" Valve Shutter" is a safety system developed to prevent secondary accidents due to earthquakes, and to forestall gas explosions and gas poisoning due to gas leaks, using an emergency shutoff valve on the gas cylinder.

Valve Shutter (VS-100 Mark II)
	This Valve Shutter is operated by only the Gas (N2 or Air), and no electric power is needed. Easy installation on existing cylinder.
Included in Valve Shutter is also a Control Box (VSC-101)
Up to five alarm sensors can be mounted Input signals can be switched to either current-free contacts or current contact signals Automatic and manual control modes are available Noise resistance is 1,000 V max
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