Knife gate valve working principle

Understanding the knife gate valve working principle is essential for industries handling fluids with high solid content, such as wastewater treatment, mining, and pulp & paper. Unlike conventional valves, a knife gate valve is specifically designed to cut through thick media, ensuring smooth flow regulation. To fully grasp how it functions, it’s important to explore knife gate valve types, key knife gate valve parts, and the differences in performance when comparing a knife valve vs gate valve.

What is a knife gate valve?

A knife gate valve is a type of valve designed to regulate or isolate the flow of fluids containing solids, such as slurries, powders, and wastewater. It features a sharp-edged gate that moves up and down to cut through thick media, preventing clogging and ensuring smooth operation. The knife gate valve working principle relies on a linear motion to either fully open or fully close the flow path, making it ideal for on-off applications rather than throttling.

There are different knife gate valve types, including unidirectional and bidirectional designs, each suited for specific industrial applications. The key knife gate valve parts include the body, gate, seat, actuator, and packing, all working together to provide a tight seal and efficient performance. When comparing a knife valve vs gate valve, the knife gate valve is the better choice for handling thick, solid-laden fluids, while a standard gate valve is more suitable for clean liquids and gases.

Knife gate design and characteristics

The knife gate valve working principle is based on a sharp-edged gate that slides up and down to control fluid flow, making it ideal for handling slurries, powders, and viscous materials. Its unique design and characteristics make it highly effective in industries like wastewater treatment, mining, and pulp & paper processing.

Design Features:

1. Thin, Sharp-Edged Gate – The gate is designed to cut through thick or solid-laden fluids, preventing blockages.
2. Linear Motion – The valve operates by moving the gate vertically to open or close the flow completely.
3. Compact Body – Typically made from stainless steel or cast iron, ensuring durability and corrosion resistance.
4. Sealing Mechanism – Utilizes elastomer or metal seats to provide a tight seal, reducing leakage.
5. Various Actuation Methods – Can be operated manually (handwheel), pneumatically, electrically, or hydraulically.

Key Characteristics:

• Highly Efficient for Thick Fluids: Unlike conventional valves, it handles slurries, pulp, and other dense materials effectively.
• Minimal Pressure Drop: When fully open, it allows an unobstructed flow path.
• Available in Different Configurations: Various knife gate valve types, including unidirectional and bidirectional, cater to different flow conditions.
• Replaceable Parts: The main knife gate valve parts, such as the seat and packing, can be replaced easily for maintenance.
• Differences from Standard Gate Valves: In a knife valve vs gate valve comparison, knife gate valves excel in slurry applications, whereas traditional gate valves are better suited for clean fluids.

These design elements ensure that knife gate valves offer reliable performance in demanding applications, making them a preferred choice in heavy-duty industries.

Read also: Difference Between Ball and Butterfly Valve

Knife gate valve working principle

The knife gate valve working principle is based on a simple yet effective sliding gate mechanism that moves up and down to control the flow of fluids, especially those containing solids, slurries, or thick substances. Unlike conventional valves, the knife gate valve is specifically designed to cut through and handle challenging media without clogging.

How It Works:

1. Opening the Valve: When the actuator (manual, pneumatic, electric, or hydraulic) is operated, the gate lifts upwards, allowing fluid to pass through. The sharp edge of the gate ensures that solid particles do not obstruct the opening.
2. Closing the Valve: As the actuator lowers the gate, it moves down to block the flow completely. The sharp blade-like gate cuts through any solid or viscous material, ensuring a tight shut-off.
3. Sealing Mechanism: Depending on the knife gate valve types, sealing is achieved using elastomer or metal seats, preventing leakage. Bidirectional valves provide sealing in both directions, whereas unidirectional valves seal in one direction only.
4. Minimal Pressure Drop: When fully open, the valve provides a straight, unobstructed flow path, reducing pressure loss.

Key Factors in Operation:

• Main Components: The primary knife gate valve parts include the body, gate, seat, actuator, and packing, all working together for efficient operation.
• Application-Specific Design: Some designs include rising or non-rising stems, depending on space constraints and maintenance needs.
• Comparison to Other Valves: When considering a knife valve vs gate valve, knife gate valves are superior for thick, solid-laden fluids, while traditional gate valves are better for clean liquids and gases.

This simple but effective mechanism makes the knife gate valve a preferred choice in industries like wastewater treatment, mining, and pulp & paper, where handling dense or abrasive materials is crucial.

