Wafer Check Valves

Wafer check valves offer highly efficient and durable solutions for preventing backflow and ensuring the smooth operation of various industrial systems. These valves are a critical component in numerous applications, providing reliable, low-maintenance performance, and are designed to meet the rigorous demands of different industries. Below are the technical aspects that make wafer check valves an indispensable part of high-performance systems. 

Valve Type

Compact wafer-style check valve designed for preventing reverse flow efficiently.

Flow Regulation Method

Automatically regulates flow by opening or closing based on fluid direction and pressure.

Differential Pressure Range

Operates reliably within a wide pressure difference range, typically from 0.1 to 10 bar.

Hydraulic Authority Recommendation

Suitable for systems where hydraulic authority is maintained to ensure valve responsiveness.

Valve Characteristic Curve

Exhibits a quick opening characteristic allowing minimal pressure drop at start of flow.

Product Description

The wafer-style construction of check valves allows for a significant reduction in size and weight compared to traditional swing check or ball valves. By utilizing a two-bolt design, wafer check valves can be installed between flanges, eliminating the need for additional components like flanges or supports. This streamlined design not only reduces the overall footprint of the valve but also minimizes the weight, making it easier to handle during installation and maintenance. 

Test Point Configuration

Equipped with test points for easy flow measurement and system diagnostics.

Maximum Allowable Flow Velocity

Supports flow velocities up to 10 m/s without risk of damage or performance loss.

Leakage Class (per EN 12266-1)

Designed to meet Class IV leakage standards, ensuring tight sealing performance.

Body Material Options

Available in stainless steel, carbon steel, and ductile iron for diverse applications.

Design Pressure Class

Rated for pressure classes PN10, PN16, and PN25 to suit various system requirements.

Thermal Expansion Compatibility

Accommodates thermal expansion with flexible sealing elements to prevent leakage.

Installation Sensitivity

Minimal sensitivity; can be installed between flanges without special alignment tools.

Control Accuracy

Ensures precise flow control by responding accurately to changes in flow direction.

Position Repeatability

High repeatability with consistent valve seating and sealing on repeated cycles.

Technical Advantages

Wafer check valves are engineered to handle bidirectional flow, meaning they can effectively prevent backflow in both directions within a pipeline. This feature is essential for preventing damage to the system caused by reverse flow, ensuring that contaminants or fluids do not flow back into sensitive equipment or processes. The design incorporates a spring-assisted closure mechanism that enables automatic sealing when reverse flow is detected. This ensures that the valve remains closed until the system pressure drops below a certain threshold, providing continuous protection from backflow regardless of the direction of fluid movement. 

Constructed from durable materials such as stainless steel, brass, and specialized alloys, wafer check valves are built to withstand harsh environments and high-pressure conditions. Their robust construction and simplified design, with fewer moving parts, reduce the likelihood of failure and wear. By minimizing the risk of damage or malfunction, these valves require significantly less maintenance over time, leading to reduced operational downtime and lower maintenance costs. The spring-loaded components are designed for extended service life, reducing the frequency of replacements and inspections, which further drives down maintenance expenses. 

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Industry Applications

Petrochemical Industry

Wafer check valves regulate fluid flow in petrochemical plants, preventing reverse flow that could lead to process interruptions or equipment damage.

Pharmaceutical Manufacturing

Employed in sterile environments to maintain unidirectional flow, preventing contamination and ensuring precise fluid delivery in production lines.

Mining and Metallurgy

These valves are used in slurry transport systems to maintain one-way flow, protecting pumps and reducing operational wear from abrasive materials.

Refining Industry

Wafer check valves manage high-pressure fluids in refining processes, preventing backflow and safeguarding distillation columns and heat exchangers from damage.

Hydraulic Systems

Used in hydraulic circuits to prevent fluid backflow, ensuring safe and efficient operation of actuators, pumps, and valves in industrial machinery.

Cryogenic Systems

In cryogenic applications, wafer check valves control the flow of gases at extremely low temperatures, preventing reverse flow that could disrupt system integrity.

Wafer Check Valves

Efficient Sealing Mechanism

The sealing mechanism of wafer check valves is engineered for tight shutoff, ensuring minimal leakage under both low and high-pressure conditions. A spring-loaded poppet or disc is used to seal the valve tightly when backflow is detected, preventing the reverse flow of fluids that could damage sensitive system components or cause contamination. The precision-engineered components of the valve’s sealing system also ensure that even with fluctuating pressures, the valve remains sealed until the system pressure reaches a safe level for reopening. 

Wafer check valves are available in a wide range of materials, including corrosion-resistant alloys, which are essential for applications involving aggressive chemicals, high temperatures, or abrasive media. Materials like 316 stainless steel, Hastelloy, and duplex steel offer superior resistance to corrosion, ensuring that the valve performs reliably over a long lifespan, even in demanding conditions. 

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How does Frigate ensure the durability of its Wafer Check Valves in extreme temperature applications?

Frigate’s Wafer Check Valves are engineered using high-quality materials like 316 stainless steel and duplex alloys, which are highly resistant to thermal expansion and corrosion. These materials ensure that the valves can withstand both high and low-temperature environments without compromising performance. Additionally, Frigate’s valves are designed with advanced sealing technology, which adapts to temperature variations, preventing leaks. Rigorous testing under extreme conditions ensures reliability in critical applications like power generation and chemical processing. 

What is Frigate’s approach to minimizing backflow and pressure surges in high-pressure systems?

Frigate’s Wafer Check Valves are equipped with precision-engineered, spring-assisted disc mechanisms that provide rapid response to pressure changes, preventing backflow. The valve’s robust construction allows it to handle high-pressure surges without damage or malfunction. With materials like Hastelloy and tungsten carbide, Frigate ensures long-lasting performance even under intense conditions. Extensive quality control processes ensure that each valve is capable of maintaining tight seals in high-pressure systems, such as those found in oil and gas pipelines. 

How does Frigate optimize the installation process for Wafer Check Valves in tight or confined spaces?

Frigate’s Wafer Check Valves are designed with a compact, two-bolt construction that allows for installation between flanges, minimizing space requirements. This design reduces the need for additional components, such as supports or brackets, simplifying installation in confined spaces. Frigate offers customization options to match specific space constraints, ensuring the valve integrates seamlessly into existing systems. This approach minimizes downtime during installation and ensures efficient system setup, especially in industries like water treatment or chemical processing. 

What materials does Frigate use to manufacture Wafer Check Valves for highly corrosive environments?

For applications involving highly corrosive media, Frigate manufactures Wafer Check Valves using corrosion-resistant materials like 316 stainless steel, Hastelloy, and Titanium alloys. These materials are specifically chosen for their ability to withstand harsh chemicals and extreme environmental conditions. Frigate also applies specialized coatings to enhance the valve’s resistance to pitting, crevice corrosion, and stress corrosion cracking. Rigorous testing under controlled conditions ensures that these valves perform reliably in industries like petrochemical and pharmaceutical manufacturing. 

How does Frigate maintain precision in Wafer Check Valves used in critical applications like aerospace?

Frigate employs CNC machining and laser welding techniques to ensure the highest level of precision in its Wafer Check Valves. Each valve is subjected to extensive quality control tests to verify dimensional accuracy and sealing performance, critical in aerospace systems. Advanced computer modeling and simulations are used during the design phase to predict valve behavior under real-world conditions. Frigate’s commitment to tight tolerances ensures that these valves provide consistent, reliable performance in demanding aerospace environments. 

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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Wafer Check Valves

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