The following tables show standard dimensions for keys and their grooves.
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CLEARANCE HOLE CHART
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Clearance hole chart for inch bolts and screws according to ASME B18.2.8
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One of the earliest forms of comparison. The pigment/binder ratio is the weight ratio of the sum of the pigments...
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Properties of Common Solvents
Density, boiling point, evaporation rate, and flash point of common solvents
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Tip Speed Definition and Formula
Blade Speed (tip speed), measures how far a point on the outer most edge of the disperser blade travels in a given...
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Paint Formulation
Paint consists of four basic components:
Resin
Pigment
Solvent
Additives
The performance of a coating is influenced...
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MixScale - Scale of Agitation
Mix Scale is used to quantify the mixing intensity needed for a given process as well as provide a frame of reference...
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Viscosity Conversion
Viscosity Conversion table comparing some of the typical viscosity scales used in Paint and Coatings including:...
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CLEARANCE HOLE CHART
Clearance hole chart for inch bolts and screws according to ASME B18.2.8
Read more
Pigment/Binder Ratio
One of the earliest forms of comparison. The pigment/binder ratio is the weight ratio of the sum of the pigments...
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Visit the DisperseTech booth #201 at the Eastern Coatings Show November 17-19, 2021.
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Disperser Horsepower Formula
Typical power requirements are in the range of 10 HP per 100 gallons of product.
Of all the "Rules of Thumb" the issues resulting from this pose the most severe issues. While not difficult to calculate, Blade Horsepower, does not correlate well to a simple Volume to power relation. Most disperser manufacuters' rely on a modification of the agitator horsepower relationship:
Np the power number varies with blade type and Reynolds Number.
The mixer power equation works well for predicting power requirements, however, as batch size grows power requirements tend to fall below the 10 hp per 100 gallon rule of thumb. While it is true that retaining all the same ratios a 2 gallon batch will draw more power per gallon than a 2000 gallon batch, typically we need to perform a given amount of work on a product to achieve the desired results. Resulting designs typically require longer batch times with increased volume.
To offset this, we can move to narrower tanks and multiple blades to improve batch times.
Horsepower calculator
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