A wastewater treatment plant with cylindrical tanks, metal pipes, and railings hosts a person in protective gear managing the industrial equipment.

Polychem NH-78 Drive Chain

Brentwood’s Polychem NH-78 Drive Chain is used to drive flocculators, screw conveyors, chain and flight collectors, and a range of other low-speed applications. Injection molded from glass-reinforced nylon, NH-78 is strong, lightweight, and resistant to corrosion and chemical damage. This non-metallic replacement for heavy metal chains is simple to install and maintain without special tools. Our drive chain can also be protected with barrel wrap for high grit or highly caustic conditions. By reducing barrel wear, the chain lasts longer and performs better.

Close-up of a Polychem® NH-78 Drive Chain with thick, interconnected links and visible metal pins at the joints, designed for heavy-duty machinery or conveyor systems.

Features

Integrally molded chain links eliminate wear

Material optimizes strength & reduces stretch

Resistant to UV and chemical damage

Standard 10’ pre-assembled lengths available

Navigate Within Drive Unit Assembly

Specifications

English Metric

Series	Pitch inches	Average Weight Per Ft lbs	Working Load Lbs-f	Pin Diameter inches	Link Material	Pin Material
NH-78	2.609	1.25	1740	0.375	GLASS REINFORCED NYLON	303 SS

Series	Pitch mm	Average Weight Per Ft kg	Working Load Kn	Pin Diameter mm	Link Material	Pin Material
NH-78	66.27	0.57	7.74	9.5	GLASS REINFORCED NYLON	303 SS

A close-up view of industrial machinery with cogwheels, head shafts, and a chain, all shown in a blue-tinted color scheme.

System Animation

Learn how all the components in a standard Polychem system are assembled and installed.

Articles & Literature

Rectangular clarifier systems

Rectangular vs. Circular Clarifiers: What is the Best Option?

Clarifiers are crucial in water and wastewater treatment processes as they help separate solid particles from liquids. However, selecting the right type of clarifier can be a daunting task. This article will compare the two most commonly used clarifier shapes, rectangular and circular, to help you decide which is best for your application.

Literature

Polychem Chain & Flight Brochure Polychem Field Services

Water & Wastewater Treatment Products

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