Micro Resistance Slow Closing Check Valve, CJ/T 154, QT450
Key Specifications / Features
Discover our premium Micro Resistance Check Valve collection, designed for slow closing applications. Conforming to CJ/T 154 standards and crafted from QT450 materials, these valves are available in sizes ranging from DN50 to DN1000 (2" to 40") to suit your needs. Operating efficiently at pressures between PN10 and PN25 (150 to 300 psi), our valves ensure reliable performance. Featuring RF flanged ends, these valves are compatible with both DN400 and 16 Inch pipelines. Explore the top-notch selection of Class 150 LB valves with exceptional durability and precision.
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Detail Information
Valve description：
Micro Resistance Slow Closing Check Valve, FLANGED
Design: CJ/T 154.
Body: QT450
Nominal size: DN400.
Nominal class: PN10.
End Connection: RF flange.
Face to face: GB/T 17241.6
Test and inspection: GB/T 13927.
Product Range：
Body material: QT450, ASTM A351 CF8, ASTM A216 WCB.
Normal diameter: DN50 - DN1000
End connection: Flanged.
Pressure range: PN10-PN25
Working temperature: ≤80℃.
Technical parameters and characteristics
Micro Resistance Slow Closing Check Valve
The Slow Closing Check Valve is mainly used at the outlet of pressurized water pumps in industrial circulating water supply and drainage, urban water supply and drainage, high-rise buildings and hotels, to prevent water backflow and eliminate destructive water hammer to ensure the safe operation of the pipe network. In the design, the requirements of the use environment are fully considered to achieve no vibration, no noise, stable operation, ensure the quiet environment of hotels and residences, and have functions such as power saving. For the convenience of installation, there are two types of vertical installation and horizontal installation for selection.
Micro Resistance Slow Closing Check Valve, FLANGED
Design: CJ/T 154.
Body: QT450
Nominal size: DN400.
Nominal class: PN10.
End Connection: RF flange.
Face to face: GB/T 17241.6
Test and inspection: GB/T 13927.
Product Range：
Body material: QT450, ASTM A351 CF8, ASTM A216 WCB.
Normal diameter: DN50 - DN1000
End connection: Flanged.
Pressure range: PN10-PN25
Working temperature: ≤80℃.
Technical parameters and characteristics
| Product | Micro Resistance Slow Closing Check Valve |
| Nominal diameter | DN50 - DN1000. |
| Design pressure | PN10-PN25. |
| Design standard | CJ/154. |
| Face to face | GB/T17241.6. |
| Connection end | Flange. |
| Test standard | GB/T13927. |
| Application | Water, oil, etc. |
Micro Resistance Slow Closing Check Valve
The Slow Closing Check Valve is mainly used at the outlet of pressurized water pumps in industrial circulating water supply and drainage, urban water supply and drainage, high-rise buildings and hotels, to prevent water backflow and eliminate destructive water hammer to ensure the safe operation of the pipe network. In the design, the requirements of the use environment are fully considered to achieve no vibration, no noise, stable operation, ensure the quiet environment of hotels and residences, and have functions such as power saving. For the convenience of installation, there are two types of vertical installation and horizontal installation for selection.
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