Industrial Valves

Industrial valves must be designed and manufactured with precise technical specifications to meet the needs of complex systems and harsh industrial environments. Some of these technical specifications include:

• Pressure Rating: This specification determines the valve’s working pressure tolerance. This pressure is measured in bar or pascal (Pa) and depends on the type of fluid and operating temperature. For example, Class 150 to Class 2500 valves are suitable for systems with high pressure.
• Temperature Range: The temperature of the fluid passing through the valve must be compatible with the material and structure of the valve. Some industrial valves, such as those made of stainless steel, can withstand very high (up to 1000 degrees Celsius) or very low temperatures.
• Connection Type: Valve connections can be flanged, threaded, or welded. The choice of connection type depends on the working pressure, pipe size, and fluid type.
• Size: Valve sizes are usually measured in terms of the nominal diameter and both inches and metric systems.

Materials Used in Industrial Valves

The choice of material for manufacturing industrial valves plays a significant role in their durability and performance in various operating conditions. Some common materials include:

• Stainless Steel: Offers high resistance to corrosion and oxidation, making it suitable for corrosive environments and high temperatures.
• Carbon Steel: Carbon steel valves are used in high-pressure and moderate-temperature systems due to their high strength.
• Cast Iron: Used for low-pressure and mild-temperature applications. It is cost-effective and suitable for water and wastewater systems.
• Bronze and Brass: Valves made of bronze and brass are used in systems with non-corrosive fluids and moderate temperatures, such as municipal water systems.
• High-Performance Polymers: Resistant polymers are used in the chemical industry and systems with corrosive lightweight fluids, offering low weight and high corrosion resistance.

Types of Industrial Valves

Industrial valves can be categorized in various ways:

• Classification of Valves by Size:
  • Inch System: Inch sizes are commonly used in international industries and oil and gas projects. You can obtain high-quality inch-sized valves from Atoorsanat.
  • Metric System: The metric system, measured in millimeters, is more commonly used in local and domestic industries.
• Classification of Valves by Control:
  • Manual Valves: These valves are opened and closed manually by an operator. Full flow control depends on human force and is used for systems that do not require precise control.
  • Automatic Valves: These valves are controlled automatically through pneumatic (compressed air), hydraulic, or electrical mechanisms, allowing for precise flow control and reducing the need for manual labor.
• Classification of Valves Based on Mechanical Movement: This classification is based on the type of mechanical movement of the gate or disc for opening and closing the flow.
• Classification of Valves by Operating Mechanism:
  • Butterfly Valves: The valve disc rotates 90 degrees to control the flow. This type of valve is suitable for medium pressures and high flow rates.
  • Check Valves: Prevent the backflow of fluid and are used to protect downstream equipment.
  • Gate Valves: Completely cut off or open the flow with a sliding gate and are mostly used in high-pressure systems.
  • Globe Valves: Suitable for precise flow control of fluids, especially in steam and gas systems. These valves have high performance at various pressures.
  • Plug Valves: Operate with a conical disc and are mostly used in systems with low flow rates.
  • Ball Valves: Control the flow using a hollow ball and are very popular in the oil and gas industry.
  • Safety Valves: Designed to prevent excessive pressure in systems. These valves open automatically to relieve excess pressure.
  • Breather Valves: Used in storage tanks to equalize pressure due to changes in fluid temperature and volume.

Key Features of Industrial Valves

• High resistance to pressure and temperature: These valves are designed for harsh conditions and can withstand high pressures and very high or low temperatures.
• Long life: Industrial valves are made of resistant materials to resist corrosion and abrasion and have a long life.
• Precise control capability: Many industrial valves can precisely adjust the fluid flow, which is essential for sensitive and complex systems.
• Compatibility with various fluids: These valves can work with various fluids including gas, liquid, steam, and chemicals.

Industrial Valve Standards

Industrial valves must be manufactured in accordance with international standards such as API, ANSI, ASME, DIN, and ISO. These standards ensure that valves perform safely and optimally under various operating conditions. Atoorsanat guarantees the quality and safety of its products by complying with these standards.