Dwyer Flow Switches Dealers

Pantech Instruments, an eminent manufacturer of process control instruments since last 15 years, has developed this type of meter by their indigenous R&D efforts. The flow meter is definitely a state of technology product, totally in line with all the industrial and gas standards. The thermal sensor uses the principle of heat dissipation. A heated sensor is inserted into the stream of gas flow. The cooling effect of the gas is measured, transduced and interpreted as flow. The cooling effect is a direct function of the heat transfer that takes place due to the flow of gas. The heat transfer in turn is a direct function of the velocity as well as density of the process gas. Hence variations in temperature and pressure in the process gas are automatically compensated. For all practical purposes the output signal obtained is pressure and temperature compensated “massflow” signal. Thus the compensated flow independent of pressure and temperature variation is indicated without need for any separate transducers for the same.

• Country of Origin: India
• Type: Vane Type Flow Switch
• Brand Name: Dwyer
• Material: Forged Brass
• Application: Water Levelling
• Voltage: 230VDC
• Frequency: 50HZ
• Power: 10-15Amp
• Temperature: 0Dig C To + 60Dig C
• Hole Diameter: 0-20mm
• Brand Name: Dwyer
• Weight: 28.22 oz (0.8 kg)
• Electrical Rating: 10 A res, 3 A ind @ 250 VAC.

• Operating Temperature: -14 Degree F To 140 DegreeF (-10 DegreeC To 60 DegreeC)
• Flow Rate: 0.5 LPM To 41 LPM
• Model Number: FS-600
• Operating Pressure (Max.): 363 PSIG (25 bar)
• Port Size: 1/2
• Body Material: Stainless Steel

• Service: Compatible liquids.
• Wetted Materials:  
• Bellow: Tin-bronze;
• Vane: SS;
• Body: Forged brass.
• Temperature Limit: 230ºF (110ºC).
• Pressure Limit: 145 psig (10 bar).
• Enclosure Rating: NEMA 4 (IP64).
• Switch Type: SPDT snap switch.
• Electrical Rating: 10A res, 3A ind @ 250 VAC.
• Electrical Connection: Cable gland with attached wire leads or optional conduit connection.
• Process Connection: 1˝ male NPT or BSPT.
• Mounting Orientation: Switch must be installed vertically on horizontal pipe runs.
• Set Point Adjustment: Four vane combinations and an adjustment screw

• Type: Vane Type Flow Switch
• Brand Name: Dwyer
• Material: NBR, PVDF, Brass
• Certification: Yes
• Application: Water Levelling
• Voltage: 230VDC
• Frequency: 50HZ
• Power: 10-15Amp
• Temperature: 0Dig C To + 60Dig C
• Hole Diameter: 0-20mm
• Setting Range: 0-1500pF, 1500-3000pF

• Brand Name: Dwyer
• Model Name/Number: Series V4
• Weight: 4 lb 8 oz (1.9 kg)
• Service: Gases or liquids compatible with wetted materials.
• Process Connection: 1-1/2" male NPT or 1-1/2" male BSPT or 38.10 mm
• Electrical Rating: UL, FM, ATEX and IECEx models 10 A @ 125/250 VAC
• Switch Type: SPDT snap switch standard, DPDT snap switch optional.
• Pressure Limit: Brass body 1000 psig (69 bar), 316 SS body 2000 psig (138 bar), optional 5000 psig (345 bar) availab

The Model AAFS-1 Adjustable Air Flow Switch is capable of detecting a wide range of air velocities with minimal user calibration. The adjustable screw changes the set point at which the SPDT snap switch engages. Quality features include a stainless steel vane, galvanized steel base, and ABS enclosure. The unit is field adjustable from 200 to 1800 FPM (1 to 9.2 msec).

• Voltage: 200VDC
• Power Consumption: 9 to 24 VDC
• Pressure Limits: 300 psig (20.67 bar)
• Process Connection: 1/2
• Switch Type: 1 NO NPN, 1 NC NPN

The general purpose gas flow switch is a great choice for a broad range of relatively clean gases with non-coating characteristics. Media examples include nitrogen and scrubber exhaust fumes. The 1A relay provides a reliable switch interface with remote devices such as a PLC, SCADA or alarm. The short sensor is intended for use in pipe or ducting from 12” to 1-12”; the long sensor is applied in 2” and up. The switch set point may be adjusted from 1 to 90 fps. The product is broadly selected for low or no-flow applications.

The Thermal Flow Switch Monitor SP-150 is based on the principle of thermal dispersion. A typical configuration uses two Temperature Detectors set within the tip of the sensor. One Temperature Detector is heated a few degrees above the other one. As the process medium flows over the tip of the sensor it disperses some of the heat from the heated Temperature Detector. The delta temperature is a function of flow velocity and converted into electronic signal. The open collector changes state once the set point has been reached.  

Vane Flow Switch, WIKA Pressure Gauges, Digital Datalogger