USED: WM Meyer and Sons rotary air lock,...
USED: WM Meyer and Sons rotary air lock, model 6X6HD, stainless steel.6" diameter x 6" wide, approx 6 vane closed rotor. (.07) cubic feetdispersed per revolution. 6" diameter inlet/outlet, 11" diametermounting flange. Driven by a 1/3 hp DC gearmotor.
and the product is still available,