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The Model 609 is a magnetically actuated precision-made on/off pneumatic instrument, which incorporates the use of a magnetically controlled switch actuator in conjunction with specific displacer configurations to provide liquid level indication and control. It is designed to operate under the corrosive and vibrating conditions associated with petrochemical industrial applications such as scrubber level control on level gas compressors for maintaining specific liquid levels and/or for high or low safety alarm indication. The air switch can be supplied with any single stage (600 series) Omnitrol unit, with the exception of the Series 250. With the use of an adaptor kit it may be field retrofitted to any standard housing electric switch unit
FEATURES
• 316 Stainless Steel construction (switch element) • For use in corrosive and vibrating conditions • Standard ¼” NPT supply and output connections • Constantly engaged magnetic field • Trouble-free service - Assured by unique magnetic coupling, reliable performance and low cost • Direct or reverse acting operation • Fluorisilicon O-Ring Seals - for tight shut-off and long life
• Fast action and large, easy to clean ports provide fast response to liquid level changes • Three port, non-bleed design conserves instrument air or gas
SPECIFICATIONS
Materials of Construction Body and Internal Components 316 SS O-Ring Seals Connections
Ratings Pressure Ranges I
Maximum Ambient Temperature
Control Switch Direct Acting Air Switch: Low Liquid Level High Liquid Level
Reverse Acting Air Switch: Low Level Liquid High Level Liquid
Instrument Air Supply 0-10 lbs. or 0-75 lbs. maximum pressure 100 PSIG -30°F to 150°F
Model 310
Fluorosilicone ¼" NPT for supply and output connections-adaptable to standard chamber mount or top mount units
Supply port closed; Exhaust port open Supply port open; Exhaust port closed
Supply port open; Exhaust port closed Supply port closed; Exhaust port open
*For a given set of conditions or specific gravity, pressure and temperature, the switching differential will be approximately 5% greater when the air switch is used in lieu of the standard electric switch.