SUBSEA VALVE
High-performance underwater valves for offshore oil and gas pipelines. Designed for subsea manifolds and pipelines in marine oil and gas engineering with superior corrosion resistance and reliability.
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Discover the advanced features and specifications of our high-performance subsea valves for underwater applications
Key Features
AIPU Subsea Valves are engineered for extreme underwater conditions in marine oil and gas engineering. Our valves provide reliable flow control for subsea manifolds and pipelines with superior corrosion resistance and operational reliability.
Deep Sea Compatibility
Designed for underwater pipelines and subsea manifolds in marine oil and gas engineering applications.
Corrosion Resistance
Special materials and coatings provide exceptional resistance to saltwater corrosion and marine environments.
Multiple Configurations
Available in door frame type, handwheel type, and quick-opening knife gate valve configurations.
Precise Specifications
Clear weight and dimension markings with detailed specifications for each model variant.
Technical Specifications
Detailed specifications for AIPU Subsea Valve and Tank Bottom Valve series
| Product Type | Model | Configuration Type | Specification Notes |
|---|---|---|---|
| Tank Bottom Valve / Subsea Valve | APGDF6A | Door Frame Type | Each version requires clarification of characteristic points. Weight and dimensions should be marked except for pole length. Remarks should clearly state total weight per meter of pole. |
| APGDF8A | Door Frame Type | ||
| APGDF10A | Door Frame Type | ||
| APGDF12A | Door Frame Type | ||
| APGDF14A | Door Frame Type | ||
| Tank Bottom Valve / Subsea Valve | APGDF6B | Handwheel 89 Tube | Each version requires clarification of characteristic points. Weight and dimensions should be marked except for pole length. Remarks should clearly state total weight per meter of pole. |
| APGDF8B | Handwheel 89 Tube | ||
| APGDF10B | Handwheel 89 Tube | ||
| APGDF12B | Handwheel 89 Tube | ||
| APGDF14B | Handwheel 89 Tube | ||
| Tank Bottom Valve / Subsea Valve | APGDF8C | Handwheel Type (Tongguan) | Each version requires clarification of characteristic points. Weight and dimensions should be marked except for pole length. Remarks should clearly state total weight per meter of pole. |
| APGDF10C | Handwheel Type (Tongguan) | ||
| APGDF12C | Handwheel Type (Tongguan) | ||
| Tank Bottom Valve / Subsea Valve | APGDF8D | Quick Opening Knife Gate Valve | Each version requires clarification of characteristic points. Weight and dimensions should be marked except for pole length. Remarks should clearly state total weight per meter of pole. |
| APGDF10D | Quick Opening Knife Gate Valve | ||
| APGDF12D | Quick Opening Knife Gate Valve |
Model Specifications
Subsea Valve Detailed Overview
AIPU Subsea Valves are critical components designed specifically for underwater pipelines and subsea manifolds in marine oil and gas engineering applications. These valves provide reliable flow control and isolation capabilities in the challenging deep-sea environment, where pressure, temperature, and corrosive conditions demand exceptional engineering and material selection.
Primary Application: Subsea valves are mainly used in underwater pipelines for subsea manifolds and pipelines in marine oil and gas engineering. They serve as essential components for flow control, isolation, and safety systems in offshore oil and gas production, transportation, and processing operations.
Design and Engineering Features
Our subsea valves incorporate advanced engineering principles and high-quality materials to ensure reliable performance in demanding underwater environments:
- Corrosion Resistance: Constructed from specialized materials and coatings that provide exceptional resistance to saltwater corrosion, hydrogen sulfide (H2S) exposure, and other corrosive elements found in marine environments.
- Pressure Rating: Engineered to withstand high external pressures experienced at significant ocean depths while maintaining internal pressure containment capabilities for various flow media.
- Temperature Compatibility: Designed to operate reliably across a wide temperature range, from cold deep-sea conditions to elevated temperatures associated with oil and gas production.
- Reliable Sealing: Advanced sealing technologies ensure leak-free operation even under extreme pressure differentials and after extended service periods.
- Operational Reliability: Robust mechanical design and precise manufacturing tolerances ensure consistent operation and long service life with minimal maintenance requirements.
Model Variants and Configurations
AIPU offers a comprehensive range of subsea valve models to meet diverse application requirements:
- Door Frame Type (A Series): Traditional design with robust door frame construction for standard subsea pipeline applications. Available in sizes from 6" to 14" diameters.
