Many Chinese manufacturers, including AVIC Liyang, Shanghai Electric, Jiangsu Huade, Jiangsu Erma, YUYAO NO.4 INSTRUMENT FACTORY, Luofu Valve Group, XINTAI Valve Group, COVNA Automatic Valve, and Ningbo SENYA, offer pilot-operated high-pressure valves. These valves are essential for control in hydraulic systems, industrial machinery, and power generation. The pilot-operated proportional valve market is growing, projected to reach $4.0 billion by 2033. This expansion fuels demand for Chinese brass solenoid valve suppliers. A reliable pneumatic component brand like SENYA offers high-pressure solenoid valve options. OEM/ODM brass valve factories in China produce these brass solenoid valves, serving various industries. So, which industries rely on high-pressure brass solenoid valves? They are crucial in sectors requiring precise control and durability.
Key Takeaways
- Many Chinese companies make pilot-operated high-pressure valves. These valves are important for controlling fluid in machines.
- Top Chinese manufacturers include AVIC Liyang, Shanghai Electric, and Jiangsu Huade. They offer many types of valves for different uses.
- When choosing a manufacturer, check for good quality control. Look for certifications like ISO and CE.
- Good manufacturers offer custom options and help after you buy. They also provide warranties for their products.
- Chinese manufacturers often have good prices. They can also deliver products quickly.
AVIC Liyang Hydraulic Co., Ltd.
Product Range and Specialization
AVIC Liyang Hydraulic Co., Ltd. stands out as a key player in China’s hydraulic component manufacturing sector. This company specializes in producing a wide array of high-performance hydraulic valves and systems. They focus on delivering robust solutions for demanding industrial applications. Their expertise covers various components essential for precise fluid power control. Customers often choose AVIC Liyang for their commitment to quality and advanced engineering.
Pilot-Operated Relief Valves
AVIC Liyang offers excellent pilot-operated relief valves. These valves are crucial for protecting hydraulic systems from excessive pressure. They work by diverting fluid when system pressure reaches a set limit. This action prevents damage to pumps, cylinders, and other components. AVIC Liyang designs its relief valves for high accuracy and quick response times. They ensure stable system operation even under fluctuating loads.
Tip: Pilot-operated relief valves provide more precise control and higher flow capacity compared to direct-acting relief valves, especially in high-pressure systems.
Pressure Reducing Valves
The company also manufactures reliable pressure reducing valves. These valves maintain a consistent, lower pressure in a specific part of a hydraulic circuit. They take a higher inlet pressure and deliver a steady, reduced outlet pressure. This function is vital for applications requiring different pressure levels within one system. AVIC Liyang’s pressure reducing valves offer excellent stability and adjustability. They help optimize system performance and extend equipment lifespan. Their designs ensure smooth operation and minimal pressure fluctuations.
Shanghai Electric Group Co., Ltd.
Industrial Valve Offerings
Shanghai Electric Group Co., Ltd. stands as a giant in China’s heavy equipment manufacturing sector. They offer a vast range of industrial products, including many types of valves. Their valve division provides solutions for various demanding industries. You can find their valves in power generation, petrochemicals, and metallurgy. They produce a comprehensive selection of industrial valves, ensuring reliable operation in critical applications.
Shanghai Electric manufactures several key valve types:
- Gate valves
- Globe valves
- Butterfly valves
- Ball valves
These valves handle different fluid control needs across their industrial projects.
High-Pressure Directional Control Valves
Shanghai Electric also excels in producing high-pressure directional control valves. These valves are crucial for directing fluid flow in hydraulic systems. They manage the path of hydraulic oil, making sure it goes where it needs to. This control is vital for operating heavy machinery and industrial equipment. Their directional control valves offer precision and durability, even under extreme pressures. They help systems perform smoothly and efficiently.
High-Pressure Flow Control Valves
Furthermore, Shanghai Electric provides high-pressure flow control valves. These components regulate the rate of fluid flow within a system. Maintaining a consistent flow rate is essential for many industrial processes. For example, they ensure steady movement in hydraulic cylinders or precise mixing in chemical plants. Shanghai Electric designs its flow control valves for accuracy and stability. They help optimize system performance and prevent operational issues. Their robust construction means they can handle tough, high-pressure environments.
Jiangsu Huade Hydraulic Co., Ltd.
