Description
The Schneider Electric (Square D) 9037HG34 is a heavy-duty float switch engineered for dependable liquid level detection and control in a wide range of HVAC, boiler, pump, and industrial fluid management applications. With a 2.5″ NPT threaded connection and a left-float configuration, this switch is designed for straightforward installation into tanks, reservoirs, sumps, and piping systems where accurate level sensing is critical.
Key Features
- 2.5″ NPT threaded conduit connection for secure, leak-resistant mounting
- Left-float configuration for flexible installation orientation
- Rugged construction suited for demanding HVAC and hydronic system environments
- Reliable float-actuated switching action for pump start/stop and level alarm control
- Part of the Square D 9037 Series — a trusted line of liquid level float switches
- Compatible with water, oils, and other non-corrosive liquids typically found in HVAC and building mechanical systems
Typical Applications
- Boiler and hydronic system water level control
- Sump pump activation and deactivation
- Cooling tower basin level monitoring
- Tank high/low level alarm circuits
- Condensate and fluid management systems
Why Choose the Square D 9037HG34?
Schneider Electric’s Square D brand has long been synonymous with quality electrical and control components. The 9037 Series float switches are widely specified by mechanical contractors and building automation professionals for their proven reliability and ease of installation. The 2.5″ NPT connection ensures compatibility with standard pipe fittings, while the left-float design allows installation in applications where float travel is directed to the left of the switch body — providing accurate, repeatable level switching performance over the life of the system.
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