ERECTA SWITCH® by Compac Engineering
Series 5 · ERECTA SWITCH®

5-20-LFT-PP — Low Flow Trim Set — Polypropylene

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.

5-20-LFT-PP Low Flow Trim Set — Polypropylene

Configure & Order

Material
PP — Polypropylene
SKU: 5-20-LFT-PP
Qty
In stock · Ships Wednesday · Made in Paradise, CA · No minimum order
Also Available
Net Price — per unit
QuantityPrice
1–9$23.30
10–24$21.38
25–49$18.52
50–99$16.42
100–199$14.88
200+$12.42
As low as $12.42 · OEM pricing for 1000+ quoted upon request.

Product Description

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.

SpecificationValue
Series5-20-LFT
TypeLow flow conversion trim set
Compatibility5-20 Angle Body Flow Switch (all materials)
Setpoint (spring in)0.042 GPM
Setpoint (spring removed, vertical)0.008 GPM
MaterialsPolypropylene

What Makes the 5-20-LFT-PP the Right Choice

Converts 5-20 to low-flow detection
Drop-in trim set converts any standard 5-20 to ultra-low flow detection. Install via the clean-out port.
Fixed low-flow calibration
Spring in: 0.042 GPM. Spring removed + vertical mount: 0.008 GPM. No setpoint selection — calibration is fixed.
ERECTA SWITCH modular architecture
Every component is independently field-replaceable. Poppets, fittings, and trim sets service individually — no need to replace the entire switch body.
Polypropylene construction
Handles water, water-based coolants, soaps, detergents, and dilute acid/alkaline solutions. For solvents or stronger chemicals, see Acetal or Kynar PVDF variants.
Hermetically sealed reed switch
SPST N.O., closes on flow. 70 VA / 50W resistive. 0.5A AC / 0.7A DC. 300 VAC / 350 VDC maximum. No mechanical contact with liquid. Inductive loads such as solenoid and relay coils require external arc suppression; above the rating, isolate the load with a Series 50 relay.
RoHS compliant · Made in USA
Every Series 5 switch manufactured in Paradise, California. RoHS compliant throughout. No minimum order.

Where the 5-20-LFT-PP Is Specified

Frequently Asked Questions

Common Questions About This Product

What liquid chemistries is the 5-20-LFT-PP compatible with?

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. Most ERECTA SWITCH models are offered in all three materials; some are material-specific, so check the product page for the model you need.

What factors should I consider when choosing the 5-20-LFT-PP?

Consider media chemistry (pick PP, AC, or KR), liquid specific gravity, operating temperature and pressure, mounting style, number of switch points, and electrical contact rating. Compac will spec it from your application — request a free evaluation sample.

What makes ERECTA SWITCH different from other switches?

It is the only fully modular, off-the-shelf liquid level switch system: switch, float, connector, fitting, and nipple are independently field-replaceable and stocked. OEMs configure exactly what they need with no minimums and short lead times. Made in Paradise, California; RoHS compliant.

Can I order individual ERECTA SWITCH replacement components?

Yes. The 5-20-LFT-PP is available as an individual, stocked part — no need to replace the entire switch assembly. ERECTA SWITCH is a fully modular system: switch, float, connector, fitting, spacer, and nipple are all orderable separately with no minimums. This reduces repair cost and downtime for OEM field service.

Are ERECTA SWITCH components interchangeable across models?

Yes — modularity is the core of the ERECTA SWITCH system. The 5-20-LFT-PP is designed to work across multiple Series 10 configurations. Floats, connectors, spacers, and fittings share standard interfaces, so one stocked component serves many switch assemblies. Check the model number to confirm compatibility.

How do I identify which ERECTA SWITCH component I need?

Each component has a unique model number (e.g., 5-20-LFT-PP) that identifies its type, material, and function within the assembly. Contact Compac with your switch model number and the part you need to replace — or request a free evaluation sample to confirm fit before ordering production quantities.

Questions About This Product?

Our engineering team can verify compatibility with your application and chemistry before you order.