Trusted Cryogenic Ball Valve Manufacturer
NTVAL produces Cryogenic Ball Valves designed for extreme low-temperature conditions. Built for reliable performance and durability, our valves meet strict industry standards, ensuring high-quality solutions for demanding applications. Trust NTVAL for top-tier performance.
Reliable Cryogenic Ball Valve
Cryogenic ball valves are specifically designed for use in the production, transportation, and storage of liquefied gases. These valves are ideal for applications requiring excellent full-flow characteristics and long-lasting performance. Their innovative design allows for efficient media flow through filling stations and portable delivery systems, minimizing pressure loss and preventing delays during filling.
These valves incorporate a free-floating ball design, which allows upstream pressure to push the ball firmly against the downstream seats. As pressure increases, greater seating force and torque are needed to operate the valve.
Available in both Bronze and Stainless Steel, these ball valves feature a spring-loaded gland seal that maintains low torque levels in both ambient and cryogenic conditions.
Cryogenic ball valves are engineered to eliminate leaks, extend operational life, and reduce maintenance costs.
Control de calidad
The PMI test confirms that the materials used in the cryogenic ball valve meet the required specifications. This step verifies accurate composition.
Prueba PMI
The sealing test checks the cryogenic ball valve’s seals for proper functionality. It ensures the valve will prevent leaks in extreme conditions.
Prueba de estanquidad
The low emission test assesses the valve’s ability to minimize harmful gas leaks. This step focuses on maintaining safety and protecting the environment.
Prueba de bajas emisiones
The impact test evaluates the valve’s strength under physical shocks. This confirms the valve’s reliability when exposed to challenging conditions.
Prueba de impacto
The dimension inspection checks the cryogenic ball valve’s size and shape against design requirements. This step ensures proper fitting during installation.
Inspección dimensional
The painting thickness test measures the valve’s protective coating. This helps prevent corrosion and prolongs the lifespan of the cryogenic ball valve.
Prueba de espesor de pintura
The PT inspection looks for small surface cracks or defects. It identifies weak points that could lead to failure when exposed to pressure.
PT
The material inspection verifies that the cryogenic ball valve is made from high-quality materials. This process confirms durability and resistance to extreme temperatures.
Inspección de materiales
Aplicaciones de nuestras válvulas en sectores clave
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Cryogenic ball valves handle extreme temperatures, making them ideal for chemical processes. Their reliability helps manage fluids safely and efficiently.
Procesado químico
Cryogenic ball valves control flammable liquids and gases in petrochemical plants. They perform well under harsh conditions, maintaining safe operations.
Gasolina Química
Cryogenic ball valves are essential for controlling gases in nuclear plants. Their durability supports critical systems in high-pressure environments.
O.P.G & Nuclear
Cryogenic ball valves regulate various fluids in the pulp industry. Their ability to handle extreme temperatures keeps processes running smoothly.
Pulp
Cryogenic ball valves withstand tough conditions in mining. They help control gases and fluids, improving safety and operational efficiency.
Minería
Cryogenic ball valves facilitate smooth flow in water and sewage systems. Their resistance to temperature changes provides reliable operation in various climates.
Agua y alcantarillado
Cryogenic ball valves manage steam effectively in high-temperature systems. Their performance supports efficient energy use and safe operation.
Sistema de vapor
Cryogenic ball valves regulate boiling fluids across industries. Their high resistance to temperature shifts enhances safety and performance.
Sistema de ebullición
Obtenga una válvula más versátil
Learn More About Cryogenic Ball Valve
Cryogenic uni-directional ball valves serve as shut-off valves for low-temperature applications. These valves are commonly employed in the production, transportation, and storage of gases, providing reliable long-term performance.
Especificaciones técnicas
- Diameter: DN15-DN80 nom
- Tipo de conexión: BSP-PL, NPT, Butt Weld, Schedule 10, Socket Weld
- Stem Length: 230 mm
- Body Material: Bronze, Stainless Steel
- Valve Type: Manual, Wafer, Actuated
- Maximum Operating Pressure: 725 psi, 50 bar
- Minimum Operating Temperature: -196 °C
- Maximum Operating Temperature: +65 °C
- Weight: 2-16 kg
- Flow Rate: 9-300 Gal/min
- Packing Material: Virgin PTFE
- Stem Material: Acero inoxidable
Cryogenic Floating Ball Valve (Liquid Nitrogen Ball Valve)
Ball valves are widely utilized in low-temperature and cryogenic applications, including the increasingly preferred energy source, Liquefied Natural Gas (LNG).
