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Watson Smith

Watson Smith

Watson Smith is part of the Norgren group which is a leading global supplier of motion and fluid control solutions.

As a group Norgren produces a whole family range of pressure control equipment sold throughout the whole world.

Originally founded over a century ago by John Watson and joined by John Smith in the 1950s, Watson Smith became a part of the IMI group in 1984.

Watson Smith has been a world leader in the design and manufacture of specialist pneumatic instrumentation for over twenty years.


Watson Smith invests in the development of Electro - Pneumatics interfacing flexible electronic control with pneumatics.

Watson Smith is strongly committed to research and development.

Our electronic design, research and development include intensive validation testing, hybrid PCB integration and intelligent diagnostic software design.

We have developed our own electro pneumatic modelling software which allows us to design in a virtual environment.

Quality Policy

Watson Smith is committed to the continuous improvement of products, processes and procedures to ensure that all products and service conform to customer quality requirements. A strong management team is in place to effect the necessary support and controls to business operations. Each production line is fully computerised and networked for 100% testing.

"We actively invest in the latest quality assessment equipment, and, through training, we ensure that our people understand the processes and have the tools to build in quality throughout the organisation."


  Watson Smith's quality system is approved to the internationally recognised standard ISO 9001.
  We have received the BS EN ISO 9001:2000 standard approval for the design, manufacture and in-house repair of electro-pneumatic and electronic control and measurement instrumentation.
  Our products have received hazardous area approvals from Baseefa, SIRA (for ATEX), FM and CSA.
  Watson Smith is also recognised for the Queen's Award for Export Achievement.

Electronic I/P Converters

421 Failsafe
422 Failfreeze
423 Failfreeze
425 Failsafe
120 Modular I/P Pilot Booster
122 Modular I/P Pilot Booster
122E Explosion Proof

Electro Mechanical I/P and E/P Converters

100X/101X Electro-Mechanical I/P and E/P Converters
140 Failsafe Electronic Converter (I/P)
440 Multi-function Electro-Pneumatic Converter
443 Rugged Electronic Pressure Converter

Pressure Regulators

R27 Manostat Manually/Mechanically Operated
R27 Auto/Manual Loading Stations

Pressure Control Valves

VP12 Miniature
VP50 3-Way
VP50S 3-Way
VP51 3-Way Programmable

Other Products

Air Preparation Accessories
300D Portable Precision Pressure Meter
FRI30 Flow Controller


68 P/I Converter

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