Industrial-grade Excellence: Experience the pinnacle of reliability and durability with our expertly engineered products, crafted for superior performance in demanding environments. Premium Stainless Steel/Carbon Steel Flange: This high-quality flange offers exceptional strength and endurance, designed to meet the toughest industrial standards. Vertical Check Valve: Our advanced valve solutions ensure seamless fluid control, maintaining efficiency and safety in every application.
Product Description
Structure & Working Principle: Unveil the sophistication of our design, where engineering meets simplicity to offer unparalleled operational ease.
Innovative Design Features: Our check valves are a testament to cutting-edge engineering, setting benchmarks for performance and reliability.
Lift-type Design: With a disc that elegantly travels vertically, it's the ideal choice for installations requiring impeccable vertical precision.
Spring-assisted Sealing: Our system is meticulously engineered for quick adaptation to pressure shifts, promising utmost reliability. Enhanced spring options are available for horizontal use cases.
Operation: Mastery in motion control, our valves exemplify precision in every operational phase.
Closed by Default: A robust safeguard, designed to remain securely sealed when inactive, protecting your entire system infrastructure.
Efficient Forward Flow: The seamless operation ensures that once the pressure is applied, the disc lifts effortlessly, allowing a smooth flow through the system.
Prevention of Reverse Flow: A combination of strategic spring tension and backpressure ensures the disc closes effectively, preventing any backward fluid movement.
Key Specifications: Engineered to meet the diverse needs of dynamic operational environments, our specifications are a testament to versatility and capability.
Pressure Rating: PN16~PN40 (150LB-300LB), designed to accommodate a myriad of pressure demands with precision and reliability.
Temperature Range: Meticulously designed to withstand varied temperature conditions, ensuring optimal performance.
- Carbon Steel (WCB): Efficient in temperatures up to ≤425°C, making it perfect for water, oil, and steam applications.
- Stainless Steel (304/316): Optimally suited for conditions up to ≤200°C, ideal for handling corrosive substances.
Materials & Standards: Only the finest materials are selected to meet stringent international standards, ensuring unmatched durability and longevity.
- Body Materials:
- Durable Carbon Steel (WCB) and resilient Stainless Steel (304/316): Each material is chosen for its specific advantages in performance and resilience.
Dimensions & Connection: Adaptable to a wide range of systems, our valves are engineered for perfect integration.
- Nominal Diameter (DN): With a range spanning DN15 to DN350, our offerings are versatile, meeting a broad spectrum of application requirements.
- Connection Type: Flange (RF/FF): Provides a robust and secure connection, ensuring stability and reliability.
Applications: Tailored solutions that seamlessly integrate into your operations, enhancing functional efficiency.
- Media: Versatile across various media, including water, steam, oils, and strong corrosives like acetic acid.
- Industries: Our products are essential components across multiple industries, providing indispensable value.
- Oil & Gas: Ensures precise control over fluid direction, vital for operational safety and efficiency.
- Pharmaceutical: Offers robust protection against contamination, a critical requirement in sensitive environments.
- Power Plants: Plays a crucial role in safeguarding boiler feedwater systems, enhancing overall plant safety.
- Wastewater Treatment: Perfectly suited for pump discharge lines, boosting operational performance and reliability.
Installation & Maintenance: Simple yet effective guidelines ensure your system remains in peak condition.
- Installation: Vertical mounting guarantees optimal performance, aided by gravity-assisted sealing. Cleanliness is key for flawless operation.
- Maintenance: Routine checks and maintenance ensure long-lasting excellence and uninterrupted efficiency.
- Periodically inspect springs and sealing surfaces to ensure continued excellence in performance.
- Vigilantly monitor thermal fatigue in high-temperature systems to preserve integrity and safety.
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.