- Handwheel 89 Tube (B Series): Features an 89mm tube handwheel operation mechanism for enhanced manual control in subsea manifolds and riser applications.
- Handwheel Tongguan (C Series): Specialized handwheel configuration designed for tank bottom applications and specific subsea installations requiring precise flow control.
- Quick Opening Knife Gate (D Series): Rapid opening/closing knife gate mechanism for emergency shutdown applications and situations requiring fast flow control response.
Technical Specifications and Documentation
Each AIPU subsea valve model includes comprehensive technical documentation:
- Detailed Specifications: Clear technical specifications for each model variant including pressure ratings, temperature ranges, material specifications, and dimensional data.
- Weight and Dimension Markings: All valves feature clear weight and dimension markings (except for pole length) to facilitate installation planning and handling.
- Installation Guidelines: Comprehensive installation instructions including torque specifications, alignment procedures, and testing requirements.
- Maintenance Documentation: Detailed maintenance procedures, recommended spare parts, and service interval guidelines to ensure optimal long-term performance.
- Certification Documentation: Complete certification packages including material certificates, test reports, and compliance documentation for industry standards.
Applications in Marine Oil and Gas Engineering
AIPU subsea valves are engineered for diverse applications within the offshore oil and gas industry:
- Subsea Production Systems: Flow control and isolation in subsea Christmas trees, manifolds, and production systems.
- Pipeline Transportation: Isolation and flow control valves for subsea export pipelines, infield flowlines, and riser systems.
- Processing Facilities: Valves for subsea separation, boosting, and processing equipment.
- Safety Systems: Emergency shutdown valves (ESDVs) and safety-critical isolation valves for subsea installations.
- Tank and Storage Systems: Tank bottom valves for subsea storage systems and processing vessels.
Our subsea valves represent the culmination of years of engineering expertise in offshore equipment design and manufacturing. By combining advanced materials, precision manufacturing, and rigorous testing protocols, we deliver valves that provide reliable performance in the world's most challenging underwater environments.
Application Scenarios
Versatile applications across various offshore oil and gas operations
Subsea Production Systems
Flow control and isolation in subsea Christmas trees, manifolds, and production systems for offshore oil and gas fields.
Underwater Pipelines
Isolation and flow control valves for subsea export pipelines, infield flowlines, and riser systems connecting offshore platforms.
Subsea Processing
Valves for subsea separation, boosting, and processing equipment in advanced subsea production systems.
Emergency Shutdown Systems
Emergency shutdown valves (ESDVs) and safety-critical isolation valves for subsea installations and pipelines.
Tank Bottom Applications
Tank bottom valves for subsea storage systems, processing vessels, and offshore loading facilities.
Offshore Platforms
Valves for various applications on offshore drilling and production platforms, including seawater systems and utility services.
Why Choose AIPU Subsea Valve
Industry-leading benefits for your offshore oil and gas operations
Superior Corrosion Resistance
Specialized materials and coatings provide exceptional resistance to saltwater corrosion, H2S exposure, and other corrosive marine elements for extended service life.
Comprehensive Model Range
Wide selection of models including door frame type, handwheel configurations, and quick-opening knife gate valves to meet diverse application requirements.
Precise Engineering Specifications
Clear weight and dimension markings with detailed technical specifications for each model variant to ensure proper installation and operation.
Reliable Deep-Sea Performance
Engineered to withstand high external pressures and challenging underwater conditions while maintaining reliable flow control capabilities.
Advanced Sealing Technology
State-of-the-art sealing systems ensure leak-free operation even under extreme pressure differentials and after extended subsea service periods.
Comprehensive Documentation
Complete technical documentation including installation guidelines, maintenance procedures, and certification packages for compliance and operational efficiency.
Customer Testimonials
What our clients say about AIPU Subsea Valves
We've been using AIPU subsea valves in our North Sea operations for three years. The corrosion resistance and reliability have been exceptional, with zero failures even in the most challenging conditions. Their documentation and technical support are also excellent.
The comprehensive model range allowed us to find the perfect valves for our deepwater project in the Gulf of Mexico. The quick-opening knife gate valves performed flawlessly during emergency shutdown tests, and the installation was straightforward with their detailed documentation.
As a valve specialist with 20 years in the industry, I appreciate the engineering quality of AIPU's subsea valves. The material selection, manufacturing precision, and testing protocols meet the highest industry standards. Their valves have become our preferred choice for critical subsea applications.
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