These switches activate or deactivate equipment when the flow rate reaches your set point. They are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switches with a 316 stainless steel body are more corrosion resistant than switches with a bronze body.

For technical drawings and 3-D models, click on a part number.

An adjustment screw lets you alter the set point to suit your application. These switches activate or deactivate equipment when the flow rate reaches your set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

For technical drawings and 3-D models, click on a part number.

These switches are UL listed for environments with flammable gases and combustible dust. They activate or deactivate equipment when the flow rate reaches your set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switches with a brass body meet NEC Class I, Divisions 1 and 2, Groups B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

Switches with a 304 stainless steel body are more corrosion resistant than switches with a brass body and meet NEC Class I, Divisions 1 and 2, Groups A, B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

For technical drawings and 3-D models, click on a part number.

For applications with a variable flow rate in environments with flammable gases and combustible dust, these UL-listed switches have an adjustment screw to alter the set point. They activate or deactivate equipment when the flow rate reaches your set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switch with a brass body meets NEC Class I, Divisions 1 and 2, Groups B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

Switch with a 304 stainless steel body is more corrosion resistant than the switch with a brass body. It meets NEC Class I, Divisions 1 and 2, Groups A, B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

For technical drawings and 3-D models, click on a part number.

For protection from dirt, washdowns, and corrosion, these switches have an enclosure that meets IP66 and NEMA 4X. They activate or deactivate equipment when the flow rate reaches your set point and have an adjustment screw for altering the set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

For technical drawings and 3-D models, click on a part number.

For flow monitoring at a glance, these switches have a plastic window with a rotor indicator that spins when flow is present. They activate or deactivate equipment when the flow rate reaches your set point. All have an adjustment screw for altering the set point to suit your application. Switches are single pole, double throw (SPDT) and can be installed to turn one circuit from "off" to "on" (normally open) or from "on" to "off" (normally closed).

Switches with a polypropylene body are lighter than sights with a metal body.

Switches with a 316 stainless steel body are more corrosion resistant than switches with a brass body.

For technical drawings and 3-D models, click on a part number.

At half the height of standard insertion flow switches, these are often installed in tees or pipe outlets in low-clearance areas. They’re installed in tees or pipe outlets to detect the flow rate of liquid in contact with the sensing paddle. They activate or deactivate equipment when the flow rate reaches your set point. Switches are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open). The flow rate varies based on the pipe size and the paddle length.

Maximum flow rate is how much water can temporarily flow through your pipe without damaging the switch.

Switches with a socket-weld connection are for use with unthreaded male pipe. Those with a threaded connection are for use with NPT female pipe.

Switches with a trimmable paddle can be cut to fit a range of pipe sizes. Those with a 301 stainless steel paddle can be used with higher maximum flow rates than switches with a Noryl plastic paddle.

For technical drawings and 3-D models, click on a part number.

Install these switches in tees or pipe outlets to detect the flow rate of liquid in contact with the sensing paddle. They activate or deactivate equipment when the flow rate reaches your set point. Switches are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed). They come with four sensing paddles that can be trimmed to fit a range of pipe sizes. The flow rate varies based on the pipe size and paddle used.

Switch with a 316 stainless steel body is more corrosion resistant than switches with a brass body.

Switch with an enclosure that meets NEMA 4X provides protection from dirt, washdowns, and corrosive liquids.

For technical drawings and 3-D models, click on a part number.

For installation in environments with flammable gases and combustible dust, these flow switches are UL listed for hazardous locations. They meet NEC Class I, Divisions 1 and 2, Groups C and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G. They’re installed in tees or pipe outlets to detect the flow rate of liquid in contact with the sensing paddle. Switches activate or deactivate equipment when the flow rate reaches your set point. All come with five sensing paddles that can be trimmed to fit a range of pipe sizes. The flow rate varies based on the pipe size and paddle used.

SPDT switches control one circuit. They can be installed to turn the circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

DPDT switches control two circuits. They can be installed to turn both circuits from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switches with a 316 stainless steel body are more corrosion resistant than switches with a brass body.

For technical drawings and 3-D models, click on a part number.

Send flow-rate readings to data recorders, loggers, and displays.

Transmitters with a 316 stainless steel body are more corrosion resistant than transmitters with a brass or polypropylene body.

For technical drawings and 3-D models, click on a part number.

Use these transmitters in areas with limited clearance to send flow-rate readings to data recorders, loggers, and displays. They have a 316 stainless steel body for corrosion resistance in harsh environments.

Optional display meter accepts flowmeter output signals and registers flow rate and total. The display can be manually reset.

For technical drawings and 3-D models, click on a part number.

Calibrated for compressed air, these transmitters send flow-rate readings to data recorders, loggers, and displays. They have compression tube connections that bite down on hard metal and plastic tubing for a secure seal. The digital display shows the flow rate, so these transmitters can also be used as flowmeters. Fittings are 316 stainless steel for corrosion resistance in harsh environments.

For technical drawings and 3-D models, click on a part number.

Use this switch to sense changes in airflow velocity in duct. The paddle extends into the duct and actuates the switch when airflow reaches the setpoint. Switch is rated NEMA 3R for protection from dirt, falling liquids, and light splashing.