Snappy Joe® N550 Series Emergency Shutoff Valves (ESVs) are designed for in-line installations, usually near a bulkhead. The valves provide a means of shutting off gas in the event of a hose rupture or piping break at the transfer area to avoid a large scale loss of LP-Gas (Propane) or ammonia.

These valves can be manually opened and closed at the installed location or closed remotely by either cable or air. A remote operating actuator is also available.

The Snappy Joe® N560 Series Emergency Shutoff Valves (ESVs) are designed for attachment
to the shutoff valves on railroad tank cars. Pneumatic operation of the valve is by means of a standard quick disconnect coupling which is furnished with the valve. Approximately
20 to 60 psig (1,4 to 4,1 bar) is needed to open the valve, depending upon tank car pressure.

Remote closure from one or more points, such as the unloading riser, is accomplished by exhausting pressure from the valve’s piston chamber with a pneumatic control valve.