Expertise in Hydraulic Components
Jiangsu Huade Hydraulic Co., Ltd. has earned a strong reputation for its hydraulic components. They specialize in producing a wide array of high-quality valves for various industrial needs. You can find their products in many demanding applications. Huade offers a diverse range of pilot-operated valves, showcasing their deep technical knowledge. For example, they produce models like the DB10-1-50B/100YU, which features impressive specifications:
| Specification | Detail |
|---|---|
| Model NO. | DB10-1-50B/100YU |
| Drive | Electric |
| Type | Pilot-Operated Type |
| Temperature | -30~80 Degree |
| Pressure | to 35MPa |
| Media | Mineral Oils or Phosphate Ester |
| Certification | CE, ISO9001 |
| Aftersales Service | Lifetime |
| Warranty | 1 Year |
| Condition | New |
| Material | Carbon Steel |
| Size | 20 |
| Flow | 650L/min |
| Transport Package | Carton |
| Trademark | Huade |
| Origin | China |
| HS Code | 841360609 |
| Production Capacity | 50000PCS/Year |
They also offer many variations, including:
- DB10-1-30B/100
- DB10-1-50/315/V
- DB10-1-50B/100
- DB10-1-50B/100/2
- DB10-1-50B/100U
This extensive product line highlights their capability in meeting diverse customer requirements.
Pilot-Operated Sequence Valves
Huade’s pilot-operated sequence valves are crucial for managing fluid flow in complex hydraulic systems. These valves use a sophisticated two-stage system. A small pilot stage, controlled by a proportional solenoid, directs pressurized fluid. This fluid then acts on the larger main spool. This hydraulic amplification allows these valves to handle significantly higher flow rates and pressures, often reaching 315 to 345 bar (4,500 to 5,000 PSI). They are perfect for applications like tunnel boring machine thrust systems and heavy mobile equipment.
Consider these characteristics of their pilot-operated sequence valves:
| Characteristic | Description |
|---|---|
| Design Principle | Sophisticated two-stage system |
| Response Time | Slower but steady (approximately 100 milliseconds) |
| Pressure Range | Up to 10,000+ PSI |
| Cost | Higher investment ($200-$1,500) |
| Best Applications | Large industrial presses, precision manufacturing |
| Advantage | Rock-solid stability under varying conditions |
While these valves offer rock-solid stability, they typically respond slower than direct-acting designs. For example, NG10 (CETOP 5) pilot-operated valves can have step response times up to 165 milliseconds.
High-Pressure Cartridge Valves
Jiangsu Huade also manufactures high-pressure cartridge valves. These valves offer a compact and efficient solution for hydraulic control. Engineers often integrate them directly into manifold blocks. This design saves space and reduces potential leak points. Huade’s cartridge valves handle high pressures reliably. They provide precise control in various hydraulic circuits. Their robust construction ensures long-term performance in demanding industrial environments.
Jiangsu Erma Hydraulic Components Co., Ltd.
High-Performance Valve Solutions
Jiangsu Erma Hydraulic Components Co., Ltd. offers many high-performance valve solutions. They design these valves for various demanding applications. You can find their products in construction equipment and other industrial machinery. Erma provides customizable options to meet specific customer needs. For example, they offer:
- Customizable High Flow Buffered Relief Valves for OEM/ODM solutions.
- Advanced Hydraulic Pressure Control Valves for construction equipment.
- Premium Industrial Flow Control Valves for extreme conditions.
- Reliable Load Control and Balance Valves with an optimal flow rate of 250L/Min.
- High-Precision Load Control Valves with a 40-45nm torque rating.
- Precision Fluid Control Valves for enhanced load management.
These solutions show Erma’s focus on precision and adaptability.
Durable Pilot-Operated Relief Valves
Erma specializes in durable pilot-operated relief valves. These valves are crucial for protecting hydraulic systems. They prevent pressure buildup by diverting excess fluid. This action safeguards pumps and other components from damage. Erma builds its relief valves to withstand tough operating conditions. They ensure long-lasting performance and reliability. Their design allows for precise pressure control, which is vital for system stability.
Quality and Reliability
Jiangsu Erma Hydraulic Components Co., Ltd. prioritizes quality and reliability. They use strict manufacturing processes to ensure every valve meets high standards. Customers trust Erma for consistent product performance. The company commits to delivering dependable hydraulic components. This commitment helps their clients achieve efficient and safe operations. Erma’s focus on quality makes them a trusted supplier in the hydraulic industry.
