vibration dampening and impact resistance during high-G cementing slurry operations, protecting upstream wellhead connections.

Interchangeable FMC Style Hammer Unions:

End connections utilize industry-standard Hammer Unions (Fig 602, Fig 1002, Fig 1502). This guarantees 100% mechanical compatibility with existing field piping manifolds, simplifying on-site logistics and inventory management.

RIGRS High-Pressure Annular Manifold Typical Applications

Our flexible annular elbow manifolds provide reliable temporary or permanent high-pressure fluid transfer paths across global oilfield sectors:
High-Pressure Flowback & Well Testing Lines: Managing unpredictable well fluids and sandy drilling fluids safely after hydraulic fracturing.
Oilfield Cementing & Acidizing Manifolds: Handling abrasive cementing slurries and highly corrosive acids under high pump pressures.
Rig High-Pressure Discharge Pipelines: Serving as the flexible fluid loop connecting heavy triplex mud pumps to the rig standpipe system.
Coiled Tubing & Workover Fluid Circulation: Providing dynamic fluid routing on mobile well intervention units.

Key points to consider when purchasing High-Pressure Annular Manifold

Sour Service ($H_2S$) Thresholds: For wellbore fluids containing hydrogen sulfide, users must select the designated “H2S” model suffix. These components undergo special hardness control and heat treatment to resist sulfide stress cracking (SSC).
Erosion Velocity Management: High sand concentrations during post-frac flowback induce accelerated wall thinning at the elbow turns. We recommend keeping fluid velocities below 10 m/s when abrasive solids are present.
Seal Compatibility: Standard internal seals utilize nitrile rubber (NBR) with stainless steel anti-extrusion rings. For high-temperature or synthetic oil-base muds (OBM), specify fluoroelastomer (Viton) configurations during chemical screening.

FAQ – RIGRS Swivel Joint Loop

Q1: What precise certifications do you provide with each annular manifold order to satisfy international oil operator audits?

A: Every manifold is delivered with an audit-ready compliance package. This encompasses our API Spec 16C Certificate of Authority, an individual Factory Acceptance Test (FAT) Certificate containing a 10-minute high-pressure chart hold, chemical and physical Material Test Reports (MTRs) tracking the AISI 4130 steel forgings, and NDT (Magnetic Particle Inspection) weld logs.

Q2: Can we purchase individual short-radius swivel joints or straight pipes as replacement spares?

A: Yes. Since our annular manifolds are highly modular, every constituent component—including Style 50 active elbows, short radius assemblies, straight pipe sections, and hammer union seal rings—is available as standalone spare parts. Dimensions are perfectly matched to standard field lines for direct replacement.

Q3: What is the typical factory production and testing lead time for a standard 3″ Fig 1502 105Mpa manifold?

A: Because we maintain a robust warehouse inventory of raw forged pipe segments and union components, our standard assembly, testing, paint coating, and final packaging lead time is 15 to 20 calendar days. For emergency well-intervention orders, contact our fast-track procurement managers directly.

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