Positioners and Limit Switches

Limit switches, position indicators, and valve positioners for monitoring or controlling the valve position of air actuated valve assemblies.
BRAY
Bray positioner

Bray Controls has announced the Series 6A line of Intelligent Electro-Pneumatic Positioners. These microprocessor controlled positioners offer precise flow control and advanced digital communication. Utilizing proven technology, the Series 6A features reliability in the field plus the lowest air consumption on the market. For use with either double or single acting pneumatic actuators, the positioners can accept an analog 4-20 mA input or BUS intelligent HART, FOUNDATION Fieldbus(TM) or PROFIBUS PA input. Both waterproof (NEMA 4, 4X/IP66) and explosion proof (NEMA 4, 4X, 7 and 9) enclosures are offered. A waterproof stainless steel enclosure is available upon request.

Series 64 Positioners For Double Acting & Single Acting Actuators 
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Series 6A Positioners For Double & Single Acting Pneumatic Actuators
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FNW VALVE CO.
FNW Positioners

FNW supplies pneumatic and electropneumatic positioners for both quarter-turn and linear actuators. Contact Summit for optional positioner configurations such as low temp (-40°F/-40°C), reverse acting, feedback units, and characterized cams including split range, equal percent, and square root degree combinations.

 

Positioners - PMV P5 (Pneumatic) and EP5 (Electropneumatic)
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Produced by Allen-Bradley, the FNW MLS4 mechanical limit switch is a heavy duty, ruggedly designed switch for industrial applications. Primarily used for position indication on knife gate and wedge gate valves, FNW can custom mount one or more MLS4's for your control needs. Additional configurations are available. Contact Summit with your application requirements.

MLS4 - (Allen-Bradley 802T-AP) Mechanical Limit Switch

PLS4 - (Efector IG0330) Inductive Proximity Limit Switch
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TOPWORX
Topworx Limit Switches


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Leverless Limit Switches built to last in the most demanding plant conditions

GO® Switch leverless limit switches provide reliable, durable position sensing in the most demanding plant conditions. Unlike mechanical limit switches or inductive proximity sensors, GO Switches use a unique hybrid technology that eliminates wear and tear. As a result, GO Switches are more dependable and last longer in the toughest applications.

The GO Switch Difference
Unique hybrid technology. GO Switches have a one-of-a-kind “leverless limit switch” design that combines the advantages of existing limit switch and proximity sensor technologies. As a result, GO Switches deliver better performance in the most demanding applications.

Reliability in a variety of industries. For over fifty years, GO Switches have set the standard for mission-critical position sensing in the automotive, cement, chemical, die casting, food & beverage, hydrocarbon, manufacturing, mining, oil & gas, petrochemical, power generation, pulp and paper, steel & aluminum, tire & rubber, and water & wastewater industries.

Durability when it matters most. GO Switches last longer in plant conditions that are hot, cold, wet, dirty, abusive, corrosive, and explosive. A wide variety of GO Switches are certified for use in all hazardous areas including Zone 0 (intrinsically safe), Zone 1 (explosion proof), and Zone 2 (non-incendive). With no exposed moving parts and no delicate electronics, GO Switches have been designed to withstand caustics, corrosives, salt water, submersion, physical abuse, vibration, and temperatures ranging from -58°F/-50°C to 400°F/204°C.