ZS Brass Normally Open Series Solenoid Valve
Model：ZS-15
Category：ZS Series
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
| 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 & 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