Honey Pressure Filter

01 · 0.18 MM OF OPENING, NOT 0.4

Mesh, wire and aperture are three things

The inner cartridge carries a steel mesh with a 0.4 mm pitch and 0.22 mm wire; subtract and the free aperture is 0.18 mm, about 180 microns, which matches an 80 mesh screen. It is a fine filtering: it holds back what a harvest strainer lets through.

It is worth being clear about this because catalogues mix the three figures and they do not mean the same thing. For other apertures, the maker makes them to order.

02 · IT WANTS PRESSURE AND FLOW

Plugging it into any pump is not enough

It works with liquid honey that has already been pre-filtered, pushed by a helical pump or any pump giving at least 6 kg of pressure; lobe pumps at high pressure will also do. With less pressure the honey does not cross the mesh and the filter turns into a plug.

And there is a handling rule that is not obvious: you have to send it the whole flow at once, not a steady trickle. In practice that means a level detector that starts the pump once a minimum amount has built up to send through.

03 · DIN NUTS, NOT INCLUDED

What to order besides the filter

Inlets and outlets are chosen in 2 inch or 1½ inch thread. Neither the fittings nor the hose come with it: you need a DIN nut and liner for each coupling, and there are two.

It is made of 304 stainless steel and is 50 cm long, so besides the threads you have to find it room: it mounts in line, after the pump and before the destination tank.

04 · BEFORE YOU BUY

A final polish, not a harvest filter.