Across the process industries — from water and wastewater treatment to food and beverage, pulp and paper, life sciences, and power generation — one thing remains constant: valves need to work, and operators need to know exactly what they're doing at all times. That's where Emerson's TopWorx™ portfolio steps in, and where Piping Specialties, Inc. (PSI) of Portland, Maine, becomes your competitive edge.
The TopWorx lineup covers everything from entry-level valve position indicators to intelligent smart positioners and proximity sensing systems. The TopWorx DVR Switchbox — a compact, corrosion-resistant valve position indicator with a patented cam design — delivers clear open/close feedback with minimal footprint, ideal for confined spaces and outdoor installations. For applications requiring advanced diagnostics, the TopWorx PD Series Smart Valve Positioner brings non-contacting sensor technology, HART communication, and hazardous area certification together in a compact, intelligent package.
Whether you're managing a municipal treatment plant, running a regulated pharmaceutical process, or optimizing a continuous production line, TopWorx products help your team see what's happening — in real time — and act with confidence.
- Valve position feedback
- DV Series switchboxes deliver reliable local indication across process, pipeline, and utility applications.
- Smart positioners
- PD Series positioners with HART and hazardous area ratings for intelligent, precise valve control.
- GO Switch® sensors
- Non-contacting proximity sensors for consistent position detection in harsh or explosive environments.
- Harsh-duty engineered
- UV-rated enclosures, stainless components, and corrosion resistance built for the long haul outdoors.
What makes TopWorx™ technology even more powerful is having a local team that truly knows how to apply it. Piping Specialties, Inc., established in 1975 and headquartered right here in Portland, has spent nearly five decades earning a reputation as one of the Northeast's most trusted distributors of valves, process controls, and engineered mechanical specialties.
PSI isn't a catalog house — it's a technical partner. The team includes factory-trained application engineers, field service technicians, and in-house design and CAD capabilities, meaning PSI can help you engineer the right solution, not just ship you a box. And with offices in Portland, ME and Danvers, MA, PSI serves all of New England — from Maine to Connecticut, from Vermont to Rhode Island — with the responsiveness of a local partner and the product depth of a national distributor.
If you're specifying new valve automation, troubleshooting an existing installation, or looking to upgrade your position sensing and control strategy, PSI's team is ready to help. Reach out today to put Emerson TopWorx™ technology — and four decades of Northeast expertise — to work for your facility.
