Unox Stainless Steel General Purpose Normally Open Solenoid Valve (0.5–16 BAR)

What is a Stainless Steel General Purpose Solenoid Valve?

A stainless steel general purpose solenoid valve is a mechanical device that operates under the influence of a magnetic field generated around a coil when electric current passes through it. It is commonly used to control the flow of liquids or gases such as water, air, oil, or gas. These valves can be connected to a control system, such as a pilot valve, push button, or other control device, to open or close them. Solenoid valves are widely used due to their compact size and ease of control.

Applications of Stainless Steel General Purpose Solenoid Valves

Stainless steel general purpose solenoid valves are electromagnetic devices used to regulate the flow of liquids and gases. They are commonly applied in automotive systems, household appliances, industrial machinery, and various systems. For example, they can be used in fertilizer injection systems in car engines or in cooling systems of refrigerators and other appliances. Additionally, they are used in industrial processes or facilities to control liquid and gas flow.

Solenoid valves are manufactured in two types:

• Normally Closed (NC): The valve opens when the coil is energized.

• Normally Open (NO): The valve closes when the coil is energized.

Normally Open Operation

A normally open solenoid valve initially allows fluid to pass through. When electric current is applied to the coil, the plunger moves downward, closing the orifice. As a result, the internal pressure gradually increases, pushing the diaphragm downward and sealing the orifice. The pressure distributes evenly over the diaphragm, preventing it from lifting, thus closing the valve. This process occurs very quickly, and the valve is designed for optimal efficiency.

General Specifications

• Seal: NBR

• Sleeve: Stainless Steel

• Body: AISI 316 Stainless Steel

• Plunger: Stainless Steel

• Temperature Range: -10 °C to +90 °C

• Coil: Socketed

Recommendations

• Mount the solenoid coil facing upward.

• Use filters such as strainers upstream of the solenoid valve.

• For high-temperature applications, request high-temperature diaphragm and seal materials when ordering.

Selection Guidelines

• Ensure the coil is suitable for the operating voltage (AC/DC) and properly protected for the installation environment.

• Consider the minimum and maximum pressures in the system when selecting a valve.

• The type and temperature of the fluid directly affect valve selection.

• Make sure the flow direction matches the arrow on the valve body.

• Solenoid valves do not act as check valves; in cases of reverse pressure, fluid can flow backward. In such cases, a check valve should be installed downstream.

• The pipeline where the valve is installed must be free from debris.