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The Series P1 Brass Flow Switches utilizes a piston-type design for accurate detection of excessive or insufficient flow rates. The switches have preset actuation points from 0.10 to 1.5 GPM for liquid flow.
Retail price from $333,35
Available
The Series V4 Flotect® Flow Switches are rugged and reliable, ideal for automatically protecting equipment and pipeline systems against damage from reduction or loss of flow. Time tested in thousands of pipeline installations and processing plants around the world this Series is Weatherproof, designed to meet NEMA 4 and Explosion-proof (listing included in specifications). This series can be used in pipes 1-1/2″ (38.10 mm) and up.
Retail price from $660,95
Available
The Series V6 Flotect® Flow Switch is surprisingly compact, and specifically engineered to monitor liquid, gas, or air flows. Time tested in thousands of pipeline installations and processing plants around the world, this Series is Weatherproof, designed to meet NEMA 4 and Explosion-proof (listing included in specifications). Tees are available for installation in pipelines from 1/2″ to 2″ (12.70 to 50.80 mm). With bushings added the unit is easily adapted to 1/4″ and 3/8″ (6.35 and 9.53 mm) piping.
Retail price from $283,8
Available
The Series V10 Flotect® Mini-Size Flow Switches is designed to provide inexpensive, reliable monitoring of the presence or absence of flow in a system. This series is available for field installation in pipelines from 1/2 to 2″ diameter and available in brass or 303 SS body.
Retail price from $88,75
Available
The Series FS-2 Vane Flow Switches offers an economical flow proving solution. The FS-2 paddles are adjustable to fit 1 to 8″ size pipe.
Retail price from $75,35
Available
The Series V7 Flotect® Flow Switch is an inexpensive range switch for use with compatible liquids to start or stop electronic operated equipment when flow or no-flow conditions occur. Design is standard weatherproof, meeting NEMA 4X.
Retail price from $128,95
Available
The compact Series P2 Flow Switch utilizes a piston-type design for both air and pure water applications. The switches have preset actuation points from 0.05 to 1.0 GPM for water and 25 CFH to 5 CFM for air. The piston design incorporates a hermetically sealed SPST magnetic reed switch. The P2 is comprised of PPE & PS (polyphenylene ether and polystyrene) housing and piston and 316 Stainless Steel spring and stop pin. All wetted parts are FDA compliant. Economical and superior design make this an excellent switch for pure water equipment, filter life monitoring, heat exchangers, and cooling applications.
Retail price from $152,15
Available
The Series P3 Polypropylene Flow Switches fit almost any piping requirements with compatible liquids. Choose the inlet and outlet port to be 3/8″ male NPT or 1/4″ male “Quick Disconnect° then select a quick disconnect acetal adapter for straight through flow or with a shut off valve.
Retail price from $123,85
Available
The Series P8 High Pressure Brass Flow Switches are ideal for high in-line pressures. Set points range from 0.25 to 2.0 GPM for liquid flow.
Retail price from $246,65
Available
The Series G9 Globe Flow Switch provides accurate flow detection in water and oil with ±1% repeatability. A shuttle bypass vane inside the housing is controlled externally using an ordinary flat blade screwdriver, allowing flow settings to be changed without disassembly. Each switch is constructed of noncorrosive materials and resists shock and vibration. The Series G9 is suitable for triggering alarms on interlocking shutdown circuitry when flow rate is incorrect and for protecting bearings, gears, and cooling systems.
Retail price from $772,1
Available
The Series GVS Globe Valve Switches offer accurate flow detection with 1% repeatability and external adjustability over a broad range of flow settings for compatible liquids.
Retail price from $497,85
Available
The Series AFS Adjustable Flow Switches are externally adjustable piston-type flow switches for oils, liquids and gases. This Series offers an infinite number of flow settings from 0.5 to 20 GPM.
