400Xflow control valve

400X流量控制阀概述
400X流量控制阀是一种采用高精度先导式控制流量的多功能阀门，主要用于配水管路中，通过调节流量和压力保持系统稳定运行。其核心功能包括：The 400X flow control valve is a multifunctional valve that uses high-precision pilot controlled flow. It is mainly used in water distribution pipelines to maintain stable system operation by adjusting flow and pressure. Its core functions include:
Constant flow rate: Limit the flow rate to the set value, so that even if the upstream pressure fluctuates, the downstream flow rate remains unchanged.
Pressure regulation: Automatically reduce upstream high pressure to avoid downstream equipment overload.
Emergency truncation: In abnormal situations, the flow can be completely shut down to prevent losses.
Technical parameters and structure
Diameter range: DN20~DN450 (some models support DN500).
Pressure rating: PN10~PN25 (1.0~2.5MPa), higher pressure can be customized for special working conditions.
Material: The valve body is made of cast steel or stainless steel (304/316L), suitable for clean water, sewage, and corrosive media.
Control mode: Hydraulic drive, no need for external power supply, response time ≤ 3 seconds.
Connection form: Flange connection (mainstream), some models support threading or welding.
Product Features
Efficient and energy-saving: By optimizing the throttling process through the pilot valve, energy loss is reduced (saving more than 30% energy compared to traditional throttling valves).
High sensitivity: precise control of the pilot valve, flow regulation error ≤ 5%.
Long lifespan: Soft seal design (PTFE/rubber) ensures sealing performance, with an average trouble free operating time of ≥ 10 years.
Application field
Municipal water supply: zoning water supply for high-rise buildings and stabilizing fire protection systems.
Industrial systems: Circulating water control in the chemical, metallurgical, and food industries.
Environmental engineering: Flow balance in sewage treatment plants.
‌环保工程‌：污水处理厂流量平衡‌。

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