Pump Fed Airless Foamer

Lafferty Equipment Manufacturing, LLC

Installation & Operation Instructions

Model # 920905 · Pump Fed Airless Foamer

Requirements

Ready-to-Use Chemical Solution
Temperature up to 160°F
Pressure 35 to 125 PSI
Flow 1.7 GPM @ 40 PSI
Supply Line 1/2"
Hose 1/2" ID x 50'
Nozzle A-25SS Airless Foam Wand

Options

Stainless Steel Hose Racks
Large Stainless Steel Hose Rack# 224150
Strainer
Strainer, "Y", SS, 1/2" MF# 150350-1

Weight & Dimensions

Single Package
Shipping Weight16 lbs.
Shipping Dimensions28" x 19" x 8"
920905
AF--SSWand_wSSOBV.jpg
Lafferty Equipment Logowww.laffertyequipment.com
501-851-2820
Warning! Read All Instructions Before Using Equipment!

Overview

The Pump Fed Airless Foamer is a medium volume foam applicator for projecting foaming chemicals on to any surface up close or at distances up to 6 feet without compressed air.  This unit receives ready-to-use chemical solution from a central chemical feed system and projects it through the discharge hose to the "airless" foam wand which draws in atmospheric air to create and project wet, clinging foam.

Lafferty Equipment Manufacturing, LLC • 8504 Mac Arthur Drive • North Little Rock, Arkansas 72118

Safety & Operational Precautions

  • For proper performance do NOT modify, substitute nozzle, hose diameter or length.
  • Manufacturer assumes no liability for the use or misuse of this unit.
  • Wear protective clothing, gloves and eye-wear when working with chemicals.
  • Always direct the discharge away from people and electrical devices.
  • Follow the chemical manufacturer’s safe handling instructions.
  • Turn off solution supply when unit is not in use for extended periods.

To Install (refer to diagram on next page)

  1. Mount the unit to a suitable surface.
  2. Connect the discharge hose as shown in the diagram and close the ball valve.
  3. To prevent blocking the small jets flush any new plumbing of debris before connecting. And/or install a strainer. (see options)
  4. Connect pre-mixed solution supply line.

To Operate

Always make sure the discharge is closed or pointed in a safe direction before turning inlet valve on. Discharge can be shut off at any time during operation but should not be left off for long periods of time with the inlet valve on.

  1. With discharge wand in hand open the inlet ball valve. Then open the discharge ball valve to begin application.
  2. When foaming is completed, close the discharge ball valve then close the inlet ball valve.
  3. Briefly re-open the discharge ball valve to relieve pressure in hose. If applicable rinse the work surface before solution dries.

Unit Flow Rates

PSIGPM
351.59
401.70
501.90
602.08
702.25
802.40
902.55
1002.69
1102.82
1202.94
1253.01
920905.jpg
Troubleshooting Guide
Problem Possible Cause / Solution
StartupMaintenance
A) Weak pressure and/or low volume output
B) Foam does not clean or foam properly		1, 2, 3, 4
5, 6		 7, 8
8, 9
Possible Cause / Solution
StartupMaintenance
  1. Inlet or discharge ball valves not completely open
    • Completely open both ball valves.
  2. Solution pressure or volume too low/inlet piping too small.
    • Increase solution pressure or volume.
  3. Discharge hose too long for available solution pressure, kinked or wrong size
    • Straighten the hose or replace hose.
  4. Nozzle size too small (SEE REQUIREMENTS)
  5. Improper chemical or solution too weak
    • Ensure product is recommended for foaming and/or the application. Increase chemical concentration.
  6. Soil has hardened on surface; always rinse before chemical dries
    • Reapplication may be necessary.
  1. Inlet orifice clogged
    • Check/clean inlet orifice for obstructions.
  2. Hard water scale or chemical build-up may have formed in the body causing poor or no flow
    • Follow Preventive Maintenance instructions below, using hot water and/or de-scaling acid. When there is no flow at all, carefully remove fittings and soak entire body in de-scaling acid.
  3. Foam wand clogged or scaled up / wrong nozzle
    • Hard water scale or chemical build-up may have formed, soak entire foam wand in de-scaling acid / see requirements.
PREVENTIVE MAINTENANCE: When the unit will be out of service for extended periods, run water through the system to flush the chemical and help prevent chemical build-up.