Chamber Type Level Switches
 

 

 

 

Torque Tube design eliminates O-rings and packing in Model 75 level controls. Float assembly removes easily from chamber for periodic inspection. Four 1" NPT process connections provide for top/bottom "flow through" or side/side mounting. Enclosures are available in general purpose, NEMA 1. Cast iron chambers are available for pressure to 300 psig (21 bar) at 425°F (218°C). Cast steel and 304 stainless steel chambers are rated for 400 psig (28 bar) at 500°F (260°C). All types will operate to a minimum specific gravity of 0.66.

SPECIFICATIONS
Service: Compatible liquids. Cast iron is not for use with lethal or flammable substances either liquid or gaseous.
Wetted Materials: Body: cast iron, cast steel, or 304 SS. Float: 304 SS. Torque Tube: brass or 304 SS. Body Gasket: carbon.
Temperature Limit: Cast iron body: 425°F (218°C), cast steel or 304 SS body: 500°F (260°C).
Pressure Limit: Cast iron body: 300 psig (20.7 bar), cast steel or 304 SS body: 400 psig (27.6 bar).
Enclosure Rating: General purpose.
Switch Type: SPDT mercury switch. Optional SPST or two stage.
Electrical Rating: 10A @ 120 VAC/DC, 5A @ 240 VAC/DC.
Electrical Connections: Screw terminal.
Conduit Connection: 7/8" (22.23 mm) hole for 1/2" (12.7 mm) conduit.
Process Connections: 1" female NPT. Four for side/side or top/bottom mounting.
Mounting Orientation: Vertical.
Weight: 35 lb (15.9 kg).
Agency Approvals: UL and CSA.
Deadband: Approximately 1" (25.4 mm).
Specific Gravity: 0.66 minimum.

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