Contact Summit Instrument Specialties Inside Sarnia today:

(519) 337-7677 / 1 (855) 337-7676

Positioners & Switches

Summit Instrument Specialties strives to provide innovative and competitively priced solutions from premium manufacturers for a wide variety of industries including but not limited to; power, oil and gas, chemical, pharmaceutical, pulp and paper, food and beverage. To learn more about the positioners & switches available in Sarnia, view the information below, with the option to download further product information.

Flowserve (Automax)

Recognized as the leader in position indication and control, Automax limit switches and positioners provide an unparalleled performance combined with an ease of calibration and maintenance. Automax has a proven track record in the chemical, oil and gas, pulp and paper, pharma and energy industries.



Flow+ manufactures limit switches which are durable, versatile, cost-effective, perform well after many cycles and are perfect for extensive commercial and industrial. Flow+ limit switches are suitable for a full range of water, gas, steam, petrochemical and general use/utility services and applications.



The Tissin TS600 series positioner is a rotary and linear electropneumatic positioner with options such as -40° C low ambient temp rating, push button smart set up 4-20ma postion feedback, and 2 x SPDT feedback. SIS keeps an extensive inventory of Tissin TS600 postioners on hand for quick delivery.


Elite Valve

Elite Valve’s model POSE-850 has a solid and compact design. This feedback switch is weatherproof, corrosion resistant, and has a captive stainless steel cover bolts.



The Triac APL 5 series limit switch is available with a stainless steel enclosure, and a unique screw-on lid with a spring loaded captive cover bolts design to hold bolts inside its cover.



Rotork/Soldo manufactures a complete line of ULC class I div I, class I div 2, and general purpose feedback switches.



JFlow Controls offers valve positioners in pneumatic and analog I/P that are used when a valve requires throttling action, and a complete line of valve position indicators (limit switches) for automated valves.


Flowserve (Worcester)

Worcester limit switch and positioner products provide unparalleled performance combined with ease of calibration and maintenance, and are for industries such as chemical, oil & gas, and energy-related industries.


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