a r n o l d EQUIPMENT COMPANY phone: - fax: 18 in. SPROUT-WALDRON ROTARY AIR LOCK - C/S 1 - used Sprout-Waldron Rotary Airlock With 18 in. x 20 in. square flanges Unit is driven by a 3 HP 3/60/230-460 gear-head motor drive Valve has outboard bearings, packing glands and adjustable wipers |