Trusted Wafer Type Butterfly Valve Manufacturer
NTVAL offers durable Wafer Type Butterfly Valves for industrial use, providing excellent sealing, reliable operation, and long service life. With quick delivery and strong after-sales support, NTVAL delivers cost-effective and dependable valve solutions.
Reliable Wafer Type Butterfly Valve
A wafer butterfly valve is a key part used to control the flow of liquids or gases in industries like oil and gas, chemical processing, and food production. Unlike other types, wafer-style butterfly valves are placed between two pipe flanges and can’t be used at the end of a pipe.
If this valve needs repair, the whole pipeline must be turned off to work on it. The choice between a wafer-style and other types of butterfly valves depends on what the project needs and how the valve will be used.
Quality Control
The PMI test verifies the wafer-type butterfly valve’s material composition, confirming it meets design standards for reliable performance.
PMI Test
The sealing test checks the valve’s closure, verifying it blocks any potential leaks and maintains pressure effectively under various conditions.
Sealing Test
The low emission test measures any potential leaks, helping to limit the release of harmful gases or fluids into the environment.
Low Emission Test
The impact test examines the valve’s durability, assessing its ability to handle sudden force or stress without breaking or deforming.
Impact Test
The dimension inspection verifies all measurements, allowing each part of the valve to fit precisely for smooth and dependable operation.
Dimension Inspection
The painting thickness test measures the coating’s depth, protecting the valve from corrosion and prolonging its service life in harsh environments.
Painting Thickness Test
PT, or penetrant testing, identifies surface cracks or flaws, highlighting areas that might need repair for added safety and quality.
PT
The material inspection checks the raw materials’ quality, confirming they can withstand the pressures and temperatures required for safe use.
Material Inspection
Our Valve Applications in Key Industries
Discover how our advanced valve solutions improve flow control, delivering enhanced efficiency, safety, and strict quality assurance.
Wafer-type butterfly valves resist corrosion and precisely control chemical flows, making them highly suitable for various chemical processing applications.
Chemical Processing
In the petrochemical industry, these valves effectively manage oil and gas flow, performing reliably even under high pressure and intense temperatures.
Petrol Chemical
Wafer-type butterfly valves withstand extreme temperatures and pressure, for dependable flow control in nuclear and power generation facilities.
O.P.G & Nuclear
These valves handle thick fluids like slurry well, offering smooth flow control and durability in the demanding pulp industry.
Pulp
Mining operations benefit from wafer-type butterfly valves as they manage abrasive materials effectively, delivering strong performance in tough environments.
Mining
In water and sewage systems, wafer-type butterfly valves control large fluid volumes reliably, supporting efficient and continuous operations.
Water & Sewage
Wafer-type butterfly valves regulate steam flow accurately, helping maintain consistent pressure and temperature across large steam distribution networks.
Steam System
In boiling systems, wafer-type butterfly valves control hot water and steam flow, contributing to stable and efficient heat management.
Boiling System
Get More Versatile Valve
Understanding Butterfly Valves
Butterfly valves are a type of valve used to quickly start, stop, or control the flow of liquids and gases. They work by rotating a disk connected to a rod, which makes it easy to operate and allows for precise control over the flow. Knowing how butterfly valves are built, how they work, and where they are commonly used can help in choosing the right valve for different applications.
Basic Design of Butterfly Valves
The butterfly valve is made up of several key components that work together to control fluid flow. Here are the main parts:
- Body: The main structure that houses the valve components and connects to the pipeline.
- Seal: Provides a tight closure to prevent leaks when the valve is in the closed position.
- Disc: The part that rotates to open or close the valve, positioned in the center of the pipe.
- Stem: A rod that connects the disc to the handle or actuator, allowing external control of the valve.
When the valve is closed, the disc is turned perpendicular to the pipe, effectively blocking the flow. This simple design makes butterfly valves a reliable choice for controlling fluid flow.
