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0319 • Form No. 0153937D

INSTRUCTION SHEET

PROPURGE

 LPA (LOW PRESSURE) SPRAY GUN

SAFETY INFORMATION

NEVER ATTACH THIS SPRAY GUN TO 

EQUIPMENT CAPABLE OF MORE THAN 

145 PSI STATIC FLUID PRESSURE!

IN THE EVENT OF LEAKAGE, REPLACE 

GUN IMMEDIATELY!

READ THE HELIX LP MAIN UNIT 

OPERATING MANUAL BEFORE USE!

Before setting up or using the ProPurge™ low pressure spray 

gun, read and understand all of the safety instructions in the 

main operating manual.  

• 

Follow all material manufacturer’s safety warnings.

• 

Always use proper personal protective equipment (PPE) 

when working with dual component spray chemicals.

• 

Follow all necessary precautions to avoid dangerous 

spray conditions when spraying in enclosed areas.  

Ensure sufficient ventiliation and eliminate any potential 

flame/spark sources.  

• 

Do not overfill enclosed spaces or build foam beyond 

the material manufacturer’s recommended depth.

• 

Refer to the main unit operating manual for a full list of 

equipment and chemical warnings. 

PARTS AND COMPONENTS

B side hose (Resin)

Nozzle

retaining

ring

Maze 

Nozzle™

Trigger

A side

hose (ISO)
Air hose

Trigger

safety

i

ProPurge™ LPA gun and Maze Nozzle™ patent pending.  

SETUP

Make sure the material ball valves on the Helix LP unit are 

shut off.  
Make sure the material ball valves on the whip hoses are in 

the closed position for removing/attaching the spray gun.

1. 

Make sure the material supply hoses as well as the air supply hose are 

properly connected to the main unit (refer to main unit Operating 

Manual).  

2. 

Attach the dual heated hose assembly from the main unit to the spray 

gun.

 

a.  Attach the heated A side hose (marked in red) with ball valve to 

the corresponding A side hose (marked in red) on the spray gun.  

Tighten with a wrench.

 

b.  Attach the heated B side hose (marked in blue) with ball valve to 

the corresponding B side hose (marked in blue) on the spray gun.  

Tighten with a wrench.

 

c.  Attach the air hose (unmarked) to the corresponding air hose on 

the spray gun.  Tighten with a wrench. 

a

c

b

3. 

Attach the desired Maze Nozzle™.  

i

A round nozzle (red) will give a round pattern, creating 

heavier coverage over a smaller area.

 

a.  Twist the nozzle retaining ring towards the “unlock” symbol.  

 

b.  Align the tabs on the nozzle with the open slots in the barrel.   

 

c.  Insert the nozzle into the orifice.

 

d.  Twist the nozzle retaining ring towards the “lock” symbol to secure 

the nozzle into place.

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