ENVIREX® HEAVY-DUTY CHAIN & SCRAPER
SLUDGE COLLECTOR SYSTEMS
EVOQUA IS THE LEADER IN HEAVY-DUTY SLUDGE COLLECTORS
The Envirex® heavy-duty sludge collector system is Shafting - Head
designed for long-lasting performance in the toughest Metallic: Solid construction up to 25 ft
applications. Advanced materials and high strength (7.6 m) or torque tube up to 30 ft (10 m),
components provide longer life and reduced wear to address keyed to suit. Available in carbon or
elevated load and grit applications. Evoqua has more than stainless steel.
100 years of experience in clarification technologies and
services with a wide range of options, material choices and
sizes to meet your new construction or retrofit needs.
Heavy-Duty Carrier Chains
Envirex ENV715 Chain: Provides excellent
strength and corrosion resistance with
Series 400 stainless steel with hardened
pins and bushings. Suitable for applications
with elevated grit levels or sludge loads where a stronger,
more robust chain is required. Especially suited for plants
using stacked (double deck) collectors where the collectors
can‘t be visually inspected or easily accessed.
Envirex HS730 Chain: Constructed out of
high-strength composite materials, Loop
Chain is suited for collectors that are
heavily loaded. It is the only nonmetallic
collector chain that offers strength nearly
equal to cast and stainless steel chain at a fraction of the
weight. Stainless steel flight attachments and rollers are
available for extreme conditions.
Heavy-Duty Fiberglass Scraper Flights
Envirex scraper flights are pultruded out of fiberglass for
consistent shape, quality and performance. The fiberglass
is totally encapsulated in a water resistant resin to prevent
wicking, ensuring the flights remain strong and stiff.
Available in 3 inch by 6 inch and 3 inch by 8 inch to match
existing mounting hole patterns.
Sigma Plus Flights: The transverse
concave indentation provides 60% greater
structural support compared to channel Shafting - Corners
flights. It can also be installed in collectors Full width: Solid construction for use in
up to 25 feet (7.6 m) wide. either live (in bearings) or static (fixed, not
Diamond Flights: This high strength flight rotating) applications. Available in carbon
can handle heavy sludge loads or be used or stainless steel.
in tanks up to 32 feet (10 m) in width. Stub shaft: Cast iron tripod with extendable
This special design gives it exceptional metallic stub end to accommodate tank
resistance to deflection and twist. wall irregularities. Fabricated heavy-duty
stainless steel for extreme duty.
Collector Sprockets Return Tracks
Stainless Steel: Bolt on segmental rim split Angles: Wall mounted supports with
sprockets with chain saver rim for extreme replaceable UHMW PE wear strip for low
service conditions. friction and extended service life for flight
Non-metallic: Split construction for easy wear shoes and support rails. Non-metallic
installation integrally molded hubs, tooth wall brackets are adjustable in the field to
profile and chain saver rim for optimum integrity ensure proper flight tracking along the collector basin.
and strength. Available in fiberglass, carbon or stainless steel.
J-Track: Named for the unique shape of
the main stainless steel structural member,
this special configuration eliminates
twisting and bowing for track lengths up to
20 ft (3 m). The UHMW wear strip is not
needed.
Wearing Strips
Floor: The Envirex® wear strip system is
attached directly to the tank floor to
conform to rough concrete surfaces and
uneven expansion joints. Manufactured
out of UHMW PE or stainless steel for low
friction.
C-Rail: The floor-mounted version of the
wear strip. T-shaped cleats accommodate
the special wear strip, maximizing the
effective wear shoe.
Wearing Shoes
UMHW, polyurethane, or hardened steel
wear shoes mounted to the flights to
minimize wear and friction.
Driver: Non-metallic teeth on a 316SS hub
with torque overload protection. Drive Chain
Driven: Non-metallic or metallic, both with Envirex ENV78 chain constructed with
split construction for easy installation. Series 400 stainless steel with hardened
Dished to accommodate wall bearings and pins and bushings and 316 SS cotter pins.
to avoid contact with flights. Replaceable or integral teeth This chain is suitable for applications with
are available. elevated grit levels or sludge loads where a stronger, more
Materials: Teeth in polyurethane, cast nylon, or UHMW robust chain is required.
Dished or flat bodies available in polyurethane, cast nylon,
cast iron, or fabricated steels.
We offer complete installation and after-sales services to
help you protect your investment.
• Our experienced field service personnel—the largest
group in the industry—can handle a complete upgrade,
or do portions of it assisted by your personnel.
• We can handle the installation of new collectors,
as well, working with your contractors or others.
They can perform annual inspections, advise on
inventory requirements and, of course, be on-site for
emergencies.
• We can upgrade or retrofit any manufacturer’s sludge
collector with new, non-metallic components. The
renovated collector will run smoother and require far
less maintenance than the original.
• For replacement parts, we have the most extensive
inventory in the business, and can ship from stock
immediately when required.
2607 N. Grandview Blvd, Suite 130, Waukesha, Wisconsin 53188
+1 (866) 926-8420 (toll-free) +1 (978) 614-7233 (toll) www.evoqua.com
Envirex is a trademark of Evoqua, its subsidiaries or affiliates, in some countries.
All information presented herein is believed reliable and in accordance with accepted engineering practices. Evoqua makes no
warranties as to the completeness of this information. Users are responsible for evaluating individual product suitability for specific
applications. Evoqua assumes no liability whatsoever for any special, indirect or consequential damages arising from the sale, resale or
misuse of its products.
© 2017 Evoqua Water Technologies LLC Subject to change without notice MU-HD-CS-BR-0917