Operation of Butterfly Valves
Operating a butterfly valve is straightforward. When you turn the disc 90 degrees, it moves from a closed position to an open one. In the open position, the disc is parallel to the flow, allowing the fluid to pass through easily. To close the valve, you rotate the disc back to a perpendicular position, stopping the flow. This easy-to-understand mechanism allows for quick and accurate control of fluid flow.
Common Uses of Butterfly Valves
Butterfly valves are widely used across various industries due to their versatility and cost-effectiveness. Here are some common applications:
- HVAC Systems: Controlling the flow of air and non-corrosive gases.
- Water Treatment Plants: Regulating water flow in treatment processes.
- Power Generation Facilities: Managing the flow of cooling water and other fluids.
- Food and Beverage Processing: Handling liquids in production lines.
- Pharmaceutical Manufacturing: Controlling the flow of fluids in sterile environments.
- Chemical Processing Plants: Regulating the flow of various chemicals.
By understanding the basics of butterfly valves, including how they are designed, how they work, and where they are used, you can make better decisions when selecting them for different fluid control systems.
Advantages of Wafer Butterfly Valves
Wafer butterfly valves are a popular choice in many industries due to their ability to control fluid flow within piping systems. Here are some of the key benefits that make these valves a preferred option:
- Cost-Effective: Wafer butterfly valves are affordable and easy to install and maintain, which can lead to significant cost savings.
- Lightweight Design: These valves are lightweight, making them easy to handle and install. Their compact size is especially useful in tight spaces where efficient use of space is important.
- Effective Flow Control: The design of wafer butterfly valves allows for efficient control of fluid flow. The valve’s disc is positioned in the center of the pipe, enabling a quick response to changes in flow rate.
- Versatile Applications: Wafer butterfly valves are used in various industries, including water treatment, HVAC, chemical processing, and food production. Their versatility makes them a common choice across different fields.
- Lower Pressure Drop: Compared to other valve types, wafer butterfly valves typically create less pressure drop, which can result in energy savings and improved system performance.
Wafer butterfly valves offer reliable and efficient operation in numerous applications. Their compact design, ease of installation, and cost-effectiveness make them a practical solution for many industrial processes.
For more detailed information on wafer butterfly valves, industry-specific websites and technical resources provide in-depth data, including design details, material options, and performance characteristics, which can help guide decisions for specific applications.
Differences Between Lug Style and Wafer Style Butterfly Valves
Lug Style Butterfly Valves
Lug style butterfly valves have threaded lugs on the valve body, allowing for easy installation between 2 pipeline flanges using bolts. This design keeps the valve securely in place, making it ideal for systems that may need to be dismantled without affecting other flanged equipment. However, installing lug butterfly valves may require additional gaskets and longer bolts, which can increase the overall cost and complexity.
Wafer Style Butterfly Valves
Wafer style butterfly valves are more compact and lighter than lug style valves. They fit directly between 2 flanges, eliminating the need for extra bolts and nuts. Their slim design is perfect for applications with limited space, but proper alignment during installation is crucial to avoid leaks. The compact build of wafer valves results in lower operating torque, making them suitable for a wide range of industrial and commercial uses.
Deep Dive into Wafer Butterfly Valves
The Anatomy of a Wafer Butterfly Valve
A wafer butterfly valve has a straightforward yet effective design. It includes three main components: a round disc, a stem, and a sealing gasket. The disc is located at the center of the pipe and is connected to the stem. When the valve is open, the disc allows the fluid to flow freely through the pipe.
How Wafer Butterfly Valves Create a Seal
When the valve is closed, the disc rotates to a position perpendicular to the flow, pressing against the rubber gasket. This action creates a seal that stops the flow of the fluid or gas in the pipe. The design of the disc allows for a tight shut-off, making wafer butterfly valves suitable for a variety of applications.
Materials Used in Wafer Butterfly Valves
- Stainless steel: Known for its high corrosion resistance, making it ideal for use in environments where the valve may be exposed to harsh chemicals or moisture.
- Carbon steel: Offers strength and durability, commonly used in applications where high pressure is a factor.
