1. Pressure tested according to ISO5208 standard
2. Material: Brass (CW617N)
3. Disc: Brass disc with silicon rubber seals or ABS disc with NBR seals
4. Size: 1/2'' - 2''
5. Thread standards: ISO7/1, ISO228, NPT, DIN2999
6. Packaging: Each valve is packed in a polybag, then placed in an inner box, and finally shipped in cartons on wooden pallets.
7. Suitable for water, non-corrosive liquids (excluding oil), and saturated steam.
8. Designed for pressure up to 1.6 MPa and tested at 2.0 MPa.
9. Operating temperature range: -20°C to 150°C.
Technical Specification:
| Working Pressure | 1.6 Mpa |
| Tested Pressure | 2.0 Mpa |
| Working Medium | Water, non-corrosive liquid (not including oil), and saturated steam |
| Operating Temperature | -20°C ≤ T ≤ 150°C |
Function:
A check valve is an automatic device that prevents backflow of the media, protecting pumps and motors from reverse rotation. It also helps in discharging media from containers. In addition, it can be used in pipelines where the pressure might rise above the system's maximum limit, acting as an auxiliary safety measure.
Classification:
Check valves are categorized based on their structure and installation method. Here are two common types:
1. Swing Check Valve: This type uses a disc that swings around the seat axis. It has lower flow resistance compared to lift check valves, making it suitable for low-flow applications and large-diameter pipes. However, it’s not recommended for pulsating flows due to less effective sealing. Swing check valves can be single-disc, double-disc, or multi-disc, depending on the valve size and application needs.
2. Lift Check Valve: The disc moves vertically within the body. These valves are typically installed in horizontal pipelines and are commonly used in high-pressure, small-diameter systems. The disc may be a ball or a flat disc, guided by a sleeve to ensure smooth movement. Lift check valves resemble globe valves in design but have higher flow resistance. They are ideal for preventing backflow in critical applications.
Check valves are essential components in piping systems, ensuring one-way flow of media and preventing unwanted backflow. They are also known as non-return valves, one-way valves, or reflux valves.
We welcome any inquiries you may have. Feel free to reach out anytime. Thank you for considering our product!
Glow Warning Tape,Reflective Tape,Outdoor Safety Tape,Reflective Hazard Tape Car Signs
Dongguan Guanhong Packing Industry Co., Ltd. , https://www.tapegh.com