auto stop valve
An automatic check valve is a valve that automatically closes the flow of fluid or gas according to preset conditions, designed to protect the system from abnormal conditions. It is commonly used in industrial, pipeline and liquid transportation systems to ensure operational safety and system stability.

- Valve body material: forged brass
- Valve stem material: brass
- Seal material: nitrile rubber (NBR)
- Working medium: cold/hot water
- Fluid temperature: 5~95C
- Pressure: 1.6MPa
- Ambient temperature: 0~65℃ Maximum relative humidity is non-condensing
- Travel time: 11~15 seconds
- Motor torque: >800gf.cm
Technical Parameters
| Ordering model | Product model | Valve type | Diameter | Connection | Kv value | Maximum closing pressure kPa |
Dimensions | |||
| L | W | H | ||||||||
| 12613 | DDF-K-H215.88*DFQ-HA1-220 | 2 port | 15.88 | welding | 3 | 80 | 79 | 21 | 25 | |
| 12614 | DDF-K-H222.2*DFQ-HA1-220 | 2 port | 22.2 | welding | 3 | 80 | 89 | 21 | 25 | |
| 12615 | DDF-K-H228.6*DFQ-HA1-220 | 2 port | 28.6 | welding | 3 | 80 | 92 | 21 | 25 | |
| Note: The above table is the commonly used recommended models, please consult for details. | ||||||||||
Features
Pressure Relief:
To protect the system from overpressure by shutting off when the pressure exceeds a set limit.
Flow Control:
To stop the flow when it exceeds or drops below a predefined level.
Temperature-Controlled:
To shut off when the temperature reaches a certain threshold.
FAQ
Q: What is the primary function of it?
A: The primary function of it is to control the flow of liquids, gases, or steam within a pipeline system. It uses an electric actuator to automatically open, close, or regulate the valve position based on signals from a control system, ensuring accurate flow control and system automation.
Q: What are the advantages of using it over manual valves?
A: Unlike manual valves, it offers several advantages, including:
Remote control: It can be operated remotely, reducing the need for manual intervention.
Quick installation: Its card sleeve connection method simplifies installation and maintenance without the need for special tools.
Automation: It integrates seamlessly with automated control systems, improving operational efficiency and reducing human error.
Q: In which industries is it commonly used?
A: it is widely used in industries such as water treatment, oil and gas, chemical processing, HVAC systems, and pharmaceutical manufacturing. Its ability to precisely control flow rates and integrate into automated systems makes it ideal for applications requiring high reliability and efficiency.
Q: How easy is it to maintain it?
A: it is designed for easy maintenance due to its card sleeve connection, which allows for quick assembly and disassembly. This feature makes it simpler to replace seals or perform other maintenance tasks, minimizing downtime and reducing overall maintenance costs.
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