- Ductile iron: Provides flexibility and strength, making it suitable for a wide range of temperatures and pressure conditions.
- PVC: A lightweight and corrosion-resistant material, often used in applications involving low-pressure systems or corrosive media.
Understanding the anatomy, sealing mechanism, and materials used in wafer butterfly valves highlights their effectiveness and versatility in industrial applications.
Working Mechanism of Wafer Butterfly Valves
The Role of the Disc in Flow Regulation
The disc in a wafer butterfly valve is key to controlling fluid flow. As the valve operates, the disc rotates to adjust the flow. When the disc is turned 90 degrees, the valve is fully open, allowing maximum flow; adjusting the disc angle helps regulate the flow as needed.
Quarter-Turn Operation Explained
Wafer butterfly valves operate with a simple quarter-turn, meaning a 90-degree rotation of the disc opens or closes the valve. This straightforward operation allows for quick and precise flow control, making these valves a preferred choice for many applications.
Actuation Options
Wafer butterfly valves can be operated manually or with electric and pneumatic actuators. Manual operation is easy to control by hand, while electric and pneumatic options allow for automated control, making them suitable for integration into advanced industrial systems. These options provide flexibility for different operational needs.
Applications of Wafer Butterfly Valves
Industries That Rely on Wafer Butterfly Valves
Wafer butterfly valves are commonly used across different industries because of their versatility and dependable performance. Here are some key industries that rely on these valves:
- Chemical Processing Plants: Used to control the flow of various chemicals, often in harsh or corrosive environments.
- Water and Wastewater Treatment Facilities: Help regulate the flow of water and other fluids in purification and sewage systems.
- HVAC Systems: Control the flow of air and gases to maintain proper heating, ventilation, and air conditioning.
- Pharmaceutical and Biotech Industries: Used to manage the flow of fluids in sterile and clean environments essential for production.
- Food and Beverage Processing: Regulate the flow of liquids and gases in food production, maintaining safety and hygiene standards.
- Power Generation Plants: Control the flow of steam, water, and other fluids used in power generation processes.
Selecting the Right Valve for Your Project
When choosing a wafer butterfly valve for your project, it’s important to consider a few key factors:
- Flow Requirements: Evaluate the flow characteristics of your system to determine the appropriate type and size of the valve needed for optimal performance.
- Pressure and Temperature: Consider the operating pressure and temperature conditions to select a valve that can handle the specific demands of your application.
- Material Compatibility: Select a valve made from materials that are compatible with the fluids or substances being handled, which will help prevent corrosion and extend the valve’s lifespan.
- Actuation Method: Decide between manual or automated actuation based on your operational needs, considering factors like control precision and ease of system integration.
By carefully evaluating these factors, you can choose the right wafer butterfly valve for your project, leading to smooth operation and long-term reliability.
Step-by-Step Installation Guide for Wafer Butterfly Valves
When installing a wafer butterfly valve, follow these steps to guarantee proper setup:
How to Maintain Your Wafer Butterfly Valve
Maintaining wafer butterfly valves is important for their long-term performance and durability. Here are key maintenance practices to follow:
- Regular Inspection: Periodically check the valve for any signs of wear, corrosion, or leakage. Make sure the valve operates smoothly and that it opens and closes properly.
- Lubrication: Apply the appropriate lubricant to keep the valve’s components moving smoothly. Regularly lubricate the shaft and bearings to reduce friction and extend the valve’s lifespan.
- Seal Replacement: If the valve seals show signs of wear or deterioration, replace them to prevent leaks. Make sure the new seals are suitable for the valve’s specific operating conditions.
- Cleanliness and Protection: Keep the valve and its surroundings clean to avoid the buildup of dirt and debris. Protect the valve from environmental factors that could cause corrosion or damage.
Troubleshooting Common Issues
Addressing common problems with wafer butterfly valves involves the following steps:
- Leakage: Identify where the leakage is coming from and inspect the seals and gaskets for any damage or misalignment. Adjust or replace the seals to stop the leakage and restore proper sealing.
