Aquatics Flow Control Solutions

Flow Control. Life Sustained.

Maintaining Water Quality, Circulation, and System Reliability

Harrington Process Solutions supports Contractors, OEMs, and Facility Operators across aquariums, research institutions, zoos, and commercial aquatics infrastructure with flow control solutions designed to maintain water quality, safeguard aquatic life, and ensure continuous system operation in critical environments.

Aetna Plastics Fabrication – a Harrington® Company – excels in custom plastic solutions for industrial markets. Leveraging their expertise in custom plastic fabrication, they design and manufacture tailor-made solutions to meet the specific requirements of various industries. Harrington’s solutions for aquatic life support aim to create a healthy and stable environment for aquatic organisms, whether in aquariums, aquaculture facilities, or water parks. Harrington is a trusted supplier for the aquatic life industry, offering a wide range of high-quality equipment, materials, and custom components.

Delivered Outcomes

Consistent water circulation and quality
Reduced system interruptions and maintenance risk
Reliable filtration and treatment performance
Long‑term protection of aquatic environments

Why Harrington

Aquatics systems require stable circulation and treatment. Harrington provides:

Application‑specific aquatics expertise
End‑to‑end system support
Reliable national supply excellence

Common Use Cases

Life‑support and circulation upgrades
Filtration and backwash systems
Water treatment and chemical control
New exhibits and facility expansions

Core Capabilities

Circulation & filtration systems
Water quality & chemical treatment
Flow control & isolation
Drainage, waste & backwash systems

Key Products & Solutions

Manual and actuated valves, instrumentation, and accessories supporting reliable system control and monitoring.

Pumping & Circulation Support

Process and circulation pumps with service, repair, and rental support to maintain continuous operation.

Piping & Distribution Infrastructure

PVC, CPVC, stainless, high‑purity, and specialty piping systems supporting process, utility, and circulation networks.

Filtration & Water Quality Protection

Filtration systems and components that protect water quality, equipment, and downstream assets.

Fabrication, Storage & Specialty Systems

Thermoplastic fabrication, FRP products, tanks, and specialty assemblies supporting complex applications.

What Sets Harrington Apart

Proven support of complex aquatic environments
Integrated products and service model

Harrington is proud to support the aquatics industry as a member and sponsor of AALSO, reinforcing our commitment to reliable aquatic life support solutions, technical expertise, and the long-term performance of life-sustaining water systems.

~ Proud to support AALSO

Duraplus Air-line

Duraplus Air-line is a light weight, non-corroding compressed air distribution system manufactured from a specially formulated ABS copolymer blend.

Duraplus Air-line features:

Operational range: designed for a maximum continuous service pressure of 185 psi @ 73°F; any increase in working temperature above 73°F necessitates a corresponding reduction in pressure rating
Corrosion resistant—ensures no loose scale or rust will form on the pipe I.D.
Smooth bore—less friction results in lower pressure drops and higher flow rates
Non-toxic—approved by FDA and USDA
Equally suited to above ground and buried service
Color coded for compressed air (light blue)
100% leak free from a correctly made solvent joint
Easy to handle—1/8th the weight of steel
Quick to join by solvent welding
Speed of installation—no special equipment required
Tough and ductile
Metric sized; equivalent inch sizes are: 20 (1/2”), 25 (3/4”), 32 (1”), 50 (1-1/2”), 63 (2”), 90 (3”), 110 (4”)
6″ & 8″ are IPS-sized, gray in color, with pressure ratings of 180 psi and 145 psi respectively

Molded Grating

Molded fiberglass grating is significantly lighter in weight than metallic gratings and the high resin content (65) provides long, virtually maintenance-free performance. A higher safety factor is achieved by designing in a higher glass content at the bottom of the grating for greater tensile strength.

Molded fiberglass grating is:

Corrosion Resistant
Easy To Fabricate
Fire Retardant
Impact Resistant
Low in Maintenance
Low in Conductivity
Lightweight
Bidirectional Load Bearing
Easy To Install
Cost Effective
Uniform in Appearance
Concave non-slip walking surface

Signet 8900 Multi-Parameter Meter

Features:

Color coded for compressed air (light blue)
100% leak free from a correctly made solvent joint
Easy to handle—1/8th the weight of steel
Quick to join by solvent welding
Speed of installation—no special equipment required
Tough and ductile
Metric sized; equivalent inch sizes are: 20 (1/2”), 25 (3/4”), 32 (1”), 50 (1-1/2”), 63 (2”), 90 (3”), 110 (4”)
6″ & 8″ are IPS-sized, gray in color, with pressure ratings of 180 psi and 145 psi respectively

Compatible Units:

515 Rotor-X flow
525 Metalex flow
2000 Micro-flow
2100 Turbine flow
2350 Temperature
2450 Pressure
2507 Mini-flow
2517 Brass flow
2536 Rotor-X flow
2540 SS flow
2552 Electromagnetic
2750 DryLoc sensor
2850 Conductivity
7000 Vortex flow
8058 Signal converter
8059 External relay module

Large Diameter Piping

Harrington takes pride in its extensive range of Large Diameter Piping solutions, offering a comprehensive inventory of pipe and fittings in PVC schedule 40 and 80. These large diameter piping systems are readily available in sizes up to 24 inches in diameter, ensuring a wide selection to meet various industrial and commercial needs. PVC schedule 40 and 80 are widely recognized for their excellent chemical resistance, making them ideal for transporting a wide range of fluids and materials across industries. With a commitment to customer satisfaction, Harrington ensures that these large diameter piping solutions are always in stock and ready for immediate delivery.

Asahi Type 56 & 75 Butterfly Valves

Outstanding abrasion resistance at elevated temperatures
Ideally suited for throttling highly corrosive chemicals
Bubble-tight seating
Non-wetted 316/403 stainless steel shaft.T-handle operating nuts or tandem arrangements
Style 56 sizes: 1-1/2″- 16″, Style 75 sizes: 18”- 24” (not shown)
Lever handle: 1-1/2″- 8″, gear operator: 8″- 24″
Models: wafer style (for ANSI, full face, flat flanges)
Style 56 bodies: PVC, PVDF and polypropylene
Style 75 bodies: PVDF and polypropylene
Discs: polypropylene, PVDF
Seats/seals: EPDM, Viton, nitrile (Buna N), butyl, Hypalon®, silicone, neoprene
Actuators: electric, pneumatic