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This valve is a new-generation product developed by our factory's engineering team, drawing inspiration from advanced, similar models manufactured abroad. It features hydraulic operation for its actuation mechanism, enabling fully automatic control—specifically, the main valve opens and closes automatically based on the pressure differential in the control line—ensuring that upstream pressure never exceeds a preset threshold. The valve body boasts a streamlined design, minimizing fluid resistance while delivering excellent sealing performance and highly responsive automatic opening and closing capabilities. This innovative valve effectively releases excess pressure exceeding the safety limit set by the pilot valve within the water supply system, maintaining system pressure below a critical, safe level. By doing so, it prevents potential damage to pipelines or equipment caused by high or sudden pressure surges. As a result, this valve is ideally suited for use in fire-testing circulation systems in high-rise buildings, as well as other water-balancing systems where pressure relief is essential to safeguard against hazardous overpressure conditions.

1: Nominal pressure: PN1.0–2.5

2: Main component materials: Valve body, Y-type

3: Main external dimensions: DN50–1800

4: Applicable Media: Water, Oil Products

5: Operating temperature: ≤80°C

6: Design and Application Standards: GB, BS, ANSI, JIS, DIN, API

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