Lafferty Learning Center

Entryway Foam Sanitizers – Configuration Summary

This post summarizes the Lafferty Entryway Learning Series.

If you accessed this page directly, consider starting with the Introduction to Lafferty Entryway Foam Sanitizers.

Refer to the full Venturi Entryway Guide and Pump Fed Entryway Guide for detailed selection assistance, pictures, product links, and more.

Table of Contents

All entryway configurations are available for:

• 3′ wide walk doors (standard)
• Up to 6′ wide double doors (MV)
• Up to 16′ wide overhead doors (HV/XV)

Models for larger doors require a Spreader Nozzle on each side of the doorway, while a single nozzle achieves full coverage for smaller doors.

Venturi
vs.
Pump Fed

Dilute concentrated chemical on-demand at each doorway or pump ready-to-use chemical from a central location.

Timed
vs.
Satellites

Operate independent units or activate several satellite units simultaneously.

Timed Controller
vs.
PLC Controller

Satellite units only. Activate satellites with a simple repeating timer or an advanced controller.

VENTURI

Venturi Entryway Foam Sanitizers use water pressure to dilute chemicals “on-the-fly” from concentrate located at the entryway.

Timed Venturi

Each entryway unit includes a control box and operates independently.

Standard Timed Configuration

Simple timer settings apply foam at regular intervals.

Optional Upgrades for Timed Configurations

Activate with a remote push button or electric eye (photocell).

Satellite Venturi

A controller simultaneously activates several satellite entryway units.

Choice of Single-Zone Controller

Timed Controller with simple repeating timer.

PLC Jazz Controller with highly flexible programming options.

PUMP FED

Pump Fed “PF” Entryway Foam Sanitizers receive ready-to-use chemical from a central feed system.

PF Timed

Each entryway unit includes a control box and operates independently.

Standard Timed Configuration

Simple timer settings apply foam at regular intervals, with manual override.

Optional Upgrades for Timed Configurations

Activate with a remote push button or electric eye (photocell).

PF Satellite

A controller simultaneously activates several satellite entryway units.

Choice of Single-Zone Controller

Timed Controller with simple repeating timer.

PLC Jazz Controller with highly flexible programming options.

PF Vision Satellite

A controller activates “Vision” satellite entryway units in zones.

PLC Vision Multi-Zone Controller

Highly flexible programming options for up to six independent zones.

SPECIALTY

Lafferty manufactures Entryway Foam Sanitizers for challenging situations that can’t be addressed by a standard Venturi or Pump Fed Entryway.

Contact us to discuss your unique HACCP needs and available utilities.

Air Pump Driven

Low or wildly fluctuating water pressure?

Venturi Air Pump Entryway models connect to water supplies with pressure as low as 10 PSI.

An internal float tank with pump boosts water pressure to dilute chemical on demand and project foam.

No water pressure?

Pre-Dilute “PD” Air Pump Entryway models draw ready-to-use chemical from any container. No water supply required – great for remote locations.

Airless Foamers

No compressed air required!

Wet, clinging “airless” foam is created by Lafferty Airless Foam Wands instead of injecting compressed air.

Each Airless Entryway model includes two chemical pickup assemblies – one for sanitizer/disinfectant and another for foaming additive (if required).

Related Information

Entryway Learning Series

  1. Introduction & Overview
  2. Venturi Selection Guide
  3. Pump Fed Selection Guide
  4. Configuration Summary
  5. Installation Guide (Coming Soon!)
  6. Operation & Troubleshooting Guide (Coming Soon!)
  7. Programming Guides (Coming Soon!)

Planning Tools

We look forward to learning about your HACCP situation and recommending the best equipment for the job.

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