YUYAO NO.4 INSTRUMENT FACTORY
High-Pressure Solenoid Valve Manufacturing
YUYAO NO.4 INSTRUMENT FACTORY specializes in creating high-quality solenoid valves. They focus on manufacturing solutions for demanding applications. This factory produces various high-pressure solenoid valves. Their product line includes the standard High Pressure Solenoid Valve and the specialized YSE High Pressure Solenoid Valve. These valves play a crucial role in systems requiring precise fluid control under significant pressure. The factory commits to delivering reliable components for industrial use.
Pilot-Operated Solenoid Valves
The factory excels in producing pilot-operated solenoid valves. These valves use a small pilot pressure to control a larger main valve. This design allows them to handle higher flow rates and pressures more efficiently than direct-acting valves. They offer different electrical specifications and pressure ranges to suit various needs. For example, consider these common specifications:
| Specification | Value |
|---|---|
| Working Pressure (Normally Closed) | 0.5-13 bar |
| Working Pressure (Normally Open) | 0.5-8 bar |
| Max Compression Resistance | 17 bar |
| Voltage Options | 220V AC/50HZ (17VA), 110V AC/50HZ (13VA), DC24V (11W), DC12V (14W) |
| Voltage Range | ±10% (other voltages available by order) |
These valves ensure stable and responsive control in complex systems.
Brass Solenoid Valve Options
YUYAO NO.4 INSTRUMENT FACTORY provides excellent brass solenoid valve options. Brass is a popular material for these valves. It offers good corrosion resistance and durability, especially in water and air applications. Their range of brass solenoid valve products meets diverse industrial requirements. Customers can find a suitable brass solenoid valve for many different fluid control tasks. The factory ensures each brass solenoid valve delivers consistent performance and a long service life.
Luofu Valve Group Co., Ltd.
Experience in Safety Relief Valves
Luofu Valve Group Co., Ltd. began its journey in 1984. This gives them over 30 years of experience in the valve industry. They are well-known for their "rich experience in design and manufacture" of many valve types. This includes various safety valves. Luofu Valve Group is a "professional Safety Relief Valves Manufacturer in China." They use advanced manufacturing methods, strong research and development, and strict quality control. They choose premium raw materials and use internationally advanced production equipment. A stringent quality management system ensures rigorous pressure testing for each valve. Their safety relief valve products follow international standards. This ensures they work well globally and meet compliance rules. Multiple international certifications show their trust and acclaim in the global market. These include:
- International Standard Qualification
- Special Equipment Manufacturing License
- CE Certification
- ISO 9001 Quality System
Pilot-Operated Safety Relief Valves
Luofu Valve Group excels in making pilot-operated safety relief valves. These valves are a key part of their extensive product line. They offer a reliable solution for protecting systems from too much pressure. Their long history and focus on quality ensure these valves perform well.
Industrial Applications
Luofu Valve Group’s pilot-operated safety relief valves serve many important industries. These valves are crucial for safety and efficiency in various demanding environments. They protect equipment and prevent dangerous overpressure events.
Here are some industries that rely on their valves:
- Oil and Gas Industry: These valves protect pipelines, storage tanks, and offshore platforms. They prevent overpressure in high-flow, high-pressure systems.
- Chemical Processing: They are essential for reactors and distillation columns in chemical manufacturing. This is especially true in hazardous environments.
- Power Plants: These valves protect boilers and turbines in coal, gas, nuclear, and renewable energy plants.
- Water and Wastewater Treatment: They help maintain pressure in large-scale water treatment systems. This prevents burst pipes.
- Food and Beverage Industry: These valves are used in pasteurization and sterilization processes. They ensure product quality and safety.
- Pharmaceutical Manufacturing: They maintain precise pressure control for product quality in reactors and autoclaves.
- HVAC Systems: They control pressure in high-pressure refrigerant systems in large commercial buildings.
- Pulp and Paper Industry: These valves protect pressurized equipment and steam systems in paper mills.
XINTAI Valve Group Co., LTD
Manufacturer of High-Performance Valves
XINTAI Valve Group Co., LTD is a leading manufacturer of high-performance valves in China. They make many different types of valves for various industrial uses. For example, they produce the API Flange Globe Control Valve. This valve comes in external or internal thread types. You can find it with straight-through, direct-current, or angular flow directions. It can also have packing-sealed or bellows-sealed designs. The body structure often includes straight-through, which is common but has higher fluid resistance. There’s also the DC type, which has low resistance and works well for fluids with solid particles or high viscosity. The right-angle type is usually forged and fits smaller passages with higher pressure.
