Gems Paddle Switches Monitor Flow Conditions —Literature Available

Paddle flow switches are available from Gems Sensors Division of Transamerica Delaval to provide a flow or no-flow condition for shipboard and other marine applications. The FS-550 paddle units are said to offer the same quality and reliability that has been provided by other Gems flow controls over the past 25 years.

One specific shipboard application involves detecting low flow in the cooling lines that reduce heat d i s s i p a t i o n of electronic tubes and other expensive communication equipment. The FS- 550 provides very inexpensive "insurance" for preventing damage to these costly systems.

The FS-550 is mounted vertically into an existing horizontal pipe, and liquid flow simply deflects the paddle assembly, magnetically actuating a hermetically s e a l e d reed switch. Standard SPDT, 20-watt resistive load output capability to alarm annunciator panels or through accessory relays is sufficient to completely shut down a coolant pump, thereby preventing cavitation due to low flow.

Minimum pressure drop is inherent to the FS-550. Pipe sizes from 1 inch to 6 inches can be monitored with this versatile paddle switch. Made of compatible bronze and/or stainless steel, the FS-550 defies corrosion and other problems related to monitoring seawater and other coolant liquids.

For more information and free literature on the FS-550, Write 28 on Reader Service Card

Maritime Reporter Magazine, page 9,  Jul 1981

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Maritime Reporter

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