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Subsea Valve2

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Subsea Valve1
Oil Gauge Port
Stainless Steel Manhole Cover
WD600
WD6307
参数说明
modelWDSDHDV-100QWDSDHV-100S
Specification4"4"
Maximum flow2500L/min
work pressure0.6MPa
connection methodflange
Demand pressure0.4-0.8MPa
temperature range-20~+70°C
use mediumdiesel, gasoline, kerosene
Manipulationpneumaticmanual
Package Size68×42×54cm68×42×54cm
××net weight26kg26kg
gross weight28kg28kg
Package4pcs/carton4pcs/carton


  • Definition: Subsea Valve refers to valves specifically engineered for underwater applications, capable of enduring the extreme pressures, corrosion, and currents found in deep-sea environments.

  • Classification: Subsea valves primarily include ball valves, gate valves, and check valves, each with unique characteristics and application scenarios based on design standards and functional requirements.

  • Design Standards and Requirements:

    • Design Standards: Subsea valves are typically designed in accordance with international standards such as API 6DSS (Subsea Pipeline Valves) and API 17D (Subsea Wellhead and Tree Equipment). These standards ensure the valves' performance, safety, and reliability.

    • Special Requirements: Compared to conventional valves, subsea valves have stricter requirements in terms of crush strength, wall thickness design, external structure, corrosion-resistant coatings, and galvanic corrosion resistance. These requirements necessitate additional resources and efforts in computational simulations and specialized inspections during design and manufacturing.

  • Operation Modes:

    • Hydraulic Operation: Utilizes a hydraulic transmission system to open and close the valve, suitable for remote control in deep-sea environments.

    • ROV Operation: Leverages Remote Operated Vehicles (ROVs) for valve operation and maintenance, enhancing operational efficiency and safety.

    • Manual Operation: In shallow water areas, divers can directly operate the valves.

  • Application Areas:

    • Offshore Oil and Gas Engineering: Subsea valves play a crucial role in the extraction, transportation, and processing of oil and gas resources, ensuring their safe and efficient utilization.

    • Deep-Sea Submersibles: Subsea valves also find applications in underwater scientific research, rescue operations, and exploration.

  • Brands and Products:

    • Several brands offer subsea valve products, such as Oilgear's Olmsted product group, renowned for its advanced Subsea Functional Valves (SFV). These products are designed based on a legacy of innovation and aerospace-grade technical standards, offering exceptional reliability and durability.

    • French brands like Coyard also provide a range of high-quality subsea valve products, including subsea ball valves, widely used in various underwater engineering fields.