XINTAI also manufactures the API Flange Stainless Steel Gate Valve. This valve is available in sizes from 1/2″ to 48″ and handles pressure from ANSI 150LB to 2500LB. It offers end connections like BW, RF, and RTJ. You can operate it with a handwheel, gear, or an actuator. These gate valves use materials like Stainless Steel and Duplex Stainless Steel, with metal-to-metal seals. The gate moves perpendicular to the fluid flow and can only be fully opened or closed. They offer these valves in 304, 316, and 321 stainless steel.
Pilot-Operated Safety Valves
XINTAI Valve Group also makes reliable pilot-operated safety valves. These valves are very important for keeping industrial systems safe. They protect equipment by releasing excess pressure when it gets too high. This prevents damage and ensures smooth operation. XINTAI designs these valves to be durable and effective in demanding environments.
Certifications and Standards
XINTAI Valve Group ensures their products meet high international standards. This makes them suitable for global projects. They hold several important certifications. These include the ISO900 quality management system certification and CE certification. They also have ISO14001 certification and OHSAS18001 certification. Furthermore, XINTAI has API certification. Specifically, they hold API certification for carbon steel ball valves and ISO certification for carbon steel ball valves. These certifications show XINTAI’s commitment to quality and reliability in their manufacturing processes.
COVNA Automatic Valve
High-Pressure Solenoid Valve Solutions
COVNA Automatic Valve provides robust high-pressure solenoid valve solutions for various industrial needs. They offer specialized valves designed for demanding environments. For example, the HK08 High Temperature High Pressure Solenoid Valve is a notable product. This normally closed (N/C) electric solenoid valve features a durable stainless steel body. It uses 3/4″ female threaded (NPT) connections. A heat and oil-resistant Viton gasket ensures its reliability. This valve handles high temperatures, working with up to 200°C saturated steam. It also manages up to 250°C in other media like hot oil. COVNA also offers the HKKB Pilot Operated 450 Bar High Pressure Solenoid Valve, showcasing their range of high-performance options. While they focus on specialized solutions, they also provide general-purpose valves, including various brass solenoid valve models.
HKKB Pilot Operated 450 Bar High Pressure Solenoid Valve
The HKKB Pilot Operated 450 Bar High Pressure Solenoid Valve stands out in COVNA’s product line. This valve handles extremely high pressures, reaching up to 450 bar. Its pilot-operated design allows for precise control even under such intense conditions. This makes it suitable for critical applications where system integrity and accurate fluid management are essential. Engineers rely on this valve for its robust construction and consistent performance in challenging industrial settings.
Automation and Control
COVNA integrates advanced features into its pilot-operated valves to enhance automation and control. Their HK07-T pilot-operated solenoid valves come equipped with timer control. This feature enables automated operation for many industrial applications. The timer functionality allows for accurate timing of valve operations. It also provides precise control over fluid flow. Users can program these valves to turn on and off at specific, set times. This capability significantly enhances automation, making processes more efficient and reliable.
Ningbo SENYA Pneumatic Technology Co., Ltd.
Pneumatic Component Manufacturing
Ningbo SENYA Pneumatic Technology Co., Ltd. operates as an integrated organization. They manufacture and export various pneumatic components. The company focuses on producing valves, cylinders, and other pneumatic-related products. They have built a strong brand reputation and gained rich industrial application experience. This expertise helps them deliver reliable solutions to their customers.
Valve and Cylinder Production
SENYA offers a wide range of products. They produce many types of 2/2 ways solenoid valves. These include brass, pneumatic, pulse, and stainless steel options. They also make other specialized solenoid valves. Beyond valves, SENYA manufactures air treatment units and directional valves. Their directional valve selection includes 5/2 ways single directional valves and directional manifolds. For motion control, they produce pneumatic cylinders, such as the ISO15552 Pneumatic Cylinder. Additionally, SENYA provides pneumatic push-in fittings. These fittings come in thread type, flow rate control, and tube-to-tube type options.
Industrial Application Experience
Ningbo SENYA has extensive experience in industrial applications. This background helps them understand customer needs deeply. They apply their knowledge to design and produce high-quality pneumatic components. Their products serve various industries, ensuring efficient and reliable operations. This rich experience allows SENYA to offer solutions that perform well in demanding environments. They consistently meet the specific requirements of different industrial sectors.
Key Considerations for Selecting a Chinese Manufacturer
Choosing the right Chinese manufacturer for pilot-operated high-pressure valves requires careful thought. You need to look beyond just the product itself. Consider several key factors to ensure you get reliable and suitable valves for your needs.
