Industrial-grade Excellence Premium Stainless Steel/Carbon Steel Flange Vertical Check Valve
Product Description
Structure & Working Principle
Innovative Design Features:
Lift-type Design: Our valve disc elegantly glides along the vertical centerline, ensuring perfect harmony with vertical installations, providing top-tier performance.
Spring-assisted Sealing: Meticulously engineered to react with lightning precision to pressure variations, our valves promise unwavering reliability. Certain models are equipped with enhanced springs for supreme efficiency in horizontal pipeline configurations.
Operation:
Closed by Default: In the absence of flow, the valve steadfastly remains shut, offering robust protection for your system.
Efficient Forward Flow: As the inlet pressure triumphs over the spring force, the disc rises effortlessly, ensuring smooth and unrestricted flow.
Prevention of Reverse Flow: A synergistic blend of spring dynamics and backpressure ensures the disc's rapid closure, fortifying your system against reverse flow.
Key Specifications
Pressure Rating: PN16~PN40 (150LB-300LB), precisely crafted to meet diverse operational demands.
Temperature Range:
- Carbon Steel (WCB): Demonstrates superior performance at temperatures up to ≤425°C, adeptly handling water, oil, and steam.
- Stainless Steel (304/316): Excels in environments up to ≤200°C, making it ideal for corrosive media scenarios.
Materials & Standards
- Body Materials:
- Robust Carbon Steel (WCB) and enduring Stainless Steel (304/316)
Dimensions & Connection
- Nominal Diameter (DN): Available from DN15 to DN350, tailored for a multitude of applications.
- Connection Type: Flange (RF/FF), ensuring a flawless and secure connection.
Applications
- Media: Efficiently manages water, steam, oils, weak acids such as nitric acid, and resilient against potent corrosives like acetic acid.
- Industries:
- Oil & Gas: Offers precise and reliable unidirectional flow control, crucial for industry standards.
- Pharmaceutical: Vital for safeguarding against backflow contamination, ensuring sterile conditions.
- Power Plants: Indispensable for guarding boiler feedwater systems.
- Wastewater Treatment: Perfectly suited for pump discharge lines, streamlining operational efficiency.
Installation & Maintenance
- Installation: Vertical installation is crucial for the valve's gravity-assisted sealing capabilities. Clean pipelines are vital for unmatched performance.
- Maintenance:
- Routine inspection of springs and sealing surfaces is essential to maintain excellence.
- Diligently monitor for thermal fatigue in high-temperature environments to preserve 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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