Control-System Modernisation: Key PLC Growth Driver to 2035
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Control-System Modernisation: Key PLC Growth Driver to 2035
control-system modernisation has stopped being treated as a maintenance line item and is now being written into ten-year demand models for industrial hardware. A cluster of market outlooks published on 28, 29 August 2026 places modernisation of industrial automation systems , alongside semiconductor fab build-out and tightening safety-compliance regimes , at the centre of structural growth forecast
Detail
The most explicit example is the low-pressure safety relief valve outlook published by IndexBox, which projects a 4.2% compound annual growth rate from 2026 to 2035 and attributes it to three converging forces: accelerating semiconductor fabrication capacity, modernisation of industrial automation systems, and stricter safety compliance across process industries.
Parallel outlooks for valve spool assemblies and vibration isolation mounting pads use the same logic, treating automation capital expenditure as a leading indicator for component demand. Both name automation majors , Schneider Electric, Honeywell, Yokogawa, Azbil, Festo, SMC, Norgren/IMI, Emerson’s ASCO and Eaton , among leading participants, a signal of how tightly valve, pneumatic and motion component demand is now coupled to controller and instrumentation refresh cycles.
The forecasting shift here is subtle but important. Analysts are no longer modelling valves, spools and isolation pads purely against plant output or oil-and-gas capex. They are modelling them against
. When a controller is replaced, the surrounding pneumatics, positioners, relief devices and mounting hardware are frequently specified out at the same time , which converts a software-and-cabinet project into a multi-component procurement event.
Read individually, each report is a niche component study. Read together, they describe a single demand engine: automation modernisation in the installed base, plus greenfield capacity in high-specification sectors.
Figures are vendor-published projections drawn from separate methodologies and are not directly comparable. Treat them as directional indicators of momentum rather than authoritative revenue guidance.
One detail deserves attention: the DCS outlook identifies pharmaceuticals and life sciences as its fastest-growing vertical at a 7.62% CAGR, and cites refinery brownfield retrofits driven by tightening IEC 61511 functional-safety obligations. That is the same compliance pressure named in the relief-valve outlook, viewed from the controller side of the panel.
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