Amwell – Div. of McNish Water
About
Amwell, established in 1868 and operating today as a division of McNish LLC alongside Walker Process Equipment (1946) and E&I Corp (1975), is among the longest-standing water and wastewater treatment equipment manufacturers in the United States, with over 150 years of continuous operation and more than 1,000 successfully executed projects. Amwell manufactures a broad range of headworks and clarification equipment, including stainless and carbon steel bar screens in widths from 1.5 to 7 feet and depths up to 30 feet, rectangular collectors spanning up to 30 feet wide by 250 feet long with metallic or non-metallic Hydrolink chain and fiberglass flight options, and circular clarifier mechanisms. Their grit removal systems are offered in both aerated and non-aerated configurations with chain-and-flight collectors, dewatering screws, chain-and-bucket collectors, elevators, and circular grit collectors. Rotary distributors feature two, three, and four-arm designs up to 150 feet in diameter with Multiflo automatically adjustable brass orifice nozzles and an exclusive ball joint manifold connection. Additional product lines include paddle flocculators in horizontal and vertical configurations, scum skimmers, telescoping valves for sludge draw-off, and rugged cast iron gear drives with 360-degree gear support and one-piece alloy steel worm shafts — over 2,500 gear drive assemblies have been installed to date. Amwell equipment serves municipal and industrial water and wastewater treatment facilities, consulting engineers, and plant operators worldwide.
Key Products
Mechanical drive systems for rectangular sedimentation tanks that scrape settled sludge to a hopper and skim floating material, used in primary and secondary clarification.
Rotating sludge collection and skimming mechanisms for circular sedimentation tanks in water and wastewater treatment plants.
Coarse screening devices that remove large debris and solids from incoming wastewater to protect downstream treatment equipment.
Equipment that separates heavy inorganic grit from wastewater using velocity-controlled settling chambers.
Devices that wash and dewater grit removed from wastewater to reduce organic content and volume before disposal.
Rotating distribution arms that evenly distribute wastewater over trickling filter media for biological treatment.
Adjustable-depth overflow valves used to control water levels and draw off clarified effluent or scum from treatment tanks.
Mechanical mixing devices that promote particle aggregation (flocculation) by gentle agitation to form settleable flocs prior to sedimentation.
Scum and floatables removal devices that skim floating material from the surface of clarification tanks.
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