Industrial-grade Excellence: Elevate your system's performance with our superior, robust solutions crafted for the toughest industrial challenges. Premium Stainless Steel/Carbon Steel Flange: Expertly designed for unwavering durability and unmatched strength, offering a seamless fit for your industrial needs. Vertical Check Valve: Delivering unparalleled vertical fluid control, our check valve ensures flawless operation in the most demanding settings.
Product Description
Structure & Working Principle: Dive into the advanced mechanics of our valve, designed with precision for optimal flow control and system protection.
Innovative Design Features: Experience cutting-edge technology with our valve's unique attributes, ensuring exceptional performance and longevity.
Lift-type Design: The disc moves gracefully along the vertical centerline within the valve body, perfect for seamless vertical installations, ensuring ease and precision in every application.
Spring-assisted Sealing: Engineered for swift and precise response to pressure changes, ensuring reliability in every scenario. Select models feature reinforced springs for optimal performance in horizontal pipelines, elevating functionality.
Operation: Master the art of flow regulation with our valve's intuitive operation, designed for maximum efficiency and system safety.
Closed by Default: The valve remains securely shut under no-flow conditions, safeguarding your system with unparalleled reliability and peace of mind.
Efficient Forward Flow: The inlet pressure effortlessly overcomes the spring force, gracefully lifting the disc to permit flow, ensuring smooth and uninterrupted operations.
Prevention of Reverse Flow: The combination of spring and backpressure effectively forces the disc to close, providing a robust defense against backflow, safeguarding system integrity.
Key Specifications: Tailored to suit a wide range of operational needs, our specifications ensure versatile and reliable performance.
Pressure Rating: PN16~PN40 (150LB-300LB), tailored for diverse operational needs, ensuring compatibility and superior performance in various conditions.
Temperature Range: Designed to withstand and perform efficiently across a broad spectrum of temperatures, ensuring reliability in any environment.
- Carbon Steel (WCB): Performs efficiently up to ≤425°C, accommodating water, oil, and steam with remarkable durability.
- Stainless Steel (304/316): Functions optimally up to ≤200°C, perfect for corrosive media, providing strength and longevity.
Materials & Standards: Crafted from top-quality materials, adhering to the highest standards for exceptional durability and reliability.
- Body Materials: Premium selection of materials ensuring unmatched durability and performance.
- Durable Carbon Steel (WCB) and resilient Stainless Steel (304/316): Engineered for excellence in varied applications.
Dimensions & Connection: Designed for versatility, our valves offer a range of dimensions and secure connections for diverse applications.
- Nominal Diameter (DN): Ranges from DN15 to DN350, catering to various applications with precision.
- Connection Type: Flange (RF/FF), ensuring a secure fit that guarantees stability and reliability in operation.
Applications: Our valves excel in a multitude of environments, providing reliable performance across various media and industries.
- Media: Efficient with water, steam, oils, as well as weak acids like nitric acid, and strong corrosives such as acetic acid, for comprehensive compatibility.
- Industries: Serving a diverse range of sectors, providing indispensable flow control and protection.
- Oil & Gas: Provides precise unidirectional flow control, essential for maintaining system integrity and performance.
- Pharmaceutical: Ensures protection against backflow contamination, safeguarding product purity and safety.
- Power Plants: Essential for boiler feedwater protection, guaranteeing operational stability and efficiency.
- Wastewater Treatment: Ideal for pump discharge lines, enhancing operational efficiency and reliability.
Installation & Maintenance: Ensuring longevity and optimal performance with expert installation and maintenance practices.
- Installation: Vertical mounting is essential for gravity-assisted sealing. Maintain pipeline cleanliness for optimal performance, ensuring seamless integration.
- Maintenance: Keep your systems running smoothly with our proactive maintenance guidance.
- Periodically inspect springs and sealing surfaces to ensure continued excellence, keeping your system in peak condition.
- Vigilantly monitor thermal fatigue in high-temperature systems for uncompromised integrity, ensuring lasting performance.
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.