The ZS brass normally open series solenoid valve is a normally open (close on energization) solenoid valve. When de-energized, the valve is in the open state; when energized, it closes. Common port sizes are 1/8, 1/4, 3/8, 1/2 inch, working pressure 0-1.0MPa, suitable for various media including water, air, oil, and gas. The valve body adopts forged brass or stainless steel, seals adopt NBR or food-grade silicone, and coil insulation class is typically Class B.
Technical Parameters
Parameter
Value
Bore
1/8, 1/4, 3/8, 1/2 inch
Working Pressure
0-1.0 MPa
Working Temperature
-5C to 80C
Valve Body Material
Forged brass, stainless steel
Seal Material
NBR, food-grade silicone
Power Supply
AC220V, DC24V, DC12V
Coil Insulation Class
Class B
Action Mode
Normally open (close on energization)
Applicable Medium
Water, air, oil, gas (explosion-proof type required)
Product Features
Normally open design: valve opens when de-energized, suitable for applications requiring normally-pass safety conditions
Multiple port sizes available: 1/8 to 1/2 inch, meeting different flow requirements
Material options: brass or stainless steel valve body
Seal options: NBR or food-grade silicone, meeting food-grade requirements
Multiple voltage options: AC220V, DC24V, DC12V
Explosion-proof coil optional for gas applications
Selection and Installation Guide
Normally open (close on energization) rather than normally closed - always confirm action mode during selection
Select port size based on flow CV value and pipeline dimensions
If medium contains impurities, a filter of at least 80 mesh must be installed
Install with valve body arrow aligned with fluid flow direction, coil vertically upward to avoid liquid accumulation
For gas applications, explosion-proof coil must be selected and comply with local explosion-proof standards
Keep voltage fluctuation within +/-10% to avoid coil burnout