Underwater Screen Valve Installation Works
Project Overview
This project involved the underwater installation of a screen valve on an existing pipeline attached to a concrete marine structure. The primary purpose of the installation was to provide protection to the pipeline system, preventing debris ingress while ensuring uninterrupted flow. The works were executed under controlled underwater conditions by certified commercial divers, ensuring precision, durability, and compliance with marine safety standards.
- Scope Type: Underwater Installation
- Application: Pipeline Protection
- Environment: Submerged Marine Conditions
Project Objectives
- Install a protective screen valve on an existing marine pipeline
- Ensure secure fixing and long-term durability in submerged conditions
- Execute precise underwater drilling and alignment
- Maintain high standards of safety, quality, and operational control
Scope of Work
1. Site Preparation & Positioning
- Identification of installation location on existing pipeline
- Positioning and alignment of the screen valve to match pipe configuration
- Preparation for accurate fixing and drilling operations
2. Underwater Drilling & Fixing Preparation
- Drilling into concrete wall using hydraulic underwater drilling equipment
- Creation of anchor points aligned with screen valve mounting holes
- Ensuring precise hole dimensions and positioning for secure installation
3. Screen Valve Installation
- Installation of the screen valve onto the pipeline
- Securing using stainless steel bolts and screws for corrosion resistance
- Tightening and fixing to ensure structural stability and durability
4. Functional & Final Checks
- Verification of alignment and secure attachment
- Inspection to ensure proper functionality of the screen valve
- Final checks to confirm effective protection of the pipeline system
5. Health, Safety & Environmental
- All works carried out by certified divers under strict safety protocols
- Pre-dive safety checks and controlled underwater operations
- Use of appropriate PPE and certified equipment
- Measures implemented to minimize environmental impact
Coating System
Manpower & Equipment deployed for underwater execution:
- Certified Commercial Divers for underwater execution
- Hydraulic underwater drilling system with accessories
- Specialized marine-grade stainless steel fastening materials
- Underwater communication and coordination support
Technical Highlights
- Hydraulic underwater drilling for precise concrete anchor points
- Stainless steel fixings for long-term corrosion resistance
- Full certification compliance for commercial diving operations
- Controlled underwater execution with continuous inspection
Challenges & Solutions
Achieving precise alignment and drilling in submerged and restricted conditions
Use of hydraulic underwater tools and experienced divers ensured accuracy and efficiency
Ensuring long-term durability in a corrosive marine environment
Use of stainless steel fixings and robust installation methods provided reliable performance
Final Outcome
The project was successfully completed with the installation of a secure and fully functional screen valve, enhancing the protection of the marine pipeline system. The execution demonstrated precision, safety, and reliability in underwater construction works.
Project Impact
Improved pipeline protection against debris and blockage
Enhanced system reliability and performance
Delivered a durable and high-quality underwater installation solution