APPLICATION

SUB SEA Application Solutions

Engineered for Safety, Reliability & Performance in Demanding Process Applications

Alis Valves Subsea Valve Solutions & Manufacturer in India engineered for reliable flow isolation and control across subsea production, offshore pipelines, manifolds, injection, processing, and underwater flow control systems. Our range includes ball valves, gate valves, globe valves, check valves, butterfly valves, control valves, pneumatic actuated valves, electric actuated valves, and hydraulic/ROV-operated valve configurations, with solutions selected according to subsea pressure, water depth, temperature, fluid composition, corrosion requirements, and service conditions. Designed for demanding underwater environments, our valve solutions focus on reliable shut-off, pressure containment, corrosion resistance, sealing performance, and dependable operation in critical subsea infrastructure.

Subsea-Compatible Design

High-Pressure Performance

Corrosion Resistant

Automation Ready

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Application Scope & Process Solutions

Application & Process Areas

Engineered valve packages, automated assemblies, and specialized flow control systems designed for critical operating units.

Automated Valve Packages

Factory-assembled valve packages with pneumatic or electric actuators, accessories, and control components for reliable and efficient process automation.

Severe-Service & Control Valves

Engineered control and isolation valves for high-pressure, high-temperature, abrasive, and corrosive process conditions across demanding industrial applications.

Emergency Shutdown (ESD) Systems

Safety-focused emergency shutdown valve assemblies with suitable fail-safe actuation and control interfaces to support rapid process isolation in critical applications.

Why ALIS Valves for SUB SEA?

Engineered for demanding subsea and offshore service conditions
Suitable for subsea production, pipelines, manifolds, and processing systems
Material selection based on pressure, temperature, seawater exposure, fluid composition, and service requirements
Reliable shut-off and flow isolation
Corrosion-resistant material and coating options
Suitable sealing systems for demanding underwater applications
Hydraulic, pneumatic, electric, and ROV-operated configurations available
Designed according to applicable API, ASME, ISO, and project requirements
Configurations can be customized according to water depth and operating conditions

Key Application Features

Subsea Oil & Gas Production
Subsea Wellhead Systems
Subsea Christmas Trees
Subsea Manifolds
Subsea Pipelines
Flowline Isolation
Production Gathering SystemsProduction Gathering Systems
Water Injection Systems
Gas Injection SystemsGas Injection Systems
Subsea Pumping Systems
Offshore Platforms
Underwater Isolation Systems

Built for Demanding Conditions

Pressure Rating

Up to Class 2500 (ASME B16.34)

Temperature Range

(-46°C to +180°C)
(Depending on valve type, material, sealing system, and application)

Size Range

1/2" to 20"
DN15 to DN500

End Connections

Flanged, Butt Weld, Socket Weld, Threaded, Hub, Compact Flange, and project-specific connections

Materials

WCB, LCB, CF8, CF8M, SS304, SS316, Duplex Stainless Steel, Super Duplex Stainless Steel, Alloy Steel, Chrome Moly Alloy Steel, Nickel Alloys

Standards

API 6D, API 17D, API 6A, API 598, ASME B16.34, ISO 13628 Series, ISO 14723, ISO 15848, ANSI, DIN, BS

Got Questions?

Frequently Asked Questions

Common questions about valve design, performance, and automation for this application.

What are subsea valves and where are they used?

Subsea valves are designed for use in underwater systems, including offshore oil and gas production facilities, subsea pipelines and related equipment. Their selection depends on water depth, external hydrostatic pressure, internal process pressure, fluid conditions and the intended application.

Which valves are used in subsea oil and gas applications?

Ball valves, gate valves, check valves and other specialized valve designs may be used in subsea systems. The appropriate design depends on the process fluid, pressure and temperature conditions, required isolation performance, actuation method and project specifications.

How do I select a valve for deepwater subsea applications?

Consider water depth, external hydrostatic pressure, internal operating and design pressure, temperature, fluid composition, materials, sealing performance and actuation requirements. The complete valve assembly must be qualified for the intended subsea environment and project conditions.

Which materials are suitable for subsea valves?

Material selection depends on seawater exposure, process fluid composition, pressure, temperature and corrosion requirements. Evaluate the pressure-containing body, trim, fasteners, seals and other components for corrosion resistance and compatibility with the intended service. Sour-service requirements may also apply in certain applications.

What is the difference between subsea valves and offshore valves?

Subsea valves operate underwater and must address external hydrostatic pressure, seawater exposure and subsea operating requirements. Offshore valves may be installed on platforms, floating facilities or other above-water equipment. The environmental conditions and qualification requirements can therefore differ significantly.

How are subsea valves operated remotely?

Subsea valves may be operated using hydraulic, electro-hydraulic or electric actuation systems, depending on the equipment and project design. Selection considers operating torque, control interfaces, response time, available utilities, position feedback and the requirements of the subsea control system.

How can corrosion and leakage be reduced in subsea valve systems?

Select materials, coatings and sealing arrangements suitable for the specified seawater and process conditions. Appropriate design qualification, installation, inspection and maintenance planning can help manage corrosion and leakage risks. Verify any coating, material or leakage-performance claims against project documentation.

What pressure ratings are required for subsea valves?

The required pressure rating depends on the internal process pressure, external hydrostatic pressure, temperature, water depth and applicable design requirements. Both internal and external pressure conditions must be evaluated where relevant; a pressure class alone does not establish subsea suitability.

How can I request a subsea valve quotation from ALIS Valves?

Share your application details, process conditions, water depth, pressure and temperature requirements, valve size, materials, connection type, actuation arrangement and project specifications with ALIS Valves. Subsea qualification, testing and certification requirements should be clearly identified for technical review and confirmation.

Other Applications We Serve

SUB SEA Application Solutions