Flow Switches for Liquid & Gas Service

Offered in general purpose and hazardous proof configurations, this compact flow switch is a great choice for monitoring a diverse range of liquid applications. SwitchGuard will monitor flow and temperature to protect equipment and process from high temperatures and no-flow conditions. SwitchGuard has NO moving parts and is a reliable alternative to failure prone mechanical flow switches. The short sensor is intended for use in pipe sizes 1/2″ to 1½” in diameter and the long sensor is recommended for pipe sizes 2″ and up.

Service: Compatible Liquids
Flow Set Point: 1.2 fps (.4 mps) (water related)
Response Time: < 30 seconds
Sensor Rating: CFSG-1: NEMA 6 (IP67)
CFSG-2: NEMA 7

This general purpose liquid switch package provides a complete solution for low flow pump or process protection with a 16A compact relay controller. The optional strobe light brings immediate attention to low flow conditions. The short sensor is intended for use in pipe sizes 1/2″ to 1½” in diameter and the long sensor is recommended for pipe sizes 2″ and up. The products is broadly selected for low or no-flow applications.

Set point: 1.2 fps (.4 mps) (water related)
Response Time: < 30 seconds
Supply voltage: 120/240 VAC @ 50-60 Hz
Sensor Rating: NEMA 6 (IP67)

Offered in both short and long sensor lengths, this innovative flow switch is a great choice for monitoring a variety of liquid applications. FloGuard sets your present flow-rate at 100% at power up. Relative flow rate is indicated by the 7 LED lights. When the flow rate drops to 50% an alarm goes off. If you prefer, you can adjust the alarm point to fit your needs. A green output indicating LED is also included. The short sensor is indicated for use in pipe sizes ranging from 1/2″ to 1½” in diameter and the long sensor is recommended for pipe sizes 2″ and up.

Set point: Pre-set to 50% (field adjustable)
Response Time: ± 25 seconds
Supply voltage: 20-30 VDC (short circuit protected)
Range: 0 to 5 fps (0 to 1.5 mps)

This industrial purpose flow switch is a great choice for monitoring a diverse range of air or gaseous applications. NitroFlo is encapsulated in epoxy resin and operates with NO moving parts. NitroFlo has adjustable span potentiometers, and adjustable set point from 1.5 to 65 feet per second, and LED indication of flow. Typical applications include air conditioning, dust collection systems, ventilation monitoring and energy conservation systems.

Pressure: CFNF-U: 15 psi (1 bar)
CFNF-S: 150 psi (10 bar)
Accuracy: < 3%
Hysteresis: < 20%
Supply Voltage: 24 VDC ± 30 %

This industrial purpose flow switch is a great choice for monitoring a variety of air or gaseous applications. NitroFlo features solid-state switching and is extremely reliable even under the harshest environmental conditions. NitroFlo features a repeatable alarm, an adjustable set-point from 3 to 32 feet per second, and LED indication of flow. The short housing intended for use in pipe sizes 1/2″ to 1½” in diameter and the long housing is recommended for pipe sizes 2″ and up. Typical applications included air conditioning, ventilation, air filter monitoring, extraction fans, blowers, damper regulators and energy conservation systems.

Pressure: CFNF1-_-U: 15 psi (1 bar)
CFNF1-_-S: 150 psi (10 bar)
Switching Range: 3 to 32 fps (1 to 10 mps)
Voltage Tolerance: ± 10 %
Switching Current: 200 mA max.

This industrial purpose flow switch is a great choice for monitoring a variety of air or gaseous applications. NitroFlo features solid-state switching and is extremely reliable even under the harshest environmental conditions. NitroFlo features a repeatable alarm, an adjustable set-point from 3 to 32 feet per second, and LED indication of flow. The short housing intended for use in pipe sizes 1/2″ to 1½” in diameter and the long housing is recommended for pipe sizes 2″ and up. Typical applications included air conditioning, ventilation, air filter monitoring, extraction fans, blowers, damper regulators and energy conservation systems.

Pressure: CFNF2-U: 15 psi (1 bar)
CFNF2-S: 150 psi (10 bar)
Switching Range: 3 to 32 fps (1 to 10 mps)
Temperature Drift: <0.5% / K
Switching Current: 500 mA max.

Ideal for small pipe and low flow applications, AeroSwitch is a compact inline air flow switch that will accurately monitor a variety of gaseous media. Completely encapsulated in epoxy resin, AeroSwitch features a broad measuring range, LED output display and is well-suited for small pipes up to 3/4″ in diameter. Typical applications include vent gas, wet stack gas, sample line flow, purge flow, nitrogen blanket flow and many others.

Pressure: 140 psi (10 bar)
Repeatability: < 1%
Temperature Drift: <0.3% / K
Measuring Range: 1.5-65 fps (0.5-20 mps)