Features / Benefits
• Excellent flow characteristics, with low pressure loss
• Designed to prevent incorrect re-assembly after maintenance due to bespoke machining of the stem
• Anti-blowout stem to optimise safety
• Relief hole to prevent trapping of liquefied gases
• Removable centre section to allow inter-changeability in existing installations
• Suitable for retrofitting of electric or pneumatic actuators.
Applications
• Transport
• Storage
• Defense
• Processing
Liquid / Gas Type
• Oxygen (O2)
• Nitrogen (N2)
• Argon (Ar)
• Carbon Dioxide (CO2)
• Krypton (Kr)
• Neon (Ne)
• Hydrogen (H2)
• Nitrous Oxide (N2O)
• Sulphur Hexafluoride (SF6)
• Natural Gas (CH4)
• Ethylene (C2H4)
• Trifluoromethane (CHF3)
Cryogenic Ball Valves: Product Overview
| Cryo ball valve specification | Cryo ball valve standards |
| Tallas | 1″–10” |
| Pressure Class | 150LB–600LB |
| Materiales | CF8, CF3, CF3M, CF8M |
| Design and Manufacturing Standards | API 6D, API 608, ASME B16.34, BS 6364, BS 5351, |
| Face to Face Standards | ASME B16.10, BS 558, BS12982, ISO 5752 |
| Flange Dimension Standards | ASME B 16.5, ASME B16.47, ASME B16.25, ASME B16.11, BS 12627 |
| Pressure Test Standards | API598 API 6D BS12569 |
| Fire Safety Test Standards | API 6FA API 607 |
| Quality/Product Certifications | ISO9001, ISO14001, ISO18001 |
| Fugitive Emissions | ISO 15848-1, API 622 |
| NACE | NACE MR 0175 |
| Valve operator options | Handwhel, Worm Gear, Electric actuator, Pneumatic actuator, Hydraulic Actuator. |
| Shutoff Class | API 598 (Zero Leakage), API 6D |
| Bore | Full Bore, Reduced Bore |
| Process Connection Types | SW, NPT, BW, RF, RTJ |
Cryogenic Control Valve Mechanism
When closed, cryogenic ball valves securely contain low-temperature gases within storage tanks. These valves are designed to open when high-pressure levels arise from extremely low temperatures, allowing gas flow to decrease the pressure. Once the pressure stabilizes, the valves close again to prevent further leakage.
Cryogenic ball valves, also known as low-temperature ball valves, are used for managing and safely storing materials at very low temperatures. They are capable of withstanding temperatures as low as -190°C (-238°F) to absolute zero (-460°F) and can handle the extremely high pressures that occur under such conditions.
Built to endure cold and harsh industrial environments, high-pressure cryogenic valves facilitate the safe handling, storage, and transportation of liquefied industrial gases and Liquefied Natural Gas (LNG). These valves are designed to operate under a wide range of pressures, from Class 150 to 2500, or up to 750 psi.
Cryogenic ball valves are suitable for applications involving temperatures from -40°C (-40°F) down to -196°C (-321°F). The standard bonnets on these valves can be installed at angles ranging from 15° to 45°.
Cryogenic Ball Valve Design
A cryogenic ball valve is composed of three main parts: the actuator, the stem, and the ball. The actuator, which is the outermost component, comes in various designs and is connected to the stem—a rod-like structure that holds the floating ball. When the actuator is turned, it rotates the stem, which in turn repositions the ball.
These valves are equipped with long stems, often referred to as bonnets, allowing for safe operation within pipelines. The extended stem helps keep the valve’s packing warm, reducing the risk of leakage. This design also offers flexibility in installing jacketing equipment to maintain the desired temperature. In tight spaces, the extended arm provides easier access for operation and maintenance.
Cryogenic Ball Valves: Applications
Liquid Gas Tanks
Cryogenic ball valves are used in tightly sealed LNG tanks that store liquid nitrogen and other cryogenic gases. These valves allow for the controlled transfer of liquid gas to other tanks as needed.
Centrales eléctricas
With liquefied natural gases becoming a more popular energy source, power plants use cryogenic ball valves to regulate the flow of these gases through specialized pipelines.
LNG Ships
Ships designed with LNG tanks for transporting cryogenic gases are equipped with cryogenic ball valves. These valves are crucial for loading, offloading, and maintaining the gas’s integrity during transit.
Cooling Systems
In scientific operations that generate high heat, such as Nuclear Magnetic Resonance, cryogenic ball valves are employed to release controlled amounts of LNG for cooling purposes.
Cryogenic Valve
- Stainless Steel ball with Upstream Relief Hole
- Stainless Steel Extended Stem
- Polyfill Seats & TFE Coated Stainless Steel Body
- O2 Cleaned
At the core of the cryogenic design is a durable, one-piece, pressure-safe stem equipped with a Polyfill thrust bearing and a stainless steel split ring. This design provides safety and reduces operational torque. The Polyfill seats maintain a tight shutoff across the entire temperature range.
