> Anyone have any idea of the viscosity of honey at 70 degrees F,
> expressed as SSU?

There is no standard viscosity for honey at any given temperature, since
some honey is thixotropic, some is very dry and some has higher
moisture, some is slightly granulated, etc.   Moreover, pumping honey at
70 degrees F is usually not advisable.  Due to the necessary length and
small bore of manageable suction and discharge  lines, and a desire to
pump at a reasonable rate, almost any pump will cavitate and render the
honey cloudy.

Heating the honey  to be pumped to 80 or 90 degrees makes a huge
difference in flow.  For honey at ninety degrees, a two inch (minimum)
intake and outlet hose is desirable.  Smaller sizes (1-1/2") can work,
but 2" is best IMO.  Flexible food-grade hose can be found at dairy
supply outlets, and using Cam-lok fittings on both inlet and outlet
makes moving, and clean-up easier.  Keep the intake hose as short as
possible and be very careful to avoid air leaks in the intake, unless
you want to produce a churned, aerated product.

Ordinary 1" brass gear pumps, driven by a 1/2 HP motor with a 1" pulley
driving a 12" pulley do the job quite well, but Jabsco rubber impeller
pumps are popular, too.

allen
http://www.honeybeeworld.com/diary/
Why Canada should be importing US bees.

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