- Operational Stiffness: If the valve is stiff when operating, check for obstructions or misalignment that might cause resistance. Lubricate the valve components to help them move smoothly without any sticking.
- Corrosion and Wear: Look for signs of corrosion or wear, especially in areas under high stress. Take steps to prevent further corrosion, and replace worn components if necessary.
Following these troubleshooting practices can help maintain the reliable performance of wafer butterfly valves and prevent operational issues.
Dimensions
Wafer Ends Butterfly Valve
- Type: Cast Steel Butterfly Valve
- Connection: Wafer Ends
- Seating: Metal Seating
- Design Standard: ASME B16.34
CLASS 150 DIMENSIONS | |||||||||||||||
FLANGE DIMENSION | MOUNTING BASE | W.T | |||||||||||||
SIZE | L | C | h | a | h1 | H | H1 | H2 | D2 | L1 | TYPE | C1 | n | h2 | |
3 | 48 | 152.4 | – | – | 19.1 | 282 | 258 | 142 | 200 | 165 | F07 | 70 | 4 | 9 | 21 |
4 | 54 | 190.5 | – | – | 19.1 | 294 | 270 | 162 | 200 | 165 | F07 | 70 | 4 | 9 | 27 |
5 | 57 | 215.9 | – | – | 22.2 | 319 | 295 | 170 | 200 | 165 | F07 | 70 | 4 | 9 | 32 |
6 | 57 | 241.3 | – | – | 22.2 | 340 | 316 | 179 | 200 | 165 | F07 | 70 | 4 | 9 | 35 |
8 | 64 | 298.4 | – | – | 22.2 | 384 | 344 | 208 | 300 | 270 | F10 | 102 | 4 | 11 | 53 |
10 | 71 | 361.9 | – | – | 25.4 | 434 | 394 | 241 | 300 | 270 | F10 | 102 | 4 | 11 | 74 |
12 | 81 | 431.8 | – | – | 25.4 | 520 | 470 | 267 | 400 | 335 | F14 | 140 | 4 | 18 | 95 |
14 | 92 | 476.3 | – | – | 28.6 | 544 | 494 | 316 | 400 | 335 | F14 | 140 | 4 | 18 | 131 |
16 | 102 | 539.7 | – | – | 28.6 | 643 | 578 | 349 | 500 | 375 | F16 | 165 | 4 | 22 | 165 |
18 | 114 | 577.8 | – | – | 31.8 | 660 | 595 | 381 | 500 | 375 | F16 | 165 | 4 | 22 | 230 |
20 | 127 | 635 | 1-1/8-8 | 28.6 | – | 695 | 630 | 412 | 500 | 375 | F16 | 165 | 4 | 22 | 280 |
24 | 154 | 749.3 | 1-1/4-8 | 31.8 | – | 813 | 743 | 473 | 600 | 485 | F25 | 254 | 8 | 18 | 450 |
CLASS 300 DIMENSIONS | |||||||||||||||
FLANGE DIMENSION | MOUNTING BASE | W.T | |||||||||||||
SIZE | L | C | h | a | h1 | H | H1 | H2 | D2 | L1 | TYPE | C1 | n | h2 | |
3 | 48 | 168.2 | – | – | 22.2 | 282 | 258 | 142 | 200 | 165 | F07 | 70 | 4 | 9 | 21 |
4 | 54 | 200 | – | – | 22.2 | 294 | 270 | 162 | 200 | 165 | F07 | 70 | 4 | 9 | 27 |
5 | 59 | 234.9 | – | – | 22.2 | 319 | 295 | 170 | 300 | 270 | F10 | 102 | 4 | 11 | 38 |
6 | 59 | 169.8 | – | – | 22.2 | 375 | 336 | 199 | 300 | 270 | F10 | 102 | 4 | 11 | 45 |
8 | 73 | 330.2 | – | – | 25.4 | 450 | 400 | 227 | 400 | 335 | F14 | 140 | 4 | 18 | 72 |
10 | 83 | 387.3 | 1-8 | 25.4 | – | 499 | 449 | 265 | 400 | 335 | F14 | 140 | 4 | 18 | 135 |
12 | 92 | 450.8 | 1-1/8-8 | 28.6 | – | 562 | 497 | 302 | 500 | 375 | F16 | 165 | 4 | 22 | 148 |
14 | 117 | 514.3 | 1-1/8-8 | 28.6 | – | 616 | 551 | 328 | 500 | 375 | F16 | 165 | 4 | 22 | 208 |
