Blowout Preventer (BOP)
View system integration details
Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Annular Preventer used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.
A canonical Annular Preventer is characterized by the integration of Packing Unit (Element) and Hydraulic Piston. In industrial production environments, manufacturers listed on CNFX commonly emphasize Reinforced Elastomer (e.g., Nitrile Rubber) construction to support stable, high-cycle operation across diverse manufacturing scenarios.
A critical sealing component within a Blowout Preventer (BOP) stack that forms a seal around drill pipe, casing, or open hole to contain wellbore pressure.
Technical details and manufacturing context for Annular Preventer
Commonly used trade names and technical identifiers for Annular Preventer.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 15,000 psi (103 MPa) working pressure, 22,500 psi (155 MPa) test pressure |
| other spec: | Flow rate: 0-500 GPM (0-1,893 L/min), Slurry concentration: Up to 20% solids by weight, Seal closure time: <30 seconds |
| temperature: | -20°C to 120°C (operating), -40°C to 150°C (storage) |
Manufacturer profiles with relevant production capability in China
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The annular preventer creates a pressure-tight seal around various diameters of drill pipe, casing, or even an open hole to contain wellbore pressure and prevent blowouts during drilling operations.
Annular preventers typically feature reinforced elastomer packing units (often nitrile rubber) for flexible sealing, combined with alloy steel bodies and hydraulic pistons for structural strength and corrosion resistance in harsh drilling environments.
Hydraulic pressure activates pistons that compress the elastomer packing unit inward, forming a seal around the pipe or hole. This system allows for quick closure and pressure control during emergency well control situations.
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