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Normally Closed

Normally Closed Brass Solenoid Valves

Choose from our full line of Electric Normally Closed Solenoid Valves. These valves are closed in the standard position and powered to open. Offered in a variety of sizes as well as voltages. We have over 10,000 Normally closed valves in stock ready to ship today.

What is a Normally Closed (NC) Solenoid Valve?

A normally closed solenoid valve is a type of valve that remains closed when it is not energized, preventing flow. When an electrical current passes through the solenoid coil, it creates a magnetic field that lifts the internal plunger, opening the valve and allowing media to flow through.

Normally Closed vs. Normally Open Valves

The defining difference between normally closed and normally open solenoid valves is their default position when no power is supplied:

  • Normally Closed (NC) Valves: The valve remains closed, blocking flow until energized.
  • Normally Open (NO) Valves: The valve remains open, allowing flow until energized to close.

When to Use a NC Solenoid Valve

Normally closed solenoid valves are useful for applications where you want to:

  • Prevent Unwanted Flow: Perfect for safety shut-off in gas lines or water systems.
  • Control Flow Precisely: Start or stop flow on demand for applications like irrigation or machinery.
  • Conserve Energy: The valve only consumes power when open.

When to Use a Brass Solenoid Valve

Brass solenoid valves are a staple in industries like plumbing, chemical processing, and industrial manufacturing for the following features:

  • Corrosion Resistance: Suitable for water*, air, gas, fuel, and some oils.
  • Versatility: They can handle a range of pressures and temperatures.
  • Affordability: A cost-effective solution for many applications.

*For drinking water, stainless steel solenoid valves are recommended

Order Now

Need the normally closed brass solenoid valve fast? We have a large inventory in stock, most orders ship within 1 business day!

Still have questions? Our team of valve experts is available to assist you with product selection, sizing, and any technical questions you may have! Contact us during regular business hours by phone, email, or website chat. If you reach us after hours, leave a voicemail or email, and we'll respond promptly the next business day.

FAQ

Q: What is the standard voltage for your brass NC solenoid valves? 

  • A: Our normally closed brass solenoid valves are available in 12V DC, 24V DC, 24V AC, 110V AC, and 220V AC voltages to fit different power sources.

Q: Can solenoid valves be used with hot liquids/gases? 

  • A: Yes, our brass valves can handle hot water up to 250°F (120°C) when used within the rated pressure ranges.

Q: What are common uses for NC brass solenoid valves?

  • A: They are commonly used with water systems, irrigation, air compressors, HVAC, fuel lines, and more.

Q: What is the operating pressure range for your NC brass valves?

  • A: See individual product descriptions – we have a wide selection.