Industrial-grade Excellence Premium Stainless Steel/Carbon Steel Flange Vertical Check Valve
Product Description
Structure & Working Principle
Innovative Design Features:
Lift-type Design: The disc glides effortlessly along the vertical centerline within the valve body, making it exceptionally suitable for flawless vertical installations.
Spring-assisted Sealing: Expertly crafted for rapid and accurate responses to pressure variations, ensuring consistent reliability across all situations. Select variants boast reinforced springs, achieving peak performance even in horizontal pipelines.
Operation:
Closed by Default: The valve remains securely closed under no-flow conditions, providing unwavering protection to your system.
Efficient Forward Flow: The inlet pressure overcomes the spring force effortlessly, lifting the disc with grace to allow flow.
Prevention of Reverse Flow: A strategic combination of spring and backpressure decisively forces the disc to close, delivering a robust barrier against backflow.
Key Specifications
Pressure Rating: PN16~PN40 (150LB-300LB), precisely tailored to meet a diverse range of operational demands.
Temperature Range:
- Carbon Steel (WCB): Operates efficiently up to ≤425°C, versatile for water, oil, and steam.
- Stainless Steel (304/316): Functions optimally up to ≤200°C, ideal for handling corrosive media.
Materials & Standards
- Body Materials:
- Robust Carbon Steel (WCB) and resilient Stainless Steel (304/316)
Dimensions & Connection
- Nominal Diameter (DN): Spanning from DN15 to DN350, accommodating a wide range of applications.
- Connection Type: Flange (RF/FF), ensuring a definitive and secure fit.
Applications
- Media: Highly effective with water, steam, oils, weak acids such as nitric acid, and strong corrosives like acetic acid.
- Industries:
- Oil & Gas: Delivers precise unidirectional flow control.
- Pharmaceutical: Ensures rigorous protection against backflow contamination.
- Power Plants: Indispensable for safeguarding boiler feedwater.
- Wastewater Treatment: Perfect for pump discharge lines, enhancing operational efficiency.
Installation & Maintenance
- Installation: Vertical mounting is crucial for gravity-assisted sealing. Keep pipelines immaculate for peak performance.
- Maintenance:
- Conduct regular inspections of springs and sealing surfaces to maintain exceptional performance.
- Vigilantly monitor thermal fatigue in high-temperature systems to ensure uncompromised integrity.
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.
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