Your Professional Solenoid Valve Manufacturer!
SND TECH is a professional manufacturer specializing in manhole covers, gratings, water meter boxes, pipe fittings, valves, and metal casting products with nearly 20 years of experience. The company integrates casting, machining, surface treatment, and assembly, offering comprehensive OEM solutions with an annual production capacity of 20,000 tons. With advanced manufacturing capabilities and strict quality control, SND TECH provides reliable products and customized services for global infrastructure and industrial projects.
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![Normally Open Solenoid Valve]()
Normally Open Solenoid ValveThis is a normally open (NO) flange solenoid valve made of 304 stainless steel, which is corrosion-resistant and suitable for various media. Normally open (NO) – the valve remains open when there is -
![Normally Closed Solenoid Valve]()
Normally Closed Solenoid ValveThis is a stainless steel flange-type normally closed (NC) solenoid valve. The body is made of stainless steel (corrosion resistant), and it uses a flange connection (suitable for industrial
Why Choose Us
OEM & Custom Solutions
We will formulate exclusive product solutions combined with production capabilities, and provide design drawings for confirmation to ensure customized products meet project requirements.
Extensive Industry Experience
With nearly 20 years of expertise in metal casting and municipal products, we ensure consistent quality and reliable performance.
High Quality
SND has fully passed the ISO9001 quality management system certification and CE. During the production process, it implements a number of strict detailed standards and conducts full-process quality control.
Advanced Equipment
Our company has well-equipped chemical laboratories and physical performance laboratories. A complete set of testing equipment such as Direct Reading Spectrometer, Metallographic Microscope, Hardness Tester, Universal Material Testing Machine and Pressure test machine can be used to effectively control chemical composition and ensure mechanical performance.
Advantages of Solenoid Valve
Energy Efficiency
They consume minimal energy, making them cost-effective.
Remote Operation
They can be controlled from a distance, enhancing safety and convenience.
Cost-Effective Maintenance
They are easy to maintain and service.
Versatile Voltage Compatibility
They can operate with both AC and DC power sources.
Rapid Response
They open and close very quickly.
Temperature Resilience
They perform well under extreme temperature conditions.
Safety
They prevent external leakage, increasing safety.
Flexible Installation
They can operate in both vertical and horizontal positions.
Broad Applicability
Their versatility makes them suitable for a wide range of applications.
Automotive Industry: Solenoid valves control fuel injection, transmission fluid flow, and even manage exhaust emissions.
HVAC Systems: Solenoid valves help control the flow of refrigerants in air conditioning systems and manage the supply of hot or cold water in heating systems.
Manufacturing and Automation: In industrial automation, solenoid valves regulate the flow of hydraulic or pneumatic fluid in robotic arms, conveyors, and other machinery.
Water Treatment and Irrigation: Solenoid valves are used to automate water supply systems for irrigation, ensuring efficient water usage.
Medical Devices: Medical equipment like oxygen therapy devices and anesthesia machines use solenoid valves to control gas flow.
Product Parameters
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Valve body material |
SS304 |
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Applicable media |
Oil,Gas,Water |
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Connection |
Flange |
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Power |
Electric/Pneumatic |
|
Applicable temperature |
Normal temperature |
|
Sealing Material |
PTFE, FKM, NBR, etc. |
|
Warranty period |
12 months |
|
Support customization |
OEM,OBM,ODM |
Direct-acting valves: These valves open and close instantly when energized. They do not require minimum pressure and are suitable for low-pressure systems or applications needing rapid response.
Pilot-operated valves: These use system pressure to assist operation, enabling them to handle high-flow and high-pressure applications efficiently. They require a minimum pressure to function properly.
Two-way, three-way, and four-way valves
The number of ports determines the flow direction and functionality. Two-way valves control simple on/off flow, three-way valves alternate between two paths, and four-way valves handle double-acting actuators.
Normally closed vs. normally open
NC valves remain closed when unpowered and open when energized, whereas NO valves function in the opposite way. The choice depends on fail-safe requirements.
Specialty solenoid valves
These include high-pressure, cryogenic, corrosion-resistant, explosion-proof, and proportional control valves designed for specific industrial needs.
Components of Solenoid Valve
Coil: The coil is commonly made from insulated copper wire. When a current is applied to the coil, an electromagnetic field forms around the cross-section.
Electrical Connection: The coil is connected to an interface with an electrical drive circuit and power source. Each coil typically has two connections: one to the power source and one to ground.
Bobbin: The coil wire is commonly wrapped around a structural piece called a bobbin. The bobbin helps to hold the wire in the desired position to create a specific magnetic field.
Coil Cover/Shielding: A cover is placed around the solenoid coil for protection. The cover may be constructed from a material that will provide shielding. Shielding protects the solenoid coil from interference from external electrical noise and protects the surrounding equipment from interference caused by electromagnetic radiation from the solenoid coil.
Plunger/Armature: A ferromagnetic plunger (sometimes referred to as an armature) is placed in the center of the coil or bobbin to convert electrical energy into mechanical work. The magnetic field created from the energized coil will attract or repel the plunger coaxially.
Valve Body: At a minimum, the valve body includes the valve seat and fluidic ports. In more complex valve designs, the valve body may also house additional sub-components to optimize valve performance.
Valve Seal: The position and movement of the plunger controls the components of the valve body to seal or open flow paths.
Spring: A spring is commonly used within the valve body to bias the plunger and other movable valve components into position when de-energized. Some designs incorporate multiple springs.
Plunger Stop: A plunger stop is often employed to control the length of plunger movement, or stroke, when energized.
PE Packaging: Using PE film to completely wrap palletized goods. Its purpose is to waterproof, dustproof, and secure the goods.
Case Packaging: Box-type packaging, where small/precision products are packed into custom-made cases and stacked together. Suitable for protecting fragile parts.
Container: Container shipping is the most commonly used transport medium in international logistics.
Our company guarantees that the goods will be safely delivered to the customer.
FAQ
We're well-known as one of the leading solenoid valve manufacturers and suppliers in China, also supports customized service. Please feel free to buy discount solenoid valve from our factory. For price consultation, contact us.
Stainless Steel Solenoid Valve, Normally Open Solenoid Valve, electric actuator valve
