Solenoid valve 1/2 inch WZB2 with coil, NO - normally open 149B12407

Brass solenoid valve 1/2 inch – reliable flow control

This solenoid valve is a compact and efficient solution for precise control of liquid flow in water, heating and cooling systems. Made of brass, it ensures durability and corrosion resistance. Designed to work with liquids up to 100°C and a working pressure of up to 16 bar. The valve is normally open (NO), meaning that in the rest state (without voltage) it allows the medium to flow. When AC voltage is applied, the valve closes, blocking the flow.

Construction and application

Two-way, two-position valve with a brass body. Inside there is a stem and spring made of stainless steel, which guarantees long-lasting and trouble-free operation. The EPDM membrane and pilot valve plate provide tightness and resistance to various media. The intended use of this valve covers a wide range of applications – from irrigation systems, through central heating installations, to industrial equipment requiring precise flow control. A minimum differential pressure of 16 bar ensures stable operation even in difficult conditions.

Key features and benefits

• Durable construction: The brass body and internal stainless steel components guarantee long life and corrosion resistance.
• High tightness: The EPDM gasket provides reliable sealing and minimizes the risk of leaks.
• Fast action: The electromagnetic coil with a power of 9W ensures quick opening and closing of the valve.
• Universal application: Suitable for water, glycol and other media non-aggressive to the construction materials.
• Easy installation: Internal threads facilitate connection to the installation.
• Safety: The coil protection class IP65 protects against dust and moisture.
• Kvs = 4: Determines the flow rate of the valve – the higher the value, the greater the flow at a given differential pressure.
• AC voltage: AC power supply is widely available in most electrical installations.

The nominal diameter is 1/2 inch (15 mm), and the housing is made of brass. The EPDM gasket ensures high tightness, and the maximum working pressure is 16 bar at a maximum operating temperature of 100°C. The Kvs value is 4, which affects the flow rate of the valve. The coil supply voltage is 230V AC / 50Hz with a power of 9W, and the coil protection class is IP65.

This solenoid valve is a solid choice for both professional installers and end users looking for a reliable solution to control flow in their installations. Thanks to its construction and technical parameters, it ensures efficient and safe operation for a long time.