Where are knife gate valves used?

The knife gate valve working principle makes it ideal for applications requiring reliable shut-off in systems handling thick fluids, slurries, and solid-laden materials. Due to their ability to cut through heavy media, knife gate valves are widely used in industries where conventional valves might clog or fail.

Common Applications:

1. Wastewater Treatment Plants
   • Used for controlling sludge, raw sewage, and other solid-containing wastewater.
   • Prevents clogging in pipelines handling thick or fibrous materials.
2. Mining and Minerals Processing
   • Essential for handling abrasive slurries, sand, and ore concentrates.
   • Helps in directing material flow in extraction and processing operations.
3. Pulp & Paper Industry
   • Controls the flow of pulp, which contains fibers and other solid particles.
   • The sharp gate ensures smooth operation without buildup or blockages.
4. Power Plants (Ash Handling Systems)
   • Used in handling fly ash and bottom ash in coal-fired power plants.
   • Prevents material buildup in pipelines, ensuring efficient flow control.
5. Chemical and Petrochemical Industries
   • Handles viscous fluids, resins, and chemical slurries with ease.
   • Provides effective shut-off in corrosive environments.
6. Food and Beverage Processing
   • Used for processing thick food products like syrups, fruit pulps, and dairy slurries.
   • Stainless steel variants ensure hygiene and corrosion resistance.
7. Cement and Bulk Powder Handling
   • Ideal for controlling the flow of dry bulk materials such as cement, sand, and powders.
   • Prevents blockages in pneumatic and gravity-fed conveying systems.

Why Knife Gate Valves Are Preferred?

• Their knife gate valve types cater to different operational needs, such as unidirectional and bidirectional sealing.
• The design ensures reliable operation with replaceable knife gate valve parts for easier maintenance.
• Compared to standard gate valves, a knife valve vs gate valve comparison highlights that knife gate valves perform better in handling slurries and thick fluids, while traditional gate valves are better suited for clean liquids and gases.

These features make knife gate valves a go-to solution for industries requiring efficient handling of challenging media.

Types of knife gate valves

The knife gate valve working principle varies slightly depending on the type of valve, which is designed to meet different industrial needs. Knife gate valves come in multiple configurations, each suited for specific applications involving slurries, powders, and thick fluids.

1. Unidirectional Knife Gate Valve

• Designed to seal in one direction only.
• Commonly used in applications where the flow direction is constant.
• Features a single-seat design, ensuring a tight shut-off in one flow direction.
• Ideal for wastewater treatment, mining, and pulp & paper industries.

2. Bidirectional Knife Gate Valve

• Provides sealing in both flow directions.
• Has two seats, allowing fluid to move in either direction without leakage.
• Preferred for applications where flow direction may change.
• Used in industries like power plants, chemical processing, and food production.

3. Wafer Knife Gate Valve

• Compact, lightweight design for easy installation between pipeline flanges.
• Reduces material and installation costs.
• Best suited for low-pressure applications handling slurries and bulk materials.

4. Lug Knife Gate Valve

• Features threaded lugs that allow it to be installed or removed without affecting the entire pipeline.
• Provides a more secure connection, making it suitable for higher-pressure applications.
• Commonly used in mining, chemical processing, and industrial wastewater treatment.

5. Slurry Knife Gate Valve

• Specifically designed for extremely thick slurries and abrasive materials.
• Features a heavy-duty body and reinforced gate to handle high wear conditions.
• Used in mining, minerals processing, and cement industries.

6. Through-Gate Knife Gate Valve

• Designed to allow the gate to pass completely through the valve body when opened.
• Eliminates the buildup of material on the gate, reducing maintenance needs.
• Ideal for applications dealing with sticky or highly viscous fluids.

Read also: Types of automatic valves

Key Differences in Knife Gate Valve Types

• The choice of knife gate valve types depends on flow direction requirements and pressure conditions.
• All designs include critical knife gate valve parts, such as the gate, seat, actuator, and packing, ensuring efficient operation.
• When comparing a knife valve vs gate valve, knife gate valves are better for slurries and solids, while standard gate valves are more suited for clean fluids.

Selecting the right type ensures optimal performance, reliability, and longevity in demanding industrial environments.

What is the difference between knife gate valves and gate valves?