Quality Control and Assurance
Quality control is very important when you select a manufacturer. Reputable Chinese manufacturers use strict processes to ensure their valves perform well. For example, YOY Valve Group uses advanced materials and precision manufacturing. They also conduct rigorous testing. This ensures their pressure relief valves are reliable. All their valves undergo testing to meet international standards like ISO, ASME, and API. This process ensures durability and long-term performance. It also reduces the risk of system downtime. Similarly, Ningbo Flag-up Hydraulic Co., Ltd. uses advanced technology and rigorous testing. Their skilled team works to meet international industry standards for their valves.
Industry Certifications and Standards (ISO, CE)
Always check for industry certifications and standards. These show a manufacturer’s commitment to quality and safety. Certifications like ISO (International Organization for Standardization) prove a company follows recognized quality management systems. CE marking indicates a product meets European safety, health, and environmental protection requirements. These certifications give you confidence in the product’s quality and compliance.
Customization and Technical Support
Many Chinese manufacturers offer excellent customization options and technical support. They can customize valves for specific applications. This includes choosing materials like QT500-7, SUS304, SUS316, SAF2205, or Bronze. They also adjust pressure ranges, such as PN10/16/25/40/CL150/CL300. Manufacturers can design and make valves for high-temperature, high-pressure, or corrosive environments. They also provide ongoing customer support. This includes help with installation, maintenance, and troubleshooting. Some offer 24/7 online technical support and a 2-year product warranty. Over 70 R&D engineers often provide technical support, model selection, and installation guidance. They also perform 100% quality tests before delivery.
After-Sales Service and Warranty
After-sales service and warranty policies are very important when choosing a manufacturer. Most Chinese manufacturers offer a one-year warranty. This warranty typically covers free parts maintenance if you use the valve under normal conditions. This gives buyers peace of mind.
Manufacturers also provide comprehensive after-sales support. This includes technical consultation, helpful manuals, and training. They also offer responsive customer service. Many companies have dedicated technical support teams. These teams help you optimize valve usage and resolve any issues that come up. They emphasize responsive customer service and technical consultancy. You can often get remote video technical guidance throughout the weekdays. This ensures you receive help when you need it. Engineering support for valve selection and system integration is also common. This helps you choose the right valve and set it up correctly in your system.
Pricing and Lead Times
Pricing and lead times are also big factors in your decision. Chinese manufacturers often offer competitive pricing. This can help you manage your budget. However, you should balance cost with quality and service.
Lead times refer to how long it takes for your order to arrive. These times can vary based on the manufacturer, the complexity of the valve, and the order size. Some manufacturers can deliver standard products quickly. Custom orders might take longer. Always discuss lead times upfront with the manufacturer. This helps you plan your projects better. Getting a clear understanding of both pricing and delivery schedules ensures a smooth purchasing process.
Numerous reputable Chinese manufacturers offer a wide range of pilot-operated high-pressure valves. Key players include AVIC Liyang, Shanghai Electric, Jiangsu Huade, Jiangsu Erma, YUYAO NO.4 INSTRUMENT FACTORY, Luofu Valve Group, XINTAI Valve Group, COVNA Automatic Valve, and Ningbo SENYA. Thorough due diligence is crucial for successful procurement. Focus on quality, certifications, and support for products like a brass solenoid valve. Selecting the right manufacturer ensures optimal performance and longevity of hydraulic systems.
FAQ
What are pilot-operated high-pressure valves?
Pilot-operated high-pressure valves use a small pilot pressure to control a larger main valve. This design helps them manage high flow rates and pressures efficiently. They are crucial for precise control in hydraulic systems, industrial machinery, and power generation.
Why should I consider Chinese manufacturers for these valves?
Chinese manufacturers offer a wide range of pilot-operated high-pressure valves. They often provide competitive pricing and diverse product options. Many companies also offer customization and meet international quality standards. This makes them a good choice for various industrial needs.
What key factors should I check when selecting a Chinese manufacturer?
You should look for strong quality control and industry certifications like ISO and CE. Also, consider their customization options and technical support. Good after-sales service and a clear warranty are important. Finally, compare pricing and lead times to make an informed decision.
Are industry certifications important for these valves?
Yes, industry certifications like ISO and CE are very important. They show a manufacturer’s commitment to quality, safety, and environmental standards. These certifications give you confidence that the valves meet recognized international requirements for performance and reliability.
Can Chinese manufacturers customize pilot-operated high-pressure valves?
Many Chinese manufacturers offer excellent customization services. They can tailor valves to specific application needs. This includes choosing different materials, adjusting pressure ranges, and designing for unique operating environments. This flexibility helps meet diverse industrial demands.
