What Is This Tool?
This tool converts pressure measurements from foot water (60°F), a hydrostatic pressure unit, into ton-force (long)/square inch, a legacy Imperial unit expressing force over area. It helps translate modern low pressure readings into historical British engineering terms.
How to Use This Tool?
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Enter the pressure value in foot water (60°F) [ftAq]
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Select the target unit as ton-force (long)/square inch
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Click convert to obtain the equivalent pressure
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Use the results for legacy engineering or low-pressure measurement applications
Key Features
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Supports conversion between foot water (60°F) and ton-force (long)/square inch pressure units
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Browser-based and easy to use with quick calculations
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Includes legacy and modern unit compatibility
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Useful for HVAC, hydraulic systems, and engineering documentation
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Accurately reflects pressure units used in both SI and Imperial systems
Examples
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10 foot water (60°F) [ftAq] converts to 0.00193348 ton-force (long)/square inch
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100 foot water (60°F) [ftAq] converts to 0.0193348 ton-force (long)/square inch
Common Use Cases
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Converting low-pressure differentials in HVAC and building ventilation systems
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Measuring small gas or fluid pressures in regulators and leak testing
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Translating hydraulic head pressures in pumps and laboratory manometers
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Understanding historical British engineering specifications for heavy machinery
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Updating old industrial press ratings into modern units
Tips & Best Practices
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Always verify the temperature reference when using foot water (60°F) for accuracy
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Use the tool for legacy data modernization to SI units
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Cross-check converted values when applying to engineering design or analysis
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Apply the converter when interpreting old technical documents involving British units
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Be aware of the differing unit conventions between Imperial and SI systems
Limitations
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Ton-force (long)/square inch is a legacy unit rarely used in current standards
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Values may vary due to rounding and the specific temperature for water density
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Not suited for high-precision scientific measurements requiring SI units
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Limited application outside historical and industrