Hydrolevel HYDRO-44-200 Liquid Flow Switch 1-6 Inch Pipe

Product Description

The HYDROLEVEL HYDRO-44-200 is a general-purpose liquid flow switch designed to start or stop electrically operated equipment by detecting liquid flow through piping. It is rated for systems up to 160 psi and 250 degrees F, making it suitable for demanding hydronic and water-based applications. The unit is housed in a NEMA 1 enclosure and operates at 120 volts. Licensed HVAC technicians, boiler mechanics, and plumbers install this switch in commercial and residential systems where reliable flow detection is required to protect burners, pumps, and alarm circuits.

This flow switch is intended for water media applications and is not designed for use with hazardous or corrosive fluids. It fits pipe sizes ranging from 1 inch to 6 inches, covering a broad range of hydronic heating, chilled water, and general plumbing systems. Typical installation scenarios include boiler loop protection, pump proving, and flow-actuated alarm triggering in building mechanical systems.

Key Features

• Detects liquid flow to start or stop burners, pumps, or alarm equipment
• Rated for pipe sizes from 1 inch to 6 inches in diameter
• Maximum operating pressure of 160 psi for pressurized system compatibility
• Maximum operating temperature of 250 degrees F
• NEMA 1 enclosure for standard indoor mechanical room installations
• 120-volt operation compatible with standard control circuits

Compatibility

Designed as an OEM-style general-purpose liquid flow switch for use on water piping systems ranging from 1 inch to 6 inches in diameter in residential and commercial hydronic, chilled water, and plumbing applications. Not intended for hazardous or corrosive fluid service.

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Shut off system pressure and isolate the pipe section before cutting into the line to mount the paddle-type switch. Power down the control circuit before making electrical connections, and follow applicable NEC requirements for low-voltage and line-voltage control wiring. Verify flow direction against the switch marking before commissioning.

Technical Specifications

• Product Type: Flow Switch
• Application: Liquid Flow
• Pipe Size Range: 1 inch to 6 inches
• Maximum Pressure: 160 psi
• Maximum Temperature: 250 degrees F
• Voltage: 120 volts
• Enclosure Type: NEMA 1

Standard Information

• Brand: HYDROLEVEL
• Manufacturer Part Number: HYDRO-44-200