16 | 133 | 571.5 | 1-1/4-8 | 31.8 | – | 676 | 606 | 367 | 600 | 485 | F25 | 254 | 8 | 18 | 298 |
18 | 149 | 628.6 | 1-1/4-8 | 31.8 | – | 711 | 641 | 402 | 600 | 485 | F25 | 254 | 8 | 18 | 382 |
20 | 159 | 685.8 | 1-1/4-8 | 31.8 | – | 798 | 721 | 432 | 700 | 520 | F30 | 298 | 8 | 22 | 450 |
24 | 181 | 812.8 | 1-1/2-8 | 38.1 | – | 914 | 837 | 530 | 700 | 515 | F30 | 298 | 8 | 22 | 680 |
CLASS 600 DIMENSIONS | |||||||||||||||
FLANGE DIMENSION | MOUNTING BASE | W.T | |||||||||||||
SIZE | L | C | h | a | h1 | H | H1 | H2 | D2 | L1 | TYPE | C1 | n | h2 | |
3 | 56 | 168.2 | – | – | 22.2 | 289 | 265 | 148 | 200 | 165 | F07 | 70 | 4 | 9 | 29 |
4 | 64 | 215.9 | – | – | 25.4 | 370 | 330 | 180 | 300 | 270 | F10 | 102 | 4 | 11 | 38 |
5 | 78 | 266.7 | – | – | 28.6 | 405 | 355 | 195 | 400 | 335 | F14 | 140 | 4 | 18 | 55 |
6 | 78 | 292.1 | 1-8 | 25.4 | – | 420 | 370 | 225 | 400 | 335 | F14 | 140 | 4 | 18 | 75 |
8 | 102 | 349.2 | 1-1/8-8 | 28.6 | – | 490 | 425 | 255 | 500 | 375 | F16 | 165 | 4 | 22 | 136 |
10 | 117 | 431.9 | 1-1/4-8 | 31.8 | – | 545 | 480 | 310 | 500 | 375 | F16 | 165 | 4 | 22 | 200 |
12 | 140 | 488.9 | 1-1/4-8 | 31.8 | – | 630 | 560 | 330 | 600 | 485 | F25 | 254 | 8 | 18 | 295 |
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Additional General Insights Here
Specs of Wafer Type Butterfly Valve
Dimensions
Wafer Type Butterfly Valves are designed with a compact size that fits seamlessly between 2 flanges in a pipeline, ranging from 2 inches to 48 inches. The valve’s dimensions are carefully crafted to accommodate various pressure conditions, making it suitable for installations where space is limited. No wonder this design not only saves space but also simplifies installation and maintenance processes.
Materials of Construction
The body of the NTVAL Wafer Type Butterfly Valve is usually made from durable materials like cast iron or stainless steel. The disc, which controls the flow, can be made from stainless steel or other metals. These materials provide strength and longevity, making the valve reliable under various conditions.
Temperature Range
Wafer Type Butterfly Valves can operate in a broad temperature range, from -20°F to 300°F. This flexibility allows them to be used in both very hot and very cold environments. They are ideal for industries that require valves to function under different temperature conditions, for example, in chemical processing or food and beverage industries.
Features of Wafer Type Butterfly Valve
Quick Operation
The simple quarter-turn operation of wafer-type butterfly valves allows for rapid opening and closing. This quick operation is especially beneficial in applications where immediate flow control is necessary, such as in emergency shutdown systems or critical safety processes.
