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HH46X / HDH48X Micro-resistance Slow-closing Butterfly Check Valve
HH46X / HDH48X Micro-resistance Slow-closing Butterfly Check Valve Structure
Scope of application
HH46X / HDH48X micro-resistance slow-closing butterfly check valve can be used on the drainage pipes of water, sewage, seawater and other media. It can prevent the backflow of the medium and can effectively limit the destructive water hammer to ensure the safety of the pipeline. It has the characteristics of novel structure, small size, light weight, small fluid resistance, reliable sealing, stable opening and closing, wear resistance, long service life, oil pressure, slow closing not affected by media, and good energy saving effects. Adopting double-lobed butterfly structure design, the unique dual hydraulic slow-closing mechanism guarantees the reliability of slow-closing, and the rubber soft-seal valve seat guarantees excellent sealing performance, which can prevent the medium from flowing back and eliminate destructive water hammer, and can effectively reduce The water hammer pressure at which the valve is closed can ensure the safe operation of the pipe network.
- Small size, light weight and structural length is only about one third of the swing check valve.
- The slow-closing system has excellent performance and is not affected by the medium in the pipeline. The valve flap is closed first and then closed slowly to prevent destructive water hammer.
- Soft rubber seal, good sealing performance, wear resistance and long service life.
- Rubber buffer, smooth opening and closing, no vibration, no noise.
- It has smaller flow resistance than the old check valve and has obvious energy saving effect.
|Part Name||Valve body||Disc||Stem, cylinder, piston||spring||Valve seat|
|material||Cast iron, cast steel||Carbon steel aluminum bronze||stainless steel||stainless steel||Nitrile rubber|
|model|| Nominal pressure |
|Strength test pressure|| Sealing pressure |
| proper temperature |
|Applicable medium||Slow closing time|
| HH46X |
|1.0||1.5||1.1||≤80||Clean water sewage sea water||≤60 seconds|
| Nominal pressure |
| Nominal diameter |
| 1.0 |