Piston-type angle body flow switch. IN port on centerline, OUT at 90°. Reed switch closes on flow. Three 9/16-18 UNF ports. Polypropylene handles water, water-based coolants, soaps, detergents, and dilute acid/alkaline solutions.
| Quantity | Price |
|---|---|
| 1–9 | $53.38 |
| 10–24 | $49.02 |
| 25–49 | $42.35 |
| 50–99 | $37.62 |
| 100–199 | $24.67 |
| 200+ | $24.67 |
The 5-20-PP is the ERECTA SWITCH angle body flow switch in polypropylene for water-based, aqueous, soap, and mild chemical service. Liquid enters the IN port on the centerline and exits through the OUT port at 90 degrees. A spring-loaded poppet deflects at the calibrated flow setpoint, actuating a hermetically sealed reed switch (SPST N.O., closes on flow). Three 9/16-18 UNF ports — IN, OUT, and clean-out — accept Series 5 accessory fittings. Clean-out port allows poppet removal without line disconnection. Specify setpoint at order.
| Specification | Value |
|---|---|
| Series | 5-20 |
| Body | Angle — IN centerline, OUT at 90° |
| Overall Length | 3.80 in (96.52 mm) |
| Body Diameter | 0.75 in (19 mm) |
| Ports | 3× 9/16-18 UNF |
| Switch | Hermetically sealed reed | SPST N.O. |
| Contact Rating | 70 VA / 50W | 0.5A AC / 0.7A DC |
| Voltage Max | 300 VAC / 350 VDC |
| Setpoints | 0.10 / 0.25 / 0.50 / 0.75 / 1.00 GPM |
| Lead Wire | 24 in (600 mm) |
| Compliance | RoHS |
| Material | Polypropylene |
The 5-20-PP is used for pump start/stop control, high-level overflow protection, low-level dry-run protection, and tank or reservoir level alarms in OEM equipment. The modular ERECTA SWITCH system is built into laundry, HVAC, water-treatment, hydraulic, and chemical-handling machinery.
Choose the material to match the media: Polypropylene (PP) for general aqueous, acids, and bases; Acetal (AC/Delrin) for solvents, fuels, and hydrocarbons; Kynar PVDF (KR) for aggressive or harsh chemicals. Every ERECTA SWITCH model is offered in all three materials.
The 5-20-PP uses a magnetic reed switch wired in series with your relay or controller. Contact rating is 70 VA / 50 W resistive (UL File E70063). The switch ships with lead wires — connect directly to your control circuit.
No. The 5-20-PP is a mechanical float actuating a sealed reed switch — there is nothing to calibrate or power. This is a reliability advantage over electronic sensors that can drift over time.
Inspect that the float moves freely (check for debris or scaling), then test reed continuity with a multimeter. Because ERECTA SWITCH is modular, you replace only the individual component — switch, float, connector, or fitting — instead of the whole assembly.
Series 10 level switches are rated to 100 PSI; Series 5 flow switches to 200 PSI. Operating temperature depends on the housing material — Polypropylene, Acetal, and Kynar PVDF each have different thermal limits. Contact Compac engineering for your specific conditions.
Our engineering team can verify compatibility with your application and chemistry before you order.