Installation Locations:
●At the outlet of distribution reservoirs, or along the middle or terminal sections of transmission
and distribution pipelines.
●Installed to meet emergency shutoff or disaster prevention requirements.
Operational Characteristics:
●Can be activated and closed using either of the following drive methods:
▶Built-in seismic sensor (with flow velocity detection function).
▶External seismograph control system (integrated with existing equipment).
●When an earthquake or abnormal flow velocity change is detected, an electrical signal is triggered,
▶ activating the main valve to perform an automatic emergency shutdown.
Safety and Functional Features:
●Provides immediate valve closure response during earthquakes, effectively
preventing disaster escalation.
●Protects reservoirs and pipeline networks by preventing massive water leakage.
●Equipped with an on-site manual reset function for convenient maintenance.
Manual Reset Mechanism:
●After the main valve has automatically closed, if reopening or reclosing is required:
▶Manual reset can be performed using a hydraulic pump located on the side of the valve body.
▶No disassembly or external power supply is required, allowing human intervention and
ensuring operational flexibility.