Gems Level Switches Meet Latest Self-Checking Capability Requirements

Many hazardous cargoes now require self-checking of loading and off-loading operations under c l o s e d - l o a d i n g conditions for crude and fuel oil, chemical, and other product carriers. The Gems LS-55555 Series manual check level switches were designed to meet these requirements, specifically for high level control use in closed-loading tankers, but they are equally suitable for use in other types of level applications.

A unique safety feature of the LS-55555 switches is the hand simulation for pre-checking closed tank high level alarms. A simple handring atop the unit on deck raises float (s) inside the tank, just as liquid level would, to actuate the system. As normal operation is simulated, the check is a positive one.

Constructed of stainless steel, units up to 15 feet long have one or two level stations with switches either normally open or normally closed. I n s t a l l a t i o n is through a flange in 5-inch, schedule 40 pipe. Electrical components are protected against moisture contamination by a silicone fluid reservoir within the unit's stem assembly. Rough service dependability is built-in throughout. Operating pressure is 50 psig, temperature is 180 F maximum. The magnetically actuated reed switch is hermetically sealed.

For more details, Write 32 on Reader Service Card

Maritime Reporter Magazine, page 28,  Mar 15, 1981

Read Gems Level Switches Meet Latest Self-Checking Capability Requirements in Pdf, Flash or Html5 edition of March 15, 1981 Maritime Reporter

Other stories from March 15, 1981 issue


Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.