Core Technical Advantages
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Rapid Field Adjustments: Set point, zero/span calibration, and switching between direct and reverse action can be performed quickly without specialized tools, reducing downtime during maintenance or process shifts.
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High Vibration Resistance: The simple internal design and low-mass components allow the controller to maintain accuracy and stability even in high-vibration plant environments.
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Environmental Protection: The durable plastic housing is engineered to withstand corrosive atmospheres, making it ideal for the harsh salt spray of offshore platforms and the chemical vapors of processing plants.
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EPA-Compliant Efficiency: The advanced relay and nozzle design limits steady-state air consumption to as low as 0.09 m³/hr (3.5 scfh), easily exceeding the strict 6 scfh emission requirements set by the US Environmental Protection Agency (EPA).
Technical Core
| Feature | Technical Specification / Detail |
| Control Types | Proportional only; Proportional-plus-reset; Differential gap (on/off) |
| Input Signal | Gauge Pressure |
| Output Signal | 3-15 psi (0.2-1.0 bar) or 6-30 psi (0.4-2.0 bar) |
| Steady-State Consumption | 0.09 m³/hr (3.5 scfh) |
| Mounting Options | Actuator-mounted; Pipestand; Wall; Panel |
| Casing Material | Corrosion-resistant plastic |
| Certification Compliance | Meets US EPA New Source Performance Standards (Subpart OOOO) |
Applications and Industry Sectors
The 4195K is the preferred choice for reliable, non-electronic pressure control across several heavy industries.
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Oil and Gas Production: Monitoring and controlling separator or wellhead pressure, especially in remote areas where minimizing gas consumption is a priority.
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Chemical Processing: Regulating pressure in corrosive production loops where electronic instrumentation might be prone to failure.
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Offshore Platforms: Providing visible local indication and control in compact, salt-saturated environments.
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Power Generation: Localized pressure control for auxiliary steam or water systems requiring rugged, stand-alone pneumatic logic.
Xi’an Yunrui Trading Co., Ltd. Technical Support
Xi’an Yunrui Trading Co., Ltd. is a major supplier of Fisher brand products. We specialize in providing original, high-efficiency Emerson automation solutions to industrial clients. Beyond supplying core hardware like the 4195K Indicating Controller, we leverage deep technical expertise to provide professional support and model selection guidance for procurement and engineering projects. By optimizing our supply chain, we provide a distinct pricing advantage, ensuring we offer highly competitive prices while assisting clients in optimizing processes and achieving digital upgrades.
If you need assistance selecting the correct pressure range or require advice on integrating the 4195K into a panel-mount configuration, please contact our technical team for expert support.