Both knife gate valves and standard gate valves are used to control fluid flow by opening or closing a gate, but they are designed for different applications. The knife gate valve working principle is optimized for handling slurries and solid-laden fluids, while traditional gate valves are better suited for clean liquids and gases.

1. Design Differences

• Knife Gate Valve:
  • Features a thin, sharp-edged gate that can cut through thick or solid-containing fluids.
  • Typically has a compact, lightweight body with a lower-pressure rating.
  • Available in knife gate valve types like unidirectional, bidirectional, and slurry valves.
• Gate Valve:
  • Uses a solid, wedge-shaped or parallel gate to stop or allow flow.
  • Designed for high-pressure applications and provides a more rigid structure.
  • Generally bulkier and heavier than knife gate valves.

2. Application Differences

• Knife Gate Valve:
  • Best for slurries, powders, wastewater, and other viscous or solid-laden fluids.
  • Commonly found in industries like mining, pulp & paper, wastewater treatment, and chemical processing.
• Gate Valve:
  • Used for clean liquids and gases where solid particles are not present.
  • Found in water distribution, oil & gas, and general industrial applications.

3. Sealing and Leakage Prevention

• Knife Gate Valve:
  • Typically has a soft or metal seat, but may not provide a bubble-tight seal.
  • Some knife gate valve parts include elastomer seals for better shutoff in bidirectional designs.
• Gate Valve:
  • Provides a tighter shutoff with a metal-to-metal or resilient seat.
  • Designed for high-pressure and high-temperature sealing.

4. Operation and Maintenance

• Knife Gate Valve:
  • Requires less operating force due to its sharp gate design.
  • Easier to maintain because it has fewer moving parts.
• Gate Valve:
  • Requires more force to operate, especially in high-pressure applications.
  • May need more frequent maintenance due to potential buildup of debris in the sealing area.

Which One to Choose?

• If dealing with slurries, thick fluids, or solid-laden materials, a knife gate valve is the better option.
• For clean water, gas, and oil applications requiring high-pressure sealing, a gate valve is more suitable.

Understanding these differences ensures the right valve is selected for the intended application, improving efficiency and reducing maintenance costs.

Advantages of a knife gate valve

The knife gate valve working principle is designed for handling slurries, viscous fluids, and solid-laden materials, making it highly effective in demanding industrial applications. Compared to traditional gate valves, knife gate valves offer several advantages in terms of efficiency, durability, and ease of maintenance.

1. Excellent Performance with Slurries and Solids

• The sharp-edged gate cuts through thick or solid-containing fluids, preventing blockages.
• Ideal for industries like wastewater treatment, mining, and pulp & paper.

2. Minimal Pressure Drop

• When fully open, the valve allows an unobstructed flow path, reducing pressure loss.
• Ensures smooth and efficient fluid movement.

3. Compact and Lightweight Design

• Compared to traditional gate valves, knife gate valves are more compact and require less space.
• Easier to install in tight piping systems.

4. Versatile Knife Gate Valve Types

• Available in unidirectional and bidirectional designs to suit different flow conditions.
• Variations like wafer, lug, and slurry knife gate valves cater to specific industrial needs.

5. Low Maintenance and Easy Repairs

• Simple structure with fewer moving parts reduces maintenance requirements.
• Key knife gate valve parts, such as seats and packing, can be easily replaced.

6. Cost-Effective for Low-Pressure Applications

• Typically more affordable than standard gate valves in low-pressure systems.
• Reduces operational costs in applications handling abrasive or thick media.

 Comparison: Knife Valve vs Gate Valve

• Knife gate valves excel in handling slurries and bulk materials, while traditional gate valves are better for clean fluids and gases.
• The cutting action of a knife gate valve makes it more reliable in preventing clogging compared to a standard gate valve.

The combination of knife gate valve types, efficient knife gate valve parts, and superior handling of challenging fluids makes the knife gate valve a preferred choice in various industries. Its ability to minimize clogging, reduce pressure drop, and offer easy maintenance makes it an essential component in heavy-duty applications.

Disadvantages of knife gate valves

While the knife gate valve working principle makes it highly effective for handling slurries, thick fluids, and solid-laden materials, it does have some limitations. Understanding these drawbacks helps in selecting the right valve for the intended application.

1. Not Suitable for High-Pressure Applications

• Knife gate valves are designed primarily for low to medium pressure systems.
• In high-pressure environments, they may not provide a completely reliable seal compared to other valve types.

