Solenoid Valve 1/4" 1/8" 2 Way Normally Closed Direct-Acting Pneumatic Valves For Water Air Gas Hot DC 12V 24V 110V 220V

# Product Description of Normally Closed Solenoid Valve 

## 1. Coil Wiring Instructions 

- **Alternating Current (AC)**: No need to distinguish between positive and negative poles. 

- **Direct Current (DC)**: Must distinguish between positive and negative poles. Although the solenoid valve can work if connected in reverse, the indicator light will not turn on. Please pay attention to this during installation. 

## 2. Product Parameters

- Product Name: Normally Closed Solenoid Valve 

- Product Type: 2V Series 

- Operating Temperature: -5~70℃ 

- Working Mode: Internally Piloted 

- Product Power: 4.3W/5.5VA 

- Working Pressure: 0 - 8kgf/cm² 

- Working Medium: Gas (Please consult customer service for media other than air) 

- Maximum Pressure Resistance: 12kgf/cm² 

- Protection Class: IP55 

- Voltage Range: -10%~+10% 

- Insulation Class: Class F 

## 3. Core Advantages 

### (1) Sealing and Durability 

Adopts a fluororubber sealing ring, with a tight side leakage value as low as ≤0.4 rubber coefficient. It features low friction and wear resistance, and the measured service life under normal conditions exceeds 20 million times. Professional sealing design eliminates air leakage, making it suitable for high-frequency operation of the valve core. 

### (2) Structural Design 

Equipped with an aluminum alloy protective grounding post. During installation, the ground wire must be connected to conduct the static electricity/leakage of the shell to the ground, eliminating potential hazards from the source. 

### (3) Performance of Pilot Head 

The high-frequency pilot head is made of high-quality stainless steel, with high-frequency response, wear resistance, and corrosion resistance. It has a response frequency of 5 times per second and a response speed of 1ms, ensuring sensitive response without jamming. 

### (4) Service Life and Efficiency 

Has significant anti-aging properties, a longer service life, and effectively improves work efficiency.