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Pneumatic Pressure Controllers
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4195K Series gauge pressure indicating controllers show process pressure and set point on an easy-to-read process scale. Controller types are available for proportional-only, proportional-plus-reset, proportional-plus-reset-plus-rate, and differential gap for on-off control.
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Fisher 4195K Gauge Pressure Indicating Controllers
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4195KA, KB, KC, and KS Gauge Pressure Controllers
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Simple design allows fast, easy maintenance and minimal spare parts inventory.
Adjusting the set point, the zero and span of the process pointer, and switching between direct and reverse action are accomplished quickly and without special tools. Additionally, the set point and proportional band can be adjusted with no interaction between the two adjustments.
Either a Bourdon tube or capsular input element is available to control a wide range of positive pressures, vacuum pressures, or compound pressures.
A 4195K Series controller can be mounted directly on the actuator or it can mount on a pipestand, wall, or in a panel.
The simple design and low mass of internal parts allow a 4195K Series controller to withstand the vibration levels encountered in most plant environments.
Two red pointers on a 114 mm (4 1/2-inch) long, white-on-black scale show process pressure and deviation from set point at a glance. Two other gauges monitor supply pressure and output pressure.
Low Air Consumption—
The relay and nozzle design reduces steady-state air consumption to as low as 0.09 m
/hr (3.5 scfh); less than the 6 scfh requirements set for the oil and gas industry by the US Environmental Protection Agency (New Source Performance Standards Subpart OOOO, EPA-HQ-QAR-2010-0505).
Tough, plastic housing resists such corrosive environments as chemical plants and the salt spray atmosphere on an offshore oil platform. Internal constructions are available to resist a corrosive supply pressure media.
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