Description
The Williams Comfort Products 8941 is a proportional pressuretrol controller engineered for precise pressure sensing and control in steam, air, noncombustible gas, and other non-corrosive fluid systems. Featuring a single potentiometer design with a 140-ohm resistance output, this controller delivers a smooth, proportional signal that integrates seamlessly into building automation and hydronic control systems.
Key Features
- Proportional output via single potentiometer — 140 ohms
- Operating pressure range: 0–15 PSI
- Pressure differential: 0.5 PSI for accurate, stable control
- Compatible with steam, air, noncombustible gas, and non-corrosive fluids
- 1/4″ NPT external process connection for easy installation
Application & Compatibility
The 8941 is ideal for use in low-pressure steam heating systems, pneumatic control circuits, and other HVAC/hydronic applications requiring proportional pressure feedback. Its 1/4″ NPT external fitting allows for straightforward integration into existing piping without additional adapters in most installations.
Specifications
- Brand: Williams Comfort Products
- SKU: 8941
- Pressure Range: 0–15 PSI
- Pressure Differential: 0.5 PSI
- Output Type: Single Potentiometer
- Resistance: 140 Ohms
- Process Connection: 1/4″ NPT External
- Compatible Media: Steam, Air, Noncombustible Gas, Non-Corrosive Fluids







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