O’Keefe Controls Co.
O’Keefe Controls Co.
4 Maple Drive
Monroe, CT 06468
Phone: 203.261.6711
Email: info@okeefecontrols.com • Website: www.okeefecontrols.com
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The Magnetic Float Valve is an air sensor for detecting liquid level inside a vessel. The float mechanism mounted within the vessel operates a ceramic coated magnet. As the float moves, it pivots the magnet. A magnetically actuated sensor on the outside of the solid metal housing reacts to the inner magnet movement. The movement shifts a 3-way air valve. Both side mounted and top mounted pneumatic float valves are available either as normally closed or normally open.  Normally closed pneumatic float valves produce a pneumatic output on liquid level rise.  Normally open pneumatic float valves produce a pneumatic output on liquid level fall.
Unit of Measure

Specifications

Installation

 N/A Top Mounting

Specific Gravity

 N/A 0.5

Maximum Liquid Temperature

 N/A 180 ºF

Maximum Liquid Pressure

 N/A 200 psig

Body Material

 N/A Stainless Steel

Bracket Material

 N/A Anodized Aluminum

Float Material

 N/A Stainless Steel

Materials of Switch Body

 N/A Plastic

Connection Barbs Material

 N/A Brass

Wetted Material

 N/A 301 SS 303 SS 304 SS Ceramic

Minimum Air Pressure

 N/A 30 psig

Maximum Air Pressure

 N/A 85 psig

Output Valve

 N/A 3-Way Valve

Minimum Temperature

 N/A 35 ºF

Maximum Temperature

 N/A 120 ºF

Operation

 N/A Normally Closed – Pneumatic Output on Liquid Level Rise

Connection A

 N/A 1" NPT Male

Features

Features

 N/A
  • Explosion Proof
  • No electrical hazard
  • For vented or non-vented vessels
  • Stainless steel float mechanism
  • Side mounting or top mounting selection
  • 3-way pneumatic valve
  • Actuation indicator on 3-way valve
  • Magnetic coupling-float to valve
  • Minimum air usage

Float And Body Specifications

Temperature Limit

 N/A 200 ºF

Wetted Materials

 N/A 303 SS, 301 SS, 304 SS, Ceramic

Pneumatic Sensor Specifications

Fluid Media

 N/A Clean compressed air or inert gases, filtration < 40 microns

Operating Pressure

 N/A 30 to 85 psig

Operating Temperature

 N/A 35 to 140 ºF

Valve Connections

 N/A For 3/32" ID tubing (2.5 mm)
Air Supply Port #1
Output Port #2
Vent Port #3

Actuation Indicator

 N/A 1/16" diameter/Blue
Indicator extends outward (approximately 1/16" stroke) when port #1 is passing to port #2.

Air Flow

 N/A No continuous air flow usage.

Air Valve Orifice Diameter

 N/A 0.080 in

Material of Brackets

 N/A Anodized Aluminum

Material of Switch Body

 N/A Plastic

Material of Connection Barbs

 N/A Brass

Deadband

 N/A Change in liquid level between valve actuation and deactuation – approximately 1/4"