Magnum Venus Plastech PATRIOT TESTING & ADJUSTING - Manual (Page 19)

Patriot - Testing & Adjusting Manual
Rev. 01/2013 Page | 19
Establishing a Spray Fan:
If you know what is happening on both the upstroke and down stroke of the pump you
will know where to look when you have a problem. Adjusting your pumping system will
be easier with some understanding of pump ratios and fluid pressure.
Adjusting & Establishing a Fan Pattern
Magnum Venus Plastech spray equipment provides one of the most efficient methods of
quickly applying material to a surface or mold. To make the most of our low-pressure
metering systems and airless, internal mix guns, the operator must understand how to
adjust the system for maximum efficiency.
Note: Because conditions and material vary widely, we cannot give you specific
instructions for every material. We do offer guidelines and tests so that you can
tune your Magnum Venus Plastech equipment to meet your needs.
The basic idea is to use just enough pressure to the power head to establish the spray
fan, and no more.
1. Lay out a strip of material for the test. For testing the material can be paper or
cardboard.
2. Adjust the main pressure regulator until the operating pressure is 20psi.
Definition: Operating Pressure is the air pressure used to operate the air motor
attached to the resin pump. The gauge and regulator are usually labeled “Main
Pressure” or “Pump Pressure”.
3. Do a short test spray on the material.
Note: To save material and make identification easier, spray perpendicular
(across the material strip) tests.