Advantages of Cast Iron Valves

 
Advantages of Cast Iron Valves



1. Material Superiority
 
Cast iron valves are typically made from high-quality gray cast iron or ductile iron, which possess excellent mechanical properties, wear resistance, and corrosion resistance. Cast iron valves have a long service life at normal temperature and pressure, with relatively low demands on fluid media, making them adaptable to various environments and usage scenarios.
 
2. Excellent Sealing Performance
 
Cast iron valves employ precision manufacturing processes, with finely machined sealing surfaces between the valve seat and disc, ensuring tight coordination to effectively prevent fluid leakage. Furthermore, cast iron valves can further enhance sealing performance through methods such as adding sealing fillers, ensuring stable operation of fluid systems.
 
3. Flexible Operation
 
Cast iron valves typically employ rotary or lift-type operating mechanisms, requiring minimal operating torque and providing flexible switching, facilitating maintenance and adjustment. Moreover, cast iron valves exhibit fast opening and closing speeds, enabling quick response to changes in fluid systems, and meeting the demands for rapid cutoff and regulation.
 
4. Versatility
 
Cast iron valves can be designed into different structures and specifications according to various usage requirements, such as globe valves, gate valves, and ball valves. Additionally, cast iron valves can select different materials and sealing structures based on different media, meeting the requirements of various fluid media.
 
5. Safety and Reliability
 
During the design and manufacturing process, cast iron valves strictly adhere to relevant national standards and specifications, ensuring the safety and reliability of products. Valve seats and discs are made of high-strength materials capable of withstanding high pressure and temperature, ensuring the stable operation of fluid systems. Furthermore, cast iron valves possess safety features such as fire resistance and explosion prevention, providing robust protection for industrial production.
 
Conclusion
 
Cast iron valves play a significant role in fluid control systems due to their unique material advantages, excellent sealing performance, flexible operation, broad versatility, and safety and reliability characteristics. With the continuous advancement of technology and industrial development, cast iron valves will continue to be optimized and perfected, providing more efficient, reliable, and intelligent solutions for fluid control.
 

Cast iron valves are critical components in industrial fluid control systems, widely used in various fluid pipelines for functions such as regulation, isolation, distribution, and backflow prevention. The widespread application of cast iron valves is primarily attributed to their unique advantages.Advantages of Cast Iron Valves1. Material SuperiorityCast iron valves are typically made from high-quality gray cast iron or ductile iron, which possess excellent mechanical properties, wear resistance, and corrosion resistance. Cast iron valves have a long service life at normal temperature and pressure, with relatively low demands on fluid media, making them adaptable to various environments and usage scenarios.2. Excellent Sealing PerformanceCast iron valves employ precision manufacturing processes, with finely machined sealing surfaces between the valve seat and disc, ensuring tight coordination to effectively prevent fluid leakage. Furthermore, cast iron valves can further enhance sealing performance through methods such as adding sealing fillers, ensuring stable operation of fluid systems.3. Flexible OperationCast iron valves typically employ rotary or lift-type operating mechanisms, requiring minimal operating torque and providing flexible switching, facilitating maintenance and adjustment. Moreover, cast iron valves exhibit fast opening and closing speeds, enabling quick response to changes in fluid systems, and meeting the demands for rapid cutoff and regulation.4. VersatilityCast iron valves can be designed into different structures and specifications according to various usage requirements, such as globe valves, gate valves, and ball valves. Additionally, cast iron valves can select different materials and sealing structures based on different media, meeting the requirements of various fluid media.5. Safety and ReliabilityDuring the design and manufacturing process, cast iron valves strictly adhere to relevant national standards and specifications, ensuring the safety and reliability of products. Valve seats and discs are made of high-strength materials capable of withstanding high pressure and temperature, ensuring the stable operation of fluid systems. Furthermore, cast iron valves possess safety features such as fire resistance and explosion prevention, providing robust protection for industrial production.ConclusionCast iron valves play a significant role in fluid control systems due to their unique material advantages, excellent sealing performance, flexible operation, broad versatility, and safety and reliability characteristics. With the continuous advancement of technology and industrial development, cast iron valves will continue to be optimized and perfected, providing more efficient, reliable, and intelligent solutions for fluid control.

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Introduction:

The opening and closing part of the stop valve is a plug-shaped valve disc, and the sealing surface is flat or conical. The valve disc moves linearly along the center line of the valve seat. The movement form of the valve stem, there is also a lifting and rotating rod type, 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. Therefore, this type of shut-off valve is very suitable for shutting off or regulating and throttling. Because the opening or closing stroke of the valve stem of this type of valve is relatively short, and it has a very reliable shut-off function, and because the change of the valve seat port is in direct proportion to the stroke of the valve disc, it is very suitable for flow adjustment.

Field of Application&#;

Size Range: DN40 to DN300(1 1/2"-12")

Working Temperature: &#;120&#;

Allowable Operating Pressure:PN10/PN16

Globe Valves for use inpetrochemical industry, Chemical,Fiber Textiles, plastic, paper making, power industry, steel, rubber and gas systems.

Working Principle:

The working principle and characteristics of the globe valve

The valve plays an important role in cutting off and throttling the medium in the pipeline. As an extremely important cut-off valve, the shut-off valve is sealed by applying torque to the valve stem, and the valve stem is in the axial direction. The valve clack applies pressure to make the sealing surface of the valve clack closely fit the sealing surface of the valve seat, and prevent the medium from leaking along the gap between the sealing surfaces.

The sealing pair of the globe valve is composed of a valve flap sealing surface and a valve seat sealing surface, and the valve stem drives the valve flap to move vertically along the center line of the valve seat. During the opening and closing process of the globe valve, the opening height is small, the flow is easy to adjust, and the manufacturing and maintenance are convenient, and the pressure application range is wide.

Technical Specification&#;

1. Face to Face Dimension DIN EN-3

2. End Flange Dimension DIN EN-2

Advantage:

1.The structure of the stop valve is simpler than that of the gate valve, and the manufacture and maintenance are more convenient.

2.The sealing surface is not easy to wear and scratch, and the sealing performance is good. There is no relative sliding between the valve clack and the valve body sealing surface when opening and closing, so the wear and scratches are not serious, the sealing performance is good, and the service life is long.

3.When opening and closing, the disc stroke is small, so the height of the stop valve is smaller than that of the gate valve, but the structure length is longer than that of the gate valve.

4. Since the change of the valve seat port is proportional to the stroke of the valve disc, it is very suitable for flow adjustment, and it is easy to manufacture and maintain, and has a wide range of pressure applications.

Related links:
Proper Valve Identification and Labeling Standards and Tips

If you want to learn more, please visit our website LEFLOW.

Installation&Maintenance:

The installation and maintenance of the globe valve should pay attention to the following items:

1. The stop valve operated by hand wheel and handle can be installed at any position of the pipeline.

2. Handwheels, handles and micro-movement mechanisms are not allowed for lifting.

3. The flow direction of the medium should be consistent with the arrow direction shown on the valve body.

MATERIAL LIST

Part Name

Material

Body

GG25/GGG40

Seal Ring

Cast Brass/Stainless Steel

Disc

Ductile Iron with B62/SS

Packing

Graphite

Gland

Cast Iron/Ductile Iron

Bonnet

Ductile Iron

Stem

Stainless Steel

Handwheel

Cast Iron

If you want to learn more, please visit our website din cast iron globe valve.