Low flow trim set for Series 5. Converts standard 5-20 to low flow operation. Includes low-flow spring and poppet. Polypropylene handles water, water-based coolants, soaps, detergents, and dilute acid/alkaline solutions.


| Quantity | Price |
|---|---|
| 1–9 | $23.30 |
| 10–24 | $21.38 |
| 25–49 | $18.52 |
| 50–99 | $16.42 |
| 100–199 | $14.88 |
| 200+ | $12.42 |
The 5-20-LFT-PP is the low flow trim set in polypropylene that converts a standard 5-20 angle body flow switch to low-flow operation. Includes the low-flow spring and calibrated poppet. Install in an existing 5-20-PP body via the clean-out port.
| Specification | Value |
|---|---|
| Series | 5-20-LFT |
| Type | Low flow conversion trim set |
| Compatibility | 5-20 Angle Body Flow Switch (all materials) |
| Setpoint (spring in) | 0.042 GPM |
| Setpoint (spring removed, vertical) | 0.008 GPM |
| Materials | Polypropylene |
The 5-20-LFT-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-LFT-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-LFT-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.