
GD Series
Automatic Gas Shut-off Valve
The GD series are electrically-actuated automatic gas shut-off valves that close in 15 seconds or less on receiving a signal from a connected gas detector controller. Compact, pipe-clamp mounted, and manually resettable via the front PUSH button.
- Closes in 15 seconds or less on gas alarm
- Screw-type ball valve - positive shut-off, no spring reliance
- Manual PUSH reset button - no accidental re-open
- Pipe-clamp bracket - no pipe cutting required
- Compatible with FC-531R, EC-533R, EC-536R controllers
- KGS / KC certified for residential and commercial use
GD-703 Specifications
Select a model above to compare specifications.
Fast, Reliable, Simple to Reset
≤ 15 Second Shut-off
From alarm signal to fully closed valve in 15 seconds or less - fast enough to contain most leak events before ignition risk.
Screw-Type Ball Valve
Motorized screw-drive ball valve mechanism delivers positive shut-off with no reliance on spring tension, ensuring consistent closure across its service life.
KGS / KC Certified
Each model carries Korea Gas Safety (KGS) and KC certification, meeting all regulatory requirements for residential and commercial gas safety installations in Korea.
Pipe-Clamp Bracket
Integrated pipe-clamp bracket mounts directly to the existing gas supply pipe - no pipe cutting or special tooling required for installation.
Pipe-Clamp Mount - No Pipe Cutting
The GD series mounts directly onto the existing gas supply pipe using the integrated clamp bracket. No pipe modification, no special tools - just clamp, wire, and test. The bottom terminal connection keeps wiring neat and accessible for service.
- Integrated clamp bracket fits the selected pipe size
- No pipe cutting or modification required
- DC 12V wiring to compatible controller
- Red PUSH button for manual reset after shut-off event
- KGS-certified installation procedure

Bottom view - pipe-clamp bracket with KGS certification mark
Works with the Full Soosan Controller Line
Connect one or multiple GD valves to any Soosan gas detection controller for a complete zone-controlled gas safety system.
Safety & Installation Warnings
The GD series operates on DC 12V supplied by a compatible Soosan controller. Do not apply AC mains voltage directly to the valve - permanent damage and fire hazard will result.
Gas line work must be performed by a licensed gas engineer. Improper installation may void the KGS certification and create a safety hazard.
Select the correct model for your pipe diameter: GD-703 for 1/2", GD-704 for 3/4", GD-705 for 1". Incorrect sizing will result in mechanical interference or gas leakage.
Immediately ventilate the area, do not operate electrical switches, close the manual gas cock, evacuate, and call emergency services (119).
GD Series FAQ
Need the GD series for your project?
Tell us your pipe diameter, number of zones, and connected controller - our team will confirm the right model and provide a quote.