Bi-Directional Flow
These NTVAL valves support bi-directional flow, meaning they can control fluid flow in both directions. This feature makes them highly adaptable to different pipeline configurations. It also simplifies the design of the piping system by reducing the need for additional valves.
Strong Seal
Wafer Type Butterfly Valves provide a strong seal, preventing any fluid leakage. The seal is crafted from high-quality materials like EPDM rubber, which maintain their effectiveness over long periods. This feature is crucial for maintaining safety and efficiency in fluid control systems.
Benefits of Wafer Type Butterfly Valve
Increased Versatility
These valves are versatile, suitable for industries like water treatment, chemical processing, and oil and gas. They handle various fluids, including corrosive and abrasive substances, making them a valuable addition to diverse industrial processes.
Enhanced Performance
These valves offer dependable performance with a tight seal that prevents leaks. Their design provides consistent operation, even under high pressure. This reliability is crucial for maintaining safety and efficiency in heavy-duty operations.
Less Environmental Impact
Constructed from high-quality materials, Wafer Type Butterfly Valves offer excellent resistance to environmental factors such as corrosion, heat, and chemicals. This resistance extends the valve's lifespan and maintains its functionality over time.
Applications of Wafer Type Butterfly Valve
Food and Beverage Processing
Food and beverage processing plants rely on Wafer Type Butterfly Valves to control the flow of ingredients and cleaning agents. These valves are suitable for hygienic applications due to their smooth surfaces and easy cleaning. They help maintain the safety and quality of food and beverage products. Their quick operation and reliable sealing make them essential components in these processing plants.
Treatment Plants
NTVAL Wafer Type Butterfly valves play a crucial role in water treatment plants. They control the flow of water through different stages of treatment, from filtering to chemical addition. The valves’ compact design and reliable sealing capabilities make them ideal for this application. Turns out, their ease of maintenance helps keep water treatment processes running smoothly.
HVAC Systems
Heating, Ventilation, and Air Conditioning (HVAC) systems use wafer type butterfly valves to regulate airflow. These valves help maintain the desired temperature and air quality in buildings. Their lightweight design and easy installation make them a preferred choice in HVAC systems. Wafer type butterfly valves also offer precise control, which is essential for energy efficiency.
Irrigation Systems
In irrigation systems, wafer type butterfly valves manage water flow across fields and greenhouses. Their straightforward design makes them easy to operate, helping water reach the needed areas consistently. These valves are also compact and quick to install, making them ideal for large-scale agricultural setups.
3 Considerations When Buying Wafer Type Butterfly Valve
01
ISO 45001 Certification
ISO 45001 certification indicates the manufacturer’s commitment to health and safety standards, ensuring reliable and safe products. A certified manufacturer follows strict protocols, leading to higher-quality valves. Choosing a valve from an ISO 45001 certified manufacturer adds confidence in the product’s safety and reliability.
02
Anti-Cavitation
Anti-cavitation features are essential in high-velocity systems to prevent damage from pressure drops. Cavitation causes wear on the valve, leading to early failure. A valve minimizing cavitation lasts longer and maintains performance under challenging conditions, especially in applications with fluctuating pressures and high flow rates.
03
Reliable Manufacturer
The manufacturer’s reputation plays a crucial role in the valve’s quality and reliability. NTVAL, for example, produces valves that meet stringent industry standards. Choosing a well-regarded manufacturer ensures quality products and support. A reliable manufacturer also offers better spare parts availability, reducing long-term maintenance costs.
FAQS About Wafer Type Butterfly Valve
No, NTVAL’s Wafer Butterfly Valves are designed for minimal maintenance due to their durable construction. Simple inspections and cleaning are usually enough to keep them functioning well over time.
Yes, these valves are compatible with manual, electric, and pneumatic actuators. This compatibility allows for flexible control options depending on the application.
No, these wafer butterfly valves are designed for straightforward installation with standard face-to-face dimensions. Their compact design integrates smoothly into existing piping systems, making installation quick and efficient.
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