2. Slower Operation

• Knife gate valves typically have a linear motion mechanism, meaning they take longer to open or close compared to quarter-turn valves (e.g., ball or butterfly valves).
• This can be a disadvantage in systems requiring quick shut-off.

3. Potential for Leakage

• While some knife gate valve types provide bidirectional sealing, many unidirectional models may leak slightly in the opposite flow direction.
• Over time, wear on knife gate valve parts, such as the seat and packing, can lead to minor leaks.

4. Not Ideal for Clean Fluid Applications

• In a knife valve vs gate valve comparison, gate valves perform better when handling clean water, gas, and oil.
• Knife gate valves are optimized for slurries and solids but may not be necessary for standard fluid control systems.

5. Requires Regular Maintenance in Abrasive Conditions

• While knife gate valves are excellent for abrasive slurries, prolonged exposure to highly corrosive or abrasive materials can cause faster wear on the gate and seat.
• Regular inspection and replacement of worn knife gate valve parts may be needed to maintain efficiency.

6. Limited Throttling Capability

• Knife gate valves are primarily designed for full open or full close positions.
• Using them for throttling (partial opening) can cause damage to the gate and lead to erosion over time.

Despite these limitations, knife gate valves remain the preferred choice for industries handling slurries, wastewater, and bulk materials. However, for high-pressure, clean fluid, or fast shut-off applications, alternative valves like traditional gate, ball, or butterfly valves may be a better fit.

Applications of knife gate valves

The knife gate valve working principle makes it ideal for handling slurries, thick fluids, and solid-laden media. Its ability to cut through heavy materials and provide reliable shut-off makes it a preferred choice in various industries.

1. Wastewater Treatment Plants

• Controls the flow of sludge, raw sewage, and treated wastewater.
• Prevents clogging in pipelines handling fibrous and solid-laden materials.
• Used in filtration and sedimentation processes.

2. Mining and Mineral Processing

• Handles abrasive slurries, ore concentrates, and tailings.
• Reduces pipeline wear in high-density solid transport systems.
• Essential in slurry transport lines and dewatering applications.

3. Pulp & Paper Industry

• Manages the flow of pulp, wood fibers, and paper stock.
• Prevents material buildup in processing lines.
• Ensures smooth operation in recycling and production plants.

4. Power Plants (Ash Handling Systems)

• Controls the movement of fly ash and bottom ash in coal-fired power stations.
• Used in cooling water systems and slurry pipelines.
• Provides reliable shut-off in high-temperature applications.

5. Chemical and Petrochemical Industries

• Regulates the flow of viscous fluids, resins, and slurries.
• Resistant to corrosive chemicals and aggressive media.
• Commonly used in polymer, paint, and fertilizer manufacturing.

6. Food and Beverage Processing

• Used for handling thick liquids like syrups, fruit pulps, and dairy slurries.
• Stainless steel variants ensure hygiene and corrosion resistance.
• Found in breweries, sugar refineries, and dairy plants.

7. Cement and Bulk Powder Handling

• Controls the flow of cement, sand, and dry bulk powders.
• Prevents blockages in pneumatic and gravity-fed conveying systems.
• Reduces wear in high-abrasion applications.

8. Marine and Shipbuilding

• Used in ballast and bilge systems to manage water flow.
• Handles wastewater and sludge in confined spaces.
• Ensures durability in harsh marine environments.

Why Choose Knife Gate Valves?

• Available in different knife gate valve types to suit specific applications.
• Features replaceable knife gate valve parts for easier maintenance.
• A knife valve vs gate valve comparison shows knife gate valves are superior for handling thick and abrasive media, while gate valves are better for clean fluids.

These applications highlight the versatility and effectiveness of knife gate valves in demanding industrial environments.

Knife gate valve installation 

Proper installation of a knife gate valve ensures optimal performance and longevity. The knife gate valve working principle depends on precise alignment and secure sealing to handle slurries, viscous fluids, and solid-laden materials effectively.

1. Pre-Installation Checks

• Before installing the valve, ensure:
•  The pipeline is clean and free of debris.
•  The valve matches the required knife gate valve types and specifications.
• All knife gate valve parts are intact, with no visible damage.
• The pipeline flanges are properly aligned to prevent stress on the valve body.

