Hered Pneumatic Check Valve CV Series
Hered Pneumatic Co., LTD.’s CV Pneumatic Check Valve is a high-performance one-way valve designed for optimal flow control in fluid and gas applications. Featuring high flow rates, zero leakage, and low pressure drop, the CV series is engineered to excel in diverse industrial environments. The fully guided lift valve with a free-floating O-ring demonstrates excellent tolerance to particulate contamination, while metal-to-metal stoppers in both open and inspection positions prevent O-ring and spring fatigue.
Key Features
- High flow rates with zero leakage and low pressure drop
- Nominal pressure range: 0.15, 1, 3 & 8 Psig (0.01, 0.07, 0.21 & 0.55 bar)
- Zero leakage from zero to maximum working pressure
- Wide temperature rating: -320°F to 450°F (-195°C to 232°C)
- Maximum operating pressure to 300°F (149°C)
- Available port sizes: G1/8, G1/4, G3/8, G1/2
- Durable copper body with NBR sealing elements
- Suitable for low-temperature system applications with proper sealing materials
Specifications
| Parameter | CV-01 | CV-02 | CV-03 | CV-04 |
|---|---|---|---|---|
| Working Medium | Compressed Air | |||
| Port Size | G1/8 | G1/4 | G3/8 | G1/2 |
| Max. Operating Pressure | 1.0MPa | |||
| Proof Pressure | 1.5MPa | |||
| Operating temp. range | 0~70℃ | |||
| Body Material | Copper | |||
| Sealing element | NBR | |||
Dimensions
| Model | A | B | ΦC |
|---|---|---|---|
| CV-01 | 42 | 14 | G1/8 |
| CV-02 | 50 | 17 | G1/4 |
| CV-03 | 50 | 21 | G3/8 |
| CV-04 | 63 | 27 | G1/2 |
Applications
- Pneumatic control systems
- Compressed air applications
- Low-temperature systems (with appropriate sealing materials)
- Industrial automation equipment
- Manufacturing and assembly lines
- Any fluid or gas system requiring precise flow control and backflow prevention
Working Principle
The CV valve functions as a one-way check valve with a fully guided lift mechanism. When pressure is applied to the inlet, the valve opens, allowing flow through. Upon pressure removal or reversal, the valve closes, preventing backflow. The free-floating O-ring design, coupled with metal-to-metal stoppers, ensures reliable operation even in the presence of particulate contamination.
Benefits
- Ensures precise unidirectional flow control in pneumatic and fluid systems
- Zero leakage performance enhances system efficiency and reliability
- Wide temperature range allows for use in diverse environmental conditions, including low-temperature applications
- Multiple port sizes available to fit different system requirements
- Robust copper construction with NBR sealing ensures long-term durability in industrial environments
- Compact and simple design facilitates easy installation and maintenance
- High tolerance to particulate contamination improves reliability in challenging conditions
Hered Pneumatic Co., LTD.’s CV Series Check Valves offer reliable, efficient unidirectional flow control for various industrial applications. Their durable construction and high performance meet the demands of modern pneumatic and fluid systems.
For detailed specifications, catalogs, or customized solutions, contact our technical support team. Our engineers are ready to help you select the optimal components for your specific needs.
