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  • SIAN--Gas Flow Control Expert

    Ningbo Fuhua Valve Co., Ltd.  -------
    With more than 30 years’ experience in valve production and R&D, SIAN Valve focuses on LPG cylinder valves, industrial gas cylinder valves, CNG valves, medical gas valves, fire extinguisher valves,  etc., a total of more than 300 varieties of valves and related accessories.
    With an annual production of 20 million sets of valves, we are one of the leading valve brands in the world.
  • R&D Center
    R&D CENTER
    We have set up branches and R&D centers in the United States and Europe. 
    We provide our products and services to the top 6 Gas companies in the world.
  • service
    SERVICE
    Customized OEM products are available; Prompt delivery time: 20-25 days after receipt of advance payment; Patient explanation before order and timely after-sale service. 
MAIN PRODUCTS

SIAN Valve focuses on LPG cylinder valves, industrial gas cylinder valves, CNG valves, medical gas valves, fire extinguisher valves,  etc.
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PRESSURE VALVES
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If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!
NEWS CENTER
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Industry News
Maximizing Safety and Efficiency with SIAN's Advanced LPG OPD Valve
02/06/2023

If you're using LPG cylinders, you know how important it is to prioritize safety and efficiency. That's why the LPG OPD Valve is a must-have for any LPG distribution system. The LPG OPD Valve is a safety device that prevents overfilling of LPG cylinders, protecting against accidents and leaks caused

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What is a diaphragm gas valve?
20/08/2025

Diaphragm gas valves are essential components in various gas-operated appliances, including water heaters, gas meters, and gas cookers. These valves play a crucial role in regulating the flow of gas, ensuring safe and efficient operation. In this article, we will explore the definition, working prin

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How should the valve on a high pressure oxygen cylinder be opened?
21/08/2025

In the medical field, oxygen is essential for patients who have difficulty breathing. Oxygen is stored in high-pressure cylinders, and the valve on these cylinders must be opened carefully to ensure the safety of both the patient and the medical staff. This article will provide a step-by-step guide

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How does an LPG Excess Flow Valve work?
22/08/2025

LPG is a flammable gas that is used for a variety of purposes, such as cooking, heating, and powering vehicles. To ensure the safe and efficient use of LPG, it is important to use the right equipment and follow proper safety procedures. One important piece of equipment that is used in LPG systems is

SiAN committed to fluid control, creating a safe and livable enviroment for humans.

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CONTACT INFO

 +86 571 8768 0216
Factory Website: 
 19/F, Minghao Building, 1688 Binsheng Road, Binjiang District, Hangzhou, Zhejiang, China (Zip Code: 310052)
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