2. Installation Steps

Step 1: Positioning the Valve

• Place the knife gate valve between the pipe flanges, ensuring the flow direction aligns with the markings on the valve body.
• For unidirectional knife gate valves, ensure the seat faces the correct direction.
• In a knife valve vs gate valve comparison, knife gate valves require precise alignment due to their thin gate structure.

Step 2: Securing the Valve

• Use appropriate gaskets between the valve and flanges for a proper seal.
• Insert bolts and tighten them evenly in a crisscross pattern to avoid misalignment.
• Do not over-tighten, as this may damage the valve body or gaskets.

Step 3: Connecting the Actuator

• If the valve has a manual handwheel, gear, pneumatic, or electric actuator, ensure proper connection and alignment.
• Check that the actuator moves smoothly without excessive force.

Step 4: Testing and Inspection

• Open and close the valve several times to confirm smooth operation.
• Check for leaks by pressurizing the system and inspecting around the gaskets and flange connections.
• If leakage occurs, re-tighten the bolts or replace damaged sealing components.

3. Post-Installation Maintenance

• Periodically inspect the valve for wear and buildup, especially in slurry applications.
• Lubricate moving knife gate valve parts as needed.
• Ensure that the gate moves freely to prevent operational failures.

Proper installation of a knife gate valve ensures efficient sealing and smooth operation, especially in industries handling slurries and abrasive materials. Choosing the right knife gate valve types and following these installation steps will enhance performance and longevity.

Read also: Difference between single eccentric and double eccentric butterfly valves

Applications of knife gate valves

The knife gate valve working principle is designed for handling slurries, thick fluids, and solid-laden media, making it ideal for demanding industrial applications. These valves provide efficient shut-off and minimal clogging, ensuring smooth operation across various sectors.

1. Wastewater Treatment Plants

• Used for controlling the flow of raw sewage, sludge, and treated wastewater.
• Prevents clogging in pipelines carrying fibrous or solid materials.
• Common in sedimentation and filtration systems.

2. Mining and Mineral Processing

• Handles abrasive slurries, ore concentrates, and tailings.
• Reduces wear and tear in slurry transport pipelines.
• Essential for dewatering and mineral separation processes.

3. Pulp & Paper Industry

• Manages the flow of pulp stock, wood fibers, and recycled materials.
• Prevents blockages in processing lines and ensures consistent operation.
• Used in digesters, stock preparation, and wastewater treatment in paper mills.

4. Power Plants (Ash Handling Systems)

• Regulates fly ash and bottom ash movement in coal-fired plants.
• Controls the flow of cooling water and slurry mixtures.
• Resistant to high temperatures and abrasive materials.

5. Chemical and Petrochemical Industries

• Used for processing slurries, resins, and other viscous or corrosive chemicals.
• Provides reliable shut-off in aggressive media handling.
• Common in fertilizer production, polymer manufacturing, and chemical processing.

6. Food and Beverage Processing

• Handles thick liquids like fruit pulps, syrups, and dairy slurries.
• Stainless steel knife gate valve types ensure hygiene and corrosion resistance.
• Used in breweries, sugar refineries, and dairy processing plants.

7. Cement and Bulk Powder Handling

• Controls the flow of dry powders like cement, sand, and other granular materials.
• Prevents blockages in pneumatic and gravity-fed conveying systems.
• Reduces wear in high-abrasion applications.

8. Marine and Shipbuilding

• Used in ballast control and bilge water management systems.
• Handles wastewater and sludge in confined marine environments.
• Durable in saltwater and corrosive conditions.

Read also: Types of automatic valves

Why Choose Knife Gate Valves?

 Available in different knife gate valve types for specific applications.
Key knife gate valve parts like replaceable seats enhance durability.
In a knife valve vs gate valve comparison, knife gate valves perform better with thick or solid-containing media.

Knife gate valves are widely used in industries requiring efficient handling of slurries, powders, and bulk materials. Their ability to provide a smooth shut-off and prevent clogging makes them an essential component in many industrial systems.

Knife Gate Valve Maintenance Guide

Proper maintenance of a knife gate valve ensures long-term efficiency and reliability, especially in applications dealing with slurries, thick fluids, and solid-laden media. Since the knife gate valve working principle involves a sharp-edged gate for cutting through heavy materials, regular upkeep is necessary to prevent wear and leakage.