The stem-ball connection, with orientation control and an upstream hole in the ball, offers reliable overpressure protection. All components are compatible with oxygen, making the design suitable for cryogenic applications.
Especificaciones
- ANSI B.16.34
- Pressure Class Range: 150, 300
- Seating Material: Polyfill
Usage
- Used to cut off or connect media in Class 150 to Class 1500 pipelines.
- Handles various media and operates down to -196°C.
- Available in manual, worm gear, pneumatic, and electric modes.
- Connection options: flange or welding.
Product Range
- Cryogenic ball valves come in two types: floating ball valves and trunnion ball valves.
- For details on product range, face-to-face, and flange dimensions, consult specific data for each valve type.
- Valves operating above -50°C typically do not include a long neck structure.
- Valves operating below -50°C have neck lengths designed according to standards or user requirements.
Structural Features
Cryogenic ball valves are specifically designed for low-temperature applications, particularly in handling hazardous media such as natural gas. Our company has extensive experience in the design, manufacturing, testing, and inspection of cryogenic ball valves, ensuring they meet the demands of these critical service conditions.
| Lowest Working Temperature Of Shell Materials And Main Parameters | |||||
| Lowest working temperature of shell materials | |||||
| Gasting | Forging | ||||
| Materiales | Lowest working | Materiales | Lowest working | ||
| ASTM A352 LCB | -46℃ | ASTM A350 LF2 | -46℃ | ||
| ASTM A352 LCC | -46℃ | -46℃ | |||
| ASTM A352 LC1 | -59℃ | ASTM A350 LF5 | -59℃ | ||
| ASTM A352 LC2 | -73℃ | ASTM A350 LF9 | -73℃ | ||
| ASTM A352 LC3 | -101℃ | ASTM A350 LF3 | -101℃ | ||
| ASTM A351 CF8 | -254℃ | ASTM A182 F304 | -254℃ | ||
| ASTM A351 CF8M | -254℃ | ASTMA182 F316 | -254℃ | ||
| ASTM A351 CF3 | -254℃ | ASTM A182 F304L | -254℃ | ||
| ASTM A351 CF3M | -254℃ | ASTM A182 F316L | -254℃ | ||
| main parameters | |||||
| Design and manufacturing | BS6364-1998、JB/T7749-1995 | ||||
| Face-to-face dimensions | ASME B16.10 | ||||
| Type of connection | Fange | ASME B16.5 | Wafer | ASME B16.5 | |
| Pressure test | API 598 | ||||
| Transmission mode | Manual ,worm drive,pneumatic,electrical | ||||
Material Selection
Common steel becomes brittle at low temperatures, making material selection critical for cryogenic ball valves. The choice of body materials depends on the valve’s lowest operating temperature, as indicated in the following table. Low-temperature materials must undergo impact testing in accordance with standard requirements.
For valves operating below -100°C, the body, bonnet, and stem require cryogenic treatment after rough machining. The ball and seat sealing surfaces should also undergo cryogenic treatment, such as alloy spray welding or overlay welding, before grinding and assembly to ensure material suitability in low-temperature conditions.
Additionally, the packing, gasket, bolts, and nuts must be made from materials appropriate for low-temperature service.
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Más información general
Specs of Cryogenic Ball Valve
Diameter Range
Cryogenic Ball Valves are available in various diameters, typically ranging from DN15 to DN80. This size range allows them to be used in different applications, from small-scale systems to larger industrial setups. I guess choosing the right diameter guarantees proper flow control and system compatibility.
Connection Types
These valves comes with different connection options, including BSP-PL, NPT, Butt Weld Schedule 10, and Socket Weld. Each connection type is suited to specific piping systems. For example, BSP-PL and NPT are common for threaded connections, while Butt Weld and Socket Weld are used for welded joints.
Presiones nominales
These valves are built to handle pressures up to 725 psi (50 bar). This high-pressure capability provides safe and reliable operation in applications involving cryogenic liquids and gases. Their durable design helps prevent leaks or malfunctions under harsh conditions, making them ideal for demanding environments where maintaining high-pressure integrity is crucial.
Material and Construction
The body of Cryogenic Ball Valves is typically made from durable materials like bronze and stainless steel, which resist corrosion and withstand low temperatures. The stem is often made from stainless steel, providing strength and reliability. The packing material, usually Virgin PTFE, provides a tight seal and smooth operation. At NTVAL, we use durable materials in all our valves that will suit any harsh conditions.