Retail price from $812,45
Available
The Model DAFA Air Flow Indicator and Alarm alerts users of low or no air flow conditions in pipes utilizing a thin, field trimmable vane to sense the air flow rate. An 85 dB audible buzzer alternates with a bright red LED to alert users when the air flow rate drops, indicating low or no flow in the pipe. The DAFA is battery powered to provide versatility for where it can be installed, and offers a yellow LED to indicate a low battery. This device is ideal for monitoring radon mitigation systems by detecting a loss of air flow in the pipe and providing a signal to homeowners if the fan has stopped operating.
Retail price from $58,3
Available
The Series TDS Thermal Dispersion Flow Switch offers solid state flow detection of non-coating liquids for pump and process protection. SPDT output allows for interfacing with remote PLC or relay control device. The adjustable switch point is factory calibrated at 0.2 fps with LED indication of flow and calibration status. Units feature selectable NO or NC operation and are not damaged by over-ranging flow velocities.
Retail price from $442,7
Available
The Model 530 Air Flow Switch provides excellent sensitivity and reliability at a very reasonable price. Quality features include a rugged die cast body, stainless steel vane and SPDT snap switch. Unit is field adjustable from 400-1600 FPM. Mounting is fast and simple, with only two screws needed. Vane fits 6″ or larger ducts.
Retail price from $126,95
Available
The Series TDFS2 Thermal Dispersion Flow Switch is a thermal flow switch that indicates whether the flow rate is above or below a user set flow rate. The unit incorporates two LED status indicators providing visual switch indication. The set flow rate (setpoint) is easily field adjustable with included magnet and the unit has both NO and NC NPN outputs.
Retail price from $325,95
Available
The Series AVFS Adjustable Air Flow Switch is specifically designed to monitor air flow in ducts and provides a 3 A contact output to indicate a change or loss of flow. The AVFS provides a ±5% set-point repeatability across a full-scale range of 1-10 m/s (197-1969 FPM) and includes a mounting bracket for quick duct mounting.
Retail price from $336,45
Available
Series BFM Bulk Flow Monitor provides effective monitoring for most flow/no flow conditions in pipes and chutes. It’s sensing techniques, which use a Piezo element, makes the BFM versatile for most flow/no flow applications.
Retail price from $344,7
Available
The Model AAFS Adjustable Air Flow Paddle Switch is capable of detecting a wide range of air velocities with minimal user calibration. Quality features include a stainless steel vane, galvanized steel base, and ABS enclosure.
Retail price from $90,8
Available
Direct-Reading Series FS Flowmeters offer visual flow rate indication and an adjustable flow alarm to close AC electrical circuits, trigger warning lights, or activate other process control equipment. Spring-retained movable piston design allows installation in any position.
Retail price from $464,7
Available
The WSERD air flow monitor is suitable for monitoring fans, control flaps, humidifiers and electrical heating registers in accordance with DIN 57100, Part 420 and for use with DDC systems. The air flow monitor works according to the calorimetric principle. The extraction of heat by the air flow is measured and converted into the switching value. The sensor contains a heating element and two temperature sensors. A microcontroller controls the heating and measures the temperature differences. From the stored calibration curves, it calculates the air flow speed and transmits the value serially to the control unit. Here another microcontroller determines the switching behavior of the two relays from the default values of the setting controls.
price by request
Available
For monitoring small and medium quantities of non-aggressive liquid in pipes with diameter of 1″, 1/2″, 3/4″. The device does not require any supply voltage. Installation: Vertical in a horizontal pipe. Damping zone at least 5-times pipe diameter in front of and behind the paddle. Mounting/attachment: Union nut G 3/8″ on soldering socket (for soldering into a standard copper T-piece
with outlet 1/2″) or T-piece. Not certified for drinking water.
price by request
Available
This flow monitor was specially developed for monitoring the flow of liquid media. The monitor is typically used in machine and apparatus construction, for monitoring oil, cooling, and lubrication circuits, or as low-water protection in sprinkler systems, heating systems, chillers, and heat pumps. The unit is installed vertically in a horizontal pipe. The calming distance must be at least 5 times the pipe diameter upstream and downstream of the paddle. The maximum flow can be considerably higher than the max. setting the value of the monitor. Not tested for drinking water.
price by request
Available