A Long Tradition Spanning the Power and Shipping Industries.

The Trillium Flow Technologies legacy brand Atwood & Morrill® began in 1900 in Salem, MA, USA. The company started out making valves for mills in the USA and later produced valves for ships during World War II. The company has also manufactured large valves for power plants, including the first prototype nuclear reactor, and for the U.S. Navy’s first nuclear submarine.

Today, as one of Trillium Flow Technologies innovative legacy brands, Atwood & Morrill is proud to be a pioneer in valve design in engineering in power generation, oil and gas, and petrochemicals.

Uncompromising Standards.

Trillium Flow Technologies is passionate about its uncompromising standards of design excellence and product quality. Our Atwood & Morrill Free Flow Reverse Current Valve was introduced in 1929 for extraction turbine applications. Its modern equivalent has become an industry benchmark for turbine protection around the world. Adding to this, we offer controlled closure check valves, compressor check valves, three-way valves, wye globe valves, nuclear MSIV / MFIV valves, and parallel slide gate valves.

100 Years of History Gives You Complete Confidence.

In our more than 100 years of history, Atwood & Morrill has built a steadfast reputation in developing engineering solutions with uncompromising standards of design excellence and product quality. Each valve bearing the Atwood & Morrill brand name is produced in strict compliance with industry standards. We stand behind our product lines and provide you with a unique level of service and support in every stage of your projects.

As part of the Trillium Flow Technologies family, Atwood & Morrill’s long history of innovation, design excellence and product quality continues, giving you complete confidence in partnering with us.

Pre -Purchase Support

  • Site surveys / FEED studies
  • Project timeline preparation
  • Detailed cost estimates
  • Material selection advice
  • System design & drawings
  • Tender specification creation & support
  • Necessary standards & compliance support
  • Full technical & commercial tenders
  • Offering of configured product or engineered to order solutions
  • In many cases supply of full technical package inclusive of provisional/final drawings
  • Full references to provide peace of mind

Equipment Supply

  • Butterfly, gate, globe, check, safety & control valves + actuators
  • Project management from basic to the most complex of packages
  • Engineered drop in replacement units
  • Capability to offer multiple manufacturing locations & localised content where required
  • Full pump, valve, turbine & motor performance testing

Full -Range Transactional Services

  • Full installation [JJ2] & commissioning service or supervisory scope
  • On-the-job training of operating staff
  • Training in maintenance
  • Combination of classroom & hands -on learning
  • Delivered in our training rooms or at your site
  • Rapid spares from stock
  • Re-engineered & manufactured parts
  • On -site and workshop repairs & service
  • Outage, shutdown & turnaround maintenance
  • Rapid response service
  • Performance upgrades often within same pump or valve body
  • Material upgrades for pumps & valves
  • Mechanical redesign of seals, bearings or wear parts to latest technology
  • Trillium & third party brands all handled with the same quality approach

Asset Management / Total Service

  • Pre -installation health checks
  • Long term service agreements (LTSA)
  • Service exchange programme
  • Bespoke service management
  • Central engineering knowledge base & support
  • Engineering team review & provision of upgrades and re -rates
  • Service plans and framework agreements
  • Dedicated teams supporting planned outages including SQEP personnel for site work
  • Global network of product material specialists
  • Failure mode & effect analysis

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