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Butterfly type slightly-resisted slowly-closed silencing check valve is used in the water supply and drainage pressuring pump group and pipe network to eliminated water hammer and protect safety of both pump group and pipeline
Structure and principle
• Small volume, light weight, unique structure.
• Dual-disk opening structure, big flow, small flowing resistance, notable energy saving effect.
• Slowly-closed action can be made with the pistons on both sides of the body and the oil hydraulic system controlling the pistons, low noise.
• There is a needle valve in the oil pipeline of the slowly-closed system and it acts to adjust the oil quantity so as to get the slowly-closed time adjusted in a large range.
The sealing face is not subject to the fluid affection, wearable, well sealed and long durable. |
