Introduction to Quick Actuating Closures

Quick Actuating Closures are mechanical devices designed for circular openings on pressure pipelines or pressure vessels. These closures are essential components in the oil and gas industry, particularly for equipment that requires frequent access. They are used in a variety of settings, such as pipeline pigging operations, filter and separator units, pressurization autoclaves, and vulcanizing tanks, as well as quick-opening door-type pressure vessels.

Technical Specifications

• Nominal Diameter (Dn): Up to 1600mm
• Design Pressure (Pn): Up to 40 MPa
• Working Media: Suitable for oil, gas, and water
• Design Temperature Range: -50℃ to 300℃
• Material: Carbon steel
• Pipe Thickness: Ranging from 6mm to 100mm

Design and Construction

Our company’s Quick Actuating Closures are engineered according to ASME VIII Div.1 standards, incorporating advanced design techniques such as ANSYS finite element stress analysis. The main pressure-bearing components are crafted from integral forgings of low-alloy, high-strength carbon steel, ensuring robust performance under various operational conditions.

Types and Operation

The closures come in several typical structural designs:

• Threaded Type: Features a threaded locking mechanism for securing the closure.
• Clamp Type: Uses a clamp or hoop to fasten the closure, allowing for quick access.
• Buckle Type: Incorporates a buckle system for easy and quick locking and unlocking.
• Lock Ring Type: Utilizes a locking ring that secures the closure under pressure.
• Expansion Ring Type: Employs an expansion ring that tightens under pressure to seal the closure.
• Fixed Pressure Ring Type: Features a fixed ring that maintains a constant pressure to ensure sealing.

These designs predominantly utilize manual operations to ensure ease of use and reliability in environments that require regular access.

Corrosion Resistance and Testing

To enhance durability and resistance to harsh environments, our closures are treated with corrosion-resistant overlay welding techniques. They are suitable for various working conditions and can undergo hydrogen sulfide resistance tests to ensure safety and integrity in hydrogen-rich environments.

Compliance and Standards

Our Quick Actuating Closures fully comply with the relevant national and international standards, including GB150 and the industry standard SY/T0556-2018, which outlines technical specifications for quick actuating blind flanges.

By ensuring our Quick Actuating Closures comply with such rigorous standards, we build client confidence and foster trust in the market. Our clients know that they are acquiring a product that is safe, reliable, and ready to perform under the most demanding conditions. This adherence to high standards promotes a culture of excellence within our organization, driving innovation and quality in everything we do.

Applications of Quick Actuating Closures

Quick Actuating Closures are integral components across various industries, particularly where safety, efficiency, and quick access are paramount. Below are applications of these devices:

1. Oil and Gas Gathering and Transmission Pipelines

Quick Actuating Closures facilitate rapid access for maintenance, inspection, and emergency interventions in oil and gas pipelines. These closures ensure airtight sealing and swift operability to maintain the integrity of the pipeline system, which is crucial for transporting hydrocarbons over long distances. They are particularly valuable in remote or underwater pipelines where access and time are critical.

2. Pig Launcher and Receiver Units

In the context of pipeline cleaning and maintenance, Quick Actuating Closures are used in pig launcher and receiver units. Then these units are essential for the routine cleaning, inspection, and maintenance of pipelines. The closures allow for the quick insertion and retrieval of pipeline inspection gauges or ‘pigs,’ minimizing downtime and ensuring the pipeline’s optimal performance and longevity.

3. Various Filtration Systems and Separators

Filtration systems and separators in petrochemical and refining processes often require frequent access for cleaning and replacement of filters or separators. Quick Actuating Closures enable easy and rapid opening and closing of access points, significantly reducing maintenance time and enhancing the overall efficiency of the filtration process.

4. Pressure Autoclaves and Vulcanizing Tanks

In the manufacturing of rubber products and in chemical processing industries, where materials must be treated under high pressures and temperatures, Quick Actuating Closures provide reliable and secure access to pressure autoclaves and vulcanizing tanks. Their robust design ensures that they can withstand the extreme conditions within these vessels while offering quick access for loading and unloading materials.

5. Quick-open Door Pressure Vessels

Quick Actuating Closures are also extensively used in pressure vessels with quick-open doors. These vessels are found in numerous applications, including batch chemical processes, sterilization processes, and emergency pressure relief systems. The quick-acting mechanism of these closures allows operators to rapidly open and close vessel doors for operational tasks such as loading raw materials, cleaning the vessel, or conducting routine inspections and maintenance.

Benefits in Application

The use of Quick Actuating Closures across these applications offers several benefits:

• Safety: Provides secure sealing to withstand high pressure and prevent leaks, protecting both the process and personnel.
• Efficiency: Reduces downtime by enabling quick access for maintenance and inspections, thereby increasing operational availability.
• Durability: Designed to resist harsh conditions and corrosion, prolonging the service life of the equipment.
• Compliance. Also meets stringent industry standards and regulations, ensuring that the installations are up to date with safety and environmental requirements.