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

Polychem® Collector Chain

Brentwood's Polychem NCS-720-S Collector Chain is among the strongest 720-series chains on the market. Precision molded from durable, glass-reinforced polyester, this lightweight chain withstands high sludge loadings in corrosive environments. Our collector 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.

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Features
Integrally molded chain links eliminate wear
Resistant to UV and chemical damage
Standard 9.5’ lengths for longitudinal collectors
Standard 4.5’ lengths for cross collectors
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Specifications

English Metric
SeriesPitch
inches		Average Weight Per Ft
lbs		Working Load Lbs-fPin Diameter
inches		Link MaterialPin MaterialClip Material
NCS-720-S
6.1
1.5
3100
0.866
Glass Reinforced Polyester
Glass Reinforced Nylon
ACETAL
SeriesPitch
mm		Average Weight Per Ft
kg		Working Load KnPin Diameter
mm		Link MaterialPin MaterialClip Material
NCS-720-S
152.4
0.68
13.7
22
Glass Reinforced Polyester
Glass Reinforced Nylon
ACETAL
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.

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Complementary Components

GritShield® Barrel Wrap
Non-Acetal/H2S Resistant
Connecting Pin & Retaining Clip
GritShield® Barrel Wrap

The GritShield® barrel wrap collector chain option increases chain life by reducing barrel wear. It is made of durable 301 SS for high grit conditions and is available in 316 SS for highly caustic conditions.

Non-Acetal/H2S Resistant

The H2S acid-resistant collector chain option is a 100% non-acetal chain. It prevents clip erosion from sulfuric acid and is specifically designed for covered primary clarifier tanks.

Connecting Pin & Retaining Clip

The twist-snap pin and clip design is easy to install without special tools, and locking T-heads prevent pin rotation. The clip’s contrasting color also simplifies field inspection.
System Animation

Close-up image of a black mechanical component with multiple linked sections and visible blue accents. The links are connected by cylindrical pins, forming a collector chain-like structure. Close-up of a black mechanical linkage system with yellow accents. The collector chain structure features interconnected rotating joints and cylindrical components. A black cylindrical tool with square ends lies next to a small blue plastic U-shaped clip, resembling a collector chain component, on a white background.

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.
Read Article
Literature
Polychem Chain & Flight Brochure Polychem Field Services

Water & Wastewater Treatment Products

an image showing three head shafts
Head Shafts
Two dark steel chamfer-style weights with cylindrical tops and wider, tapering bases resemble stub shafts. The weights are uniform in color with a smooth, matte surface finish.
Stub Shafts
an image showing a close up of a sprocket for PolyChem Systems
Sprockets
Close-up view of multiple metal channel sections, displayed in varying angles. The channels, likely made of steel or aluminum, exhibit smooth, reflective surfaces and sharp, clean edges
Flights
A blue motorized mechanical device, known as a drive unit assembly, is mounted on a concrete surface with bolts. It connects to a chain and sprocket system adjacent to a metal frame.
Drive Unit Assembly
A close-up of water flowing over a weir at a wastewater treatment plant. The image shows sediment and debris, part of the scum removal process, on the water surface as it moves over a red and brown barrier before falling into a lower section. The structure is surrounded by concrete.
Scum Removal
A shield emblem with the letters "SG" is at the center of the image. "SMARTGUARD" stands out in large, bold letters, while "COLLECTOR MONITORING SYSTEM" appears in smaller text beneath it. The background features a wavy, abstract pattern in dark and light shades.
SmartGuard®
A worker wearing a high-visibility vest and a hard hat is standing in an industrial setting, using a tape measure to gauge a section of a large pipe.
Field Services
Abstract image featuring a minimalist design of white and light gray geometric shapes. The background has a subtle gradient, creating a clean and modern aesthetic.
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