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About Us

Wm. H. Reilly & Company is a leading provider of processes, process equipment, piping, valves, controls and components for Water Treatment, Wastewater Treatment, and Water Reuse and Collection Systems in the Pacific Northwest, and Alaska.

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Where to Find Us

(503) 223-6197
whrco@whreilly.com
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Our Products

Our Products

Flow Control & Valves

ProductDescriptionManufacturers

Specialty Water Control

Includes telescoping valves, automatic siphons, and hydrostatic pressure relief valves.McWane MPI

H-30 Cast Iron Line Gates

Pipeline-installed line gates that eliminate the need for capped stands or standpipes.McWane MPI

Gate Lifts & Controls

Manual and automated lifting systems engineered to meet or exceed AWWA standards.McWane MPI

Canal Gates

Durable canal and pipeline gates designed for long-term service life exceeding 40 years.McWane MPI

Tilting Weir (Overshot) Gates

Overflow-type gates used to control water levels in canals, basins, and industrial applications.McWane MPI

Large Custom Gates

Specialty gate solutions engineered for unique requirements from treatment plants to dams and ditches.McWane MPI

Flap Gates

A broad range of flap gates designed for reliable performance across diverse applications.McWane MPI

Stop Logs & Stop Gates

Simple and economical solutions for stopping flow or regulating water levels in channels and canals.McWane MPI

Radial Gates

Overflow or breastwall-style radial gates engineered for standardized or custom applications.McWane MPI

Rectangular Butterfly Gates

Compact water control gates ideal for restricted spaces requiring a drip-tight seal.McWane MPI

Fabricated Slide Gates

Engineered fabricated gates offering excellent sealing performance and superior corrosion resistance.McWane MPI

S-6000 Cast Slide Gates

Heavy-duty cast slide gates designed for high-head, high-debris, and critical water control applications.McWane MPI

Riser Valves and Hydrants

Includes overflow valves, alfalfa valves, and universal hydrants for reliable municipal and industrial water management.McWane MPI

Air and Pressure Relief Valves

Protect irrigation and piping systems by releasing entrapped air during filling and providing vacuum relief when lines drain.McWane MPI

Mud Valves

Specially designed valves primarily for use in settling tanks of water and wastewater treatment plants.McWane MPI

Eccentric Plug Valves

Eccentric Plug Valves (EPVs) deliver reliable flow control with full-flow body, nickel-welded seat, and Buna-N encapsulated plug. Available in 3"–48" sizes with manual, electric, pneumatic, or hydraulic actuation, meeting AWWA C517 standards.McWane MPI

Check Valves

AWWA and Ken-Flex check valves provide dependable backflow prevention for water and wastewater applications. Swing and hinged check designs offer maintenance-free, durable, and quiet operation in demanding environments. McWane MPI

Gate Valves

AWWA-compliant gate valves engineered for durability and long service life. Includes resilient seated, rotating disc, solid wedge, and double disc valves, available in various sizes and end connections for municipal and industrial projects.McWane MPI

Butterfly Valves

AWWA C504 butterfly valves for reliable flow control in water, wastewater, and industrial applications. Sizes 3"–72" with CL150B–CL250B, resilient seated, seat-on-disc, seat-on-body, and high-performance options. NSF 61/372 certified with bubble-tight, bidirectional shutoff.McWane MPI

Parshall Flumes

Fiberglass Parshall flumes for in channel flow measurementMFG

Partner with Us for Superior Water Solutions

Ready to elevate your water management solutions? Contact us today to discover how our expertise and innovative approach can meet your project needs effectively.

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