Square D 9037HG36LZ20 Closed Tank Float Switch with Viton Seal

The Square D 9037HG36LZ20 is a commercial-grade closed-tank float switch designed for reliable liquid level control in demanding industrial applications. This Type HG float switch features a side-mounted design with a 2.5-inch NPT screw-in bushing for secure installation on closed tanks operating up to 50 psi.

Key Features:

• Premium Viton seal construction rated for liquid temperatures up to 250°F, ideal for use with water, hydraulic oils, diesel fuel, and corrosive fluids
• Durable construction with 304 stainless steel float, 316 stainless steel rod, cast iron bushing, and brass connector
• DPST (double-pole single-throw) electrical contacts rated for 575 VAC power circuits with field-reversible operation
• 90-degree float rod angle with adjustable differential control range
• External pointer indicates float position for easy monitoring
• NEMA 1 electrical junction box with knockout provisions for conduit connections
• Suitable for ambient temperatures from -22°F to 200°F

This float switch assembly includes the complete electrical switch mechanism, float, float rod, and mounting bushing. The contacts can be configured to close on either liquid rise or liquid fall, making it versatile for pump control, tank fill applications, and condensate systems. Designed for minimum cycle life of 1,000,000 mechanical cycles and 100,000 electrical cycles, ensuring long-term reliability in commercial boiler feed systems, condensate tanks, and industrial process control applications.