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About

Harrington Process Solutions LLC, founded in 1959 and headquartered in Chino, California, is one of North America's largest value-added distributors of flow-control products for corrosive and high-purity applications, operating from more than 89 locations nationwide. The company stocks over 300,000 products spanning pipes and fittings (pressure, acid waste, double containment, and metal flanges in plastic and metal materials), valves (true union ball, compact ball, 3-way ball, butterfly, diaphragm, solenoid, check, control, gate, and globe types with actuators and accessories), filtration and separation systems (cartridges, housings, bag filters, strainers, and basket filters), tubing and hose, instrumentation (level, flow, pH, ORP, conductivity, resistivity, pressure, temperature, and chlorine sensors with controllers and transmitters), tanks and accessories (vertical, horizontal, cone-bottom, rectangular, double containment, and RTP1-rated bulk storage), pumps (centrifugal, diaphragm, peristaltic, metering, drum and barrel, hand-operated, and gear-driven), and sheet, structural, and grating products. Through integrated brand subsidiaries—Aetna Plastics (NSF-certified custom fabrication and machining), PumpMan (on-site pump service and repair), Crist Group and Cortrol Process Systems (FRP corrosion-resistant products), J2 Resources (oil and gas flow control), Fluid Gauge (industrial and sanitary piping), and Commercial Pipe and Supply—Harrington provides full lifecycle support from design through maintenance. The company serves water treatment, semiconductor, data center, life sciences, food and beverage, chemical, petrochemical, metal finishing, mining, and pulp and paper markets with 24/7/365 expert engineering support and tailored supply chain solutions.

Key Products

Pipes and Fittings

Comprehensive range of pressure pipe, acid waste pipe, double containment pipe, and associated fittings in plastic and metal materials for fluid handling systems.

Valves and Accessories

Full line of flow-control valves including true union ball, compact ball, 3-way ball, butterfly, diaphragm, solenoid, check, control, gate, and globe valves with actuators and accessories.

Filtration and Separation

Filter cartridges, housings, bag filters, strainers, and basket filters for particle removal and process stream protection.

Tubing and Hose

Flexible tubing and hose products with compatible fittings and clamps for chemical transfer and process fluid conveyance.

Pumps

Centrifugal, diaphragm, peristaltic, metering, drum and barrel, hand-operated, and gear-driven pumps for chemical and process fluid transfer.

Instrumentation

Level, flow, pH, ORP, conductivity, resistivity, pressure, temperature, and chlorine sensors along with controllers and transmitters for process monitoring.

Tanks and Accessories

Vertical, horizontal, cone-bottom, rectangular, and double containment bulk storage tanks with RTP1 rated options and associated accessories.

Sheet, Structural and Grating

Fiberglass reinforced plastic sheet, fabrication stock, structural shapes, and grating for corrosion-resistant construction and walkway applications.

Custom Plastic Fabrication (Aetna Plastics)

NSF-certified custom fabrication and machining of thermoplastic components for commercial and industrial process applications.

Valve Actuation and Automation

Electric and pneumatic actuator installation and automation services for valve remote operation and control integration.

Pump Service and Repair (PumpMan)

On-site and off-site pump maintenance, repair, and lifecycle support services for all pump types in water and wastewater systems.

FRP Products (Crist Group)

Non-metallic corrosion-resistant fiber-reinforced polymer products for harsh chemical and environmental service conditions.

Chemical Feed Systems

Integrated chemical dosing and feed systems including metering pumps, day tanks, and accessories for water and wastewater treatment.

Service Area

National coverage

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