The operating principle is based on a free floating magnetic piston which responds only to the motion of fluids within the line, not to static or system pressures. In the presence of fluid flow, controlled movement of the piston actuates an external hermetically sealed reed switch. This switch can be used to actuate audible or visual alarms, as well as relays, or other controls. The piston's movement can be seen through the PFA body.
• For corrosive and non-corrosive liquids or gases• Senses increasing or decreasing flow• Very accurate custom flow settings• All PTFE/PFA switch with flare fittings• Universal mounting available
Body
PFA
Wetted Parts
PTFE/PFA
Pressure and Temperature Specifications
Maximum Operating (psig)
60
Maximum Operating Temperature
40°C
Reed Switch Data (Electrical Ratings)
10 Watts SPST or 3 Watts SPDT (Hermetically Sealed) UL Recognized. File E47258.
Reed Switch
Operating Temperature -40ºC to 125ºC
Switching Voltage
200 VDC (170 VDC for SPDT)
Breakdown Voltage
200 VDC (200 VDC for SPDT)
DC Resistive
10 VA (3 VA for SPDT)
AC Resistive
10 Watts (3 VA for SPDT)
Switching Current
0.5 A (0.25 A for SPDT)
Carrying Current
1.2 A (0.5 A for SPDT)
Lead Wires
No 24 to 18 AWG. 18" Length, Polymeric UL Recognized (Belden cable or special shielded cable is available)
Lead Wires Color
SPST: 2 Blue Wires SPDT (3 Wires): Green - Common, Yellow - Normally Closed, Orange - Normally Open
Flow Calibration
(Higher accuracy units available)
Set Point Accuracy
10% maximum
Repeatability
± 2% maximum
For additional specification details, please refer to the product data sheet located in the documentation tab of this web page.