Features of Cryogenic Ball Valve
Leak-Proof Sealing
These valves provide excellent leak-proof sealing, which is crucial for preventing the escape of gases or liquids. The sealing components are made from materials that remain effective at low temperatures, maintaining safety and preventing product loss. This feature is vital for industries handling VOC's substances.
Secure Anti-blowout Stem
Cryogenic Ball Valves include an anti-blowout stem design, which prevents the stem from being ejected under high pressure. This safety feature is what manufacturers appreciate, just like NTVAL for maintaining the valve's integrity and safe operation in high-pressure environments for our partners.
Extended Bonnet for Protection
An extended bonnet design helps protect the valve's stem seal from freezing. By keeping the packing and stem farther from the cold media, this feature makes the valve operate smoothly in cryogenic conditions. And the best part is, it's especially useful in preventing freezing issues and maintaining valve functionality.
Benefits of Cryogenic Ball Valve
Longer Service Life
Constructed from durable and corrosion-resistant materials, Cryogenic Ball Valves have a longer service life. This durability reduces the need for frequent replacements and maintenance, leading to cost savings over time. A longer service life also promises consistent performance in critical applications.
Improved Flow Efficiency
The design of Cryogenic Ball Valves often includes a full bore, allowing for improved flow efficiency. This design minimizes pressure drops and maximizes flow rates, making the system more efficient and cost-effective. Improved flow efficiency is particularly important in applications requiring high flow rates and consistent performance.
Easier Operation
Cryogenic Ball Valves are designed for quick and easy operation, often featuring simple mechanisms like quarter-turn actuation. This ease of operation allows for fast and efficient control of flow, which is essential in critical situations. The quick response time can help prevent accidents and provide smooth system performance.
Applications of Cryogenic Ball Valve
LNG Transportation
Cryogenic Ball Valves are crucial in the transportation of Liquefied Natural Gas (LNG). They control the flow of LNG in pipelines and tankers, providing safe handling at extremely low temperatures. This application is vital for maintaining the integrity of the gas during transport and preventing leaks. If you are in this industry and looking for the best Cryogenic Ball Valves, choose NTVAL.
Procesado químico
Cryogenic Ball Valves are utilized in chemical processing industries to manage the flow of cryogenic fluids used in various reactions and processes. They offer precise control and safety, facilitating the proper handling of chemicals and smooth operation of processes without the risk of leaks or contamination.
Generación de energía
In power generation, especially in nuclear and thermoelectric plants, Cryogenic Ball Valves are used in cooling systems. I am impressed how they regulate the flow of cryogenic liquid coolants that help manage the temperature of critical components. This application is important for maintaining the efficiency and safety of power generation systems.
Industria aeroespacial
Cryogenic Ball Valves are widely used in the aerospace industry to control liquid oxygen and liquid hydrogen in rocket propulsion systems. These valves handle the extreme cold of these fuels, helping rockets operate efficiently and safely during launch and flight.
3 Considerations When Buying Cryogenic Ball Valve
01
150 psi - 725 PSI
When purchasing a Cryogenic Ball Valve, check the pressure rating to match your system’s requirements, typically ranging from 150 PSI to 725 PSI. Using a valve with the correct rating helps prevent leaks and system failures under high-pressure conditions. At NTVAL, we can provide Cryogenic Ball Valves with the right pressure rating for your specific needs.
02
BSP-PL
The connection type is another important consideration when purchasing a Cryogenic Ball Valve. BSP-PL (British Standard Pipe Parallel) is a common connection type, especially in European systems. Choosing the correct connection type helps maintain system integrity and prevents issues from mismatched fittings.
03
1-2 Years Warranty
A 1-2 year warranty provides assurance of a Cryogenic Ball Valve’s quality. Wana know why? For example, if a valve fails due to a manufacturing defect within this period, the warranty covers repairs or replacements. Confirming warranty details gives you confidence in the product’s durability and support options.
FAQ's
We provide comprehensive after-sales services, including technical support to address and resolve any issues, guidance on valve operations, and solutions for any encountered problems. If necessary, we can supply replacement parts or a new valve. Customers are eligible for repairs or replacements within the warranty period.
Yes, cryogenic ball valves manage high-pressure levels by securely containing cryogenic or low-temperature gases when closed. They open to allow pressure to decrease with open gas flow and then seal the container again once the pressure drops to avoid further leakage.
We employ a comprehensive quality control system that covers all stages of production, testing, and inspection. This system is designed to guarantee the reliability, durability, and performance of our Cryogenic Ball Valves.
Our Cryogenic Ball Valves are certified to meet industry standards, including ISO9001, ISO14001, and API6D. These certifications offer high-quality manufacturing and performance.
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