Industrial-grade Excellence: Embark on a journey of unmatched durability and superior performance with our Industrial-grade Excellence. Crafted to withstand the rigors of demanding environments, this product epitomizes reliability and cutting-edge technology. Premium Stainless Steel/Carbon Steel Flange: Elevate your installations with our top-tier Stainless Steel and Carbon Steel Flange. Designed for precision and resilience, this flange guarantees a secure and long-lasting connection across a multitude of applications. Vertical Check Valve: Discover the epitome of efficient engineering with our Vertical Check Valve, engineered for seamless integration into your fluid control systems. Perfectly suited for vertical pipelines, this valve ensures unidirectional flow with utmost precision.
Product Description
Structure & Working Principle: Delve into the sophisticated architecture and operational prowess of our check valve. Engineered for optimal performance, the structure embodies both elegance and efficiency, ensuring flawless functionality in all scenarios.
Innovative Design Features: Explore the remarkable features that set our check valve apart. Each aspect is meticulously crafted to enhance performance and reliability, offering solutions that go beyond conventional design.
Lift-type Design: Experience seamless vertical installations with our Lift-type Design. The disc's graceful movement along the vertical centerline ensures optimal flow control, making it the ideal choice for vertical applications.
Spring-assisted Sealing: Our state-of-the-art Spring-assisted Sealing offers unmatched responsiveness to pressure changes. Engineered for precision, it guarantees reliability, with select models featuring reinforced springs for exceptional performance in horizontal pipelines.
Operation: Master the art of fluid control with our meticulously designed operation mechanisms. Every feature is crafted to ensure ease of use and reliability, providing superior performance across a wide range of conditions.
Closed by Default: Safeguard your system with our valve's default closed position under no-flow conditions. This essential feature ensures that your operations remain secure and efficient, even in the absence of flow.
Efficient Forward Flow: Effortless performance is at the core of our design. The inlet pressure easily overcomes the spring force, smoothly lifting the disc to facilitate an efficient and seamless flow, ensuring optimal operation.
Prevention of Reverse Flow: Our innovative design effectively prevents reverse flow. The harmonious combination of spring and backpressure ensures the disc closes securely, providing a robust defense against backflow.
Key Specifications: Discover the exceptional specifications that define our check valve. Each parameter is meticulously tailored to meet diverse operational needs, ensuring unparalleled performance and reliability.
Pressure Rating: PN16~PN40 (150LB-300LB), tailored for diverse operational needs: Our valves are engineered to accommodate a wide range of pressure requirements, ensuring compatibility and performance across various applications.
Temperature Range: Discover the versatility of our check valves, designed to perform efficiently across a broad temperature range, ensuring reliability and stability in diverse environments.
- Carbon Steel (WCB): Performs efficiently up to ≤425°C, accommodating water, oil, and steam: Experience the robust performance of our Carbon Steel valves, adept at handling high temperatures while maintaining efficiency with water, oil, and steam.
- Stainless Steel (304/316): Functions optimally up to ≤200°C, perfect for corrosive media: Our Stainless Steel valves are crafted to excel in corrosive environments, offering optimal performance and longevity at elevated temperatures.
Materials & Standards: Our products are constructed from premium materials and adhere to stringent standards, ensuring a harmonious blend of durability, reliability, and performance.
- Body Materials: Our valve bodies are crafted from resilient materials known for their strength and reliability, ensuring peak performance in demanding applications.
- Durable Carbon Steel (WCB) and resilient Stainless Steel (304/316): Select from our robust Carbon Steel or resilient Stainless Steel options, each designed to deliver unmatched performance and durability.
Dimensions & Connection: Our valves are designed with versatility in mind, offering a range of dimensions and connection options to seamlessly integrate into your systems.
- Nominal Diameter (DN): Ranges from DN15 to DN350, catering to various applications: Our valves come in a variety of sizes, ensuring a perfect fit for your specific application requirements.
- Connection Type: Flange (RF/FF), ensuring a secure fit: Opt for our flange connections, engineered for a secure and reliable fit, enhancing the integrity and performance of your system.
Applications: Unleash the potential of our check valves across a multitude of applications, designed to deliver effective solutions for a diverse range of industries.
- Media: Efficient with water, steam, oils, as well as weak acids like nitric acid, and strong corrosives such as acetic acid: Our valves are engineered to handle a wide array of media, from common fluids to aggressive chemicals, ensuring versatility and reliability.
- Industries: Our valves are the preferred choice for diverse industries, providing dependable performance and enhancing operational efficiency.
- Oil & Gas: Provides precise unidirectional flow control: Our valves are essential for the Oil & Gas industry, offering reliable unidirectional flow control to optimize your operations.
- Pharmaceutical: Ensures protection against backflow contamination: Trust our valves in pharmaceutical applications to safeguard against backflow, ensuring the purity and integrity of your processes.
- Power Plants: Essential for boiler feedwater protection: Our valves are crucial in power plants, providing essential protection for boiler feedwater systems, enhancing safety and efficiency.
- Wastewater Treatment: Ideal for pump discharge lines, enhancing operational efficiency: Equip your wastewater treatment systems with our valves, designed to optimize the efficiency of pump discharge lines.
Installation & Maintenance: Experience the ease of installation and maintenance with our expertly designed valves, engineered for longevity and optimal performance.
- Installation: Vertical mounting is essential for gravity-assisted sealing. Maintain pipeline cleanliness for optimal performance: Ensure optimal performance with our vertical installation guidelines, designed to accommodate gravity-assisted sealing while maintaining system cleanliness.
- Maintenance: Our valves are designed for simplified maintenance, ensuring continued peak performance through regular inspections and care.
- Periodically inspect springs and sealing surfaces to ensure continued excellence: Routine inspections of springs and sealing surfaces are essential to maintain the exemplary performance of our valves.
- Vigilantly monitor thermal fatigue in high-temperature systems for uncompromised integrity: Safeguard your high-temperature systems by diligently monitoring for thermal fatigue, ensuring the integrity and reliability of our valves.
Detailed Photos





Product Parameters
| Working pressure |
PN16~PN40 OR 150LB~300LB |
| Suitable medium |
Water, gas, air and some corrosive liquid |
| Investment |
Casting body and cap |
| Delivery time |
Usual 15 days |
| Shipping port |
NingBo,YiWu |
Certifications

Company Profile





FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.