Cast iron normally open solenoid valves Wholesale

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Yuyao Shenzhou Solenoid Valve Co., Ltd. is China Cast iron normally open solenoid valve Factory and OEM/ODM Cast iron normally open solenoid valve company that specializes in the design and manufacture of solenoid valve. The company boasts sophisticated mechanical equipments, advanced manufacturing technique, perfect testing methods. Besides, strong technical background and stable product quality makes it possible for the company to obtain the ISO9001 : 2008 international quality certificate. We can design and manufacture products of special specifications, offer technical consultation as well as pre-sale and after-sale service for our customers.
By adhering to the philosophy of quality first and relying on technological advantage and a more and more rational production procedure, the company has developed more than 20 series of products of around 3,000 specifications and has been carrying out large scale productions on the 2W and DF type liquid solenoid valve, ZQDF and ZCZ type steam solenoid valve as well as the ZCT and various types of all stainless steel anticorrosive solenoid valves. Our products have been widely used in such industries as chemical engineering, petroleum, metallurgy, textile, food, medical treatment, environmental protection and shipbuilding and have won general approval from users in terms of technology, performance, appearance and quality.

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Industry knowledge about this item

Solenoid valves are essential components in various industrial applications, providing automatic control of fluids and gases. Among the different types of solenoid valves available in the market, cast iron normally open solenoid valves stand out as robust and reliable solutions that are suitable for a wide range of applications.

Features and Benefits

Cast iron normally open solenoid valves, as their name suggests, are designed to remain open when there is no electrical signal applied to the solenoid coil. This means that fluid or gas can flow freely through the valve until the coil is energized, causing the valve to close.
One of the main advantages of normally open solenoid valves is their fail-safe operation. If power is lost or the coil fails, the valve will automatically open, preventing system downtime or damage. Additionally, normally open solenoid valves offer fast response times and precise control, making them ideal for applications that require rapid switching or precise flow control.
Cast iron is a popular material choice for solenoid valves due to its high strength and resistance to wear corrosion, and extreme temperatures. Cast iron normally open solenoid valves are particularly suitable for applications in harsh environments or those involving abrasive or corrosive fluids. Moreover, cast iron normally open solenoid valves are available in a wide range of sizes, pressure ratings, and connection types, making them adaptable to different system requirements.


Cast iron normally open solenoid valves are widely used in various industries, including oil and gas, water treatment, food and beverage, and chemical processing. Some of the common applications of normally open solenoid valves include:
Fluid and gas control: Normally open solenoid valves are used to control the flow of fluids and gases in pipelines, tanks, and other systems. They can be used to shut off or regulate the flow of liquids, gases, or steam, depending on the application.
Pressure relief: Normally open solenoid valves can be used to relieve excess pressure in a system by diverting the fluid or gas flow to a secondary line or venting it to the atmosphere.
Emergency shutdown: Normally open solenoid valves can be used as part of an emergency shutdown system to quickly shut off the flow of hazardous fluids or gases in case of a safety breach.

Installation and Maintenance

Proper installation and maintenance are essential for ensuring the optimal performance and longevity of cast iron normally open solenoid valves. Here are some best practices for installation and maintenance:
Installation: Normally open solenoid valves should be installed in a position that allows for easy access and maintenance. The valve should be oriented in the correct direction of flow, and the pressure and temperature ratings should be checked to ensure compatibility with the system.
Wiring: The solenoid valve should be wired correctly according to the manufacturer's instructions. It is recommended to use high-quality wire and connectors to ensure a reliable electrical connection.
Testing: Before putting the valve into service, it should be tested to ensure proper operation. This includes checking for leaks, verifying the pressure and flow rates, and confirming that the valve opens and closes as expected.
Maintenance: Regular maintenance is essential for preventing valve failure and ensuring long-term reliability. The valve should be inspected periodically for signs of wear or damage, such as corrosion, leaks, or sticking. The coil should also be tested periodically to ensure that it is functioning correctly.