1. Routine Inspection

• Visually inspect the valve for signs of wear, corrosion, or leakage.
• Check knife gate valve parts such as the seat, packing, and gate for damage.
• Ensure the actuator (manual, pneumatic, or electric) operates smoothly without excessive force.

2. Cleaning and Lubrication

• Flush the valve regularly to remove debris, buildup, or dried residues, especially in slurry applications.
• Apply appropriate lubrication to the stem and moving components to reduce friction.
• Avoid over-lubricating, as excess grease may attract contaminants.

3. Packing and Seal Replacement

• Check the packing gland for leaks and tighten if necessary.
• Replace worn-out packing to maintain a proper seal and prevent leakage.
• Ensure that gaskets and sealing rings are in good condition, as damaged seals can affect performance.

4. Preventing Blockages

• In high-solid-content applications, open and close the valve periodically to prevent material buildup.
• For bidirectional knife gate valve types, ensure that the sealing surfaces remain clean to prevent leaks.
• If blockage occurs, do not force the valve shut—clean it first to avoid damage.

5. Addressing Wear and Tear

• Regularly check for erosion, especially in abrasive slurry applications.
• Replace worn knife gate valve parts, such as seats and gates, before they affect performance.
• Compare the wear rate with expected service life and schedule replacements accordingly.

6. Testing and Calibration

• Perform pressure tests to ensure the valve provides a proper shut-off.
• Verify actuator responsiveness and ensure there is no excessive play in manual or automatic controls.
• Confirm that the valve opens and closes fully without obstructions.

 Comparison: Knife Valve vs Gate Valve Maintenance

• Knife gate valves require more frequent cleaning due to their handling of slurries and thick fluids.
• Gate valves, used for clean fluids, typically require less frequent maintenance but may face sealing issues over time.
• Choosing the right knife gate valve types for the application reduces maintenance needs.

Regular maintenance of a knife gate valve extends its lifespan, ensures efficient operation, and prevents costly breakdowns. By monitoring knife gate valve parts, keeping components clean, and replacing worn seals, industries can maintain optimal performance in demanding applications.

Anasia’s products

Anasia, a leading process automation provider,  offers a premium range of knife gate valves designed to meet the demanding requirements of various industries, including wastewater treatment, mining, pulp & paper, and chemical processing. Their valves are built with high-quality materials to ensure durability, resistance to wear and corrosion, and reliable performance in handling thick, abrasive, and high-viscosity fluids. Anasia provides multiple knife gate valve types, including unidirectional, bidirectional, lug-style, and wafer-style configurations, catering to different operational needs. With advanced engineering, precise actuation options (manual, pneumatic, or electric), and a commitment to quality, Anasia’s knife gate valves help businesses optimize their flow control systems, reduce maintenance costs, and enhance overall efficiency.

Conclusion

In summary, the knife gate valve working principle revolves around its ability to efficiently handle thick, viscous, or solid-laden fluids by utilizing a sharp-edged gate. With various knife gate valve types available, each suited for specific applications, and crucial knife gate valve parts ensuring reliable operation, these valves offer significant advantages in demanding environments. When comparing a knife valve vs gate valve, the choice depends on the application’s requirements, with knife gate valves excelling in handling slurry and bulk materials effectively.

FAQs

How do you find a valve leak?

To detect a valve leak, follow these steps:

1. Visual Inspection – Look for signs of leakage around the valve body, stem, and seals.
2. Listen for Hissing Sounds – A leaking valve may produce a faint hissing noise due to escaping fluid or gas.
3. Pressure Drop Test – Monitor system pressure; a sudden or continuous drop may indicate a leak.
4. Soap Bubble Test – Apply soapy water around the valve’s sealing areas; bubbles will form if there is a leak (useful for gas valves).
5. Thermal Imaging – Infrared cameras can detect temperature differences caused by leaking fluids.
6. Dye or Ultrasonic Testing – For critical applications, specialized tests like dye penetration or ultrasonic leak detection can help identify small leaks.

What are the three basic functions of valves?

Valves serve three primary functions in fluid control systems:

1. Regulation – Controlling the flow rate, pressure, or direction of fluids within a system.
2. Isolation – Completely stopping or allowing flow to prevent contamination, maintenance, or emergency shutdowns.
3. Backflow Prevention – Ensuring fluid flows in only one direction, preventing contamination or damage to equipment.

Anasia’s knife gate valves are designed to provide reliable isolation and flow control, ensuring efficient operation across various industrial applications.