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EN

Industrial Valve

Product Categories
We Can Provide Valves to Meet All Your Requirements
The valve is an important part of the pressure pipeline system, and its main functions are:

Connecting and cutting the medium;

Prevent media backflow;

Adjust pressure and flow rate;

Separating, mixing or distributing media;

To prevent the medium pressure from exceeding the specified value to ensure the safe operation of pipelines or equipment.

Only by understanding the characteristics and uses of common valves can we select the most suitable valve for the pipeline system in the design.
Application Fields
Oil & Gas Industry
  • 01

    Wellhead Control

    Pipeline Transportation

  • 02

    Pipeline Oil and Gas Transportation

    Compression Station and Pumping Station

    Storage and Distribution

  • 03

    Processing and Refining

    Terminal Storage

Chemical Industry
  • 01

    Chemical Reactor Control

    Process Piping

  • 02

    Storage Tank Safety

    Fluid Transfer

    Cooling Systems

  • 03

    Corrosive Material Handling

    Waste Treatment

    Mixing and Blending

Energy Industry
  • 01

    Power Plant Cooling Systems

    Steam Distribution

  • 02

    Turbine Control

    Boiler Feedwater Systems

    Heat Recovery Systems

  • 03

    Geothermal Plants

    Solar Thermal Systems

    Nuclear Reactor Cooling

Water Treatment and Hydropower
  • 01

    Filtration and Chemical Dosing Systems

    Desalination and Pumping Stations

  • 02

    Wastewater Treatment and Sludge Handling

    Reverse Osmosis and Distribution Networks

  • 03

    Hydropower Turbine and Dam Control

    Water Intake and Penstock Systems

Construction Sector
  • 01

    HVAC Systems (Heating, Ventilation, and Air Conditioning)

    Fire Protection Systems

  • 02

    Water Supply Networks

    Sewage and Drainage Systems

    Irrigation Systems

  • 03

    Gas Distribution

    District Heating

    Pressure Boosting Systems

Pharmaceutical Manufacturing
  • 01

    Sterile Process Piping

    Clean Room Systems

  • 02

    Bioreactor Control

    CIP/SIP Systems (Cleaning-In-Place/Sterilization-In-Place)

    Fluid Filtration

  • 03

    Solvent Recovery

    Containment Systems

    Water Purification

Design Standards
NAFA covers almost all valve design standards on the market. We can provide whatever you need.
  • ANSI/ASME/API
  • JIS
  • GOST
  • EN/DIN
  • ISO
  • GB
  • ANSI/ASME/API

    Valve standards in the United States are mainly developed by the American National Standards Institute (ANSI), the American Society of Mechanical Engineers (ASME) and the American Petroleum Institute (API). The ASME B16.34 standard covers flanged, threaded and welded valves, while the API 600 standard covers steel gate valves. These standards are widely used worldwide, especially in the oil and gas industry.

  • JIS

    Japanese Industrial Standards (JIS) cover various types of valves, such as JIS B2071 specifying butterfly valves and JIS B2083 regulating cast iron gate valves. These standards are widely used in Japan and also in some Asian countries and regions.

  • GOST

    The GOST standard in Russia is formulated by the Russian Federal Bureau of Technical Regulation and Metrology, for example, GOST 12815-80 regulates the general technical conditions for flanged valves, and GOST 33259-2015 specifies steel ball valves. These standards are widely used in Russia and the countries of the former Soviet Union, ensuring the suitability of valves in cold climates.

  • EN/DIN

    European Standards (EN) and German standards (DIN) cover a wide range of valve design specifications. For example, EN 1983 defines steel ball valves and DIN 3202 defines the surface to surface and center to surface dimensions of industrial valves. These standards are widely used in EU countries, ensuring the interchangeability and uniformity of products.

  • ISO

    Standards developed by the International Organization for Standardization (ISO) are widely recognized and used worldwide. For example, the ISO 9001 quality management system standard is also applicable to valve manufacturers, and ISO 5208 specifies the pressure test method for valves. These standards facilitate international trade and technical cooperation and ensure the consistency and high quality of products worldwide.

  • GB

    China's valve standards, issued by the Standardization Administration, cover aspects such as valve design, material selection, manufacturing processes and testing methods. For example, GB/T 12224-2015 specifies stainless steel forged flanges and butt welded ball valves, and GB/T 12237-2007 specifies flange and butt welded steel ball valves. These standards ensure the consistency and reliability of valves used in the country.

What is an Industrial Valve?
Industrial valve is an important accessory for controlling the flow of media on industrial pipelines, which can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media.
Industrial valves can be classified according to different standards
  • The Adjustment Form

    Regulating Type

    Cutting Type

    Adjusting Cutting Type

  • The Valve Body Material

    Metal Type

    Non-metal Type

    Metal Valve Body Lining Type

  • The Driving Mode

    Electric Type

    Pneumatic Type

    Hydraulic Type

    Manual Type

  • The Temperature Range

    Ultra-low Temperature Valve

    Low Temperature Valve

    Normal Temperature Valve

    Medium Temperature Valve

    High Temperature Valve

  • The Pressure Range

    Vacuum Valve

    Low Pressure Valve

    Medium Pressure Valve

    High Pressure Valve

    Super High Pressure Valve

Common industrial valve products are gate valve, globe valve, check valve, safety valve, ball valve, butterfly valve, trap valve and so on.

It is mainly composed of three parts: valve body, opening and closing mechanism and valve cover, and is widely used in the industry. In the downstream application, it is mainly used in petrochemical (oil refining unit, chemical fiber unit, propylene cyanide unit, synthetic ammonia unit), hydropower station, metallurgy, Marine, food and medicine, environmental protection & sewage treatment, gas, pipeline and rural, urban construction and rural, urban heating ten fields. As an important accessory in industrial production activities, its safety and quality should be considered when selecting.

Come and Choose The Right Valve With NAFA
Maximize The Performance of The Valve
Professional Technical Engineers Provide One-on-one Service
  • Determine the working conditions and pipeline location of the valve.

    The first step is to clarify the location and working conditions where the valve needs to be installed, and clarify the role the valve needs to play, such as controlling flow, blocking the medium or preventing backflow.

  • Determine factors such as pipeline size, medium, temperature, pressure, flow, etc.

    The second step is to determine the size of the valve pipeline and the characteristics of the flowing medium. This is the most important part of selecting the valve type and specification to ensure that the valve can perform at its best under specified conditions.

  • Select the valve body material and caliber

    According to the actual working conditions and the temperature, pressure and chemical properties of the medium, select the appropriate valve body material and confirm that the size of the valve and pipeline match.

  • Select the material and process of valve accessories

    After determining the material of the valve body, the accessories in the valve also need to be carefully selected, including the material, manufacturing process, size, design, etc. of the accessories.

  • Determine the connection method with the pipeline

    Choosing the connection method between the valve and the pipeline is also an important part. The appropriate connection method can ensure that the valve is easy to install and the sealing performance on the pipeline.

  • Select the drive mode

    The drive mode is the last step in the selection of valves. The drive modes are roughly divided into four categories: manual, electric, pneumatic, and hydraulic. For valves larger than 4 inches, it is recommended to use other drive modes except manual.

  • Select the packaging and transportation methods

    The packaging should be selected according to the transportation method to protect the valve from damage during transportation. The transportation methods can be divided into air, sea, land, and rail transportation according to customer needs.

  • After multiple strict tests, the finished product is finally delivered

    After production, it is packaged after multiple tests such as pressure test, sealing test, material test, etc. to ensure that each valve meets the requirements.

Choose the Most Suitable Valve
Service
We have been continuously improving the quality of our service to bring the best products and services to every user.
  • Delivery Guarantee Service
    We guarantee that each valve can be delivered to the customer within the specified delivery period. Regardless of the quantity and design difficulty, our valve production cycle does not exceed 40 days
  • Customized Service
    Our valves support OEM/ODM and product diversity to meet all customized needs of users. We can produce various design standards
  • Quality Assurance
    For the valves produced by NAFA, we have dedicated personnel to strictly control each process to ensure that each valve meets the standards and maintain a record of zero leakage of export valves for more than 20 years.
  • After-sales Service
    Our after-sales service is 24 hours a day, providing you with all valve solutions as soon as possible. NAFA valves enjoy a two-year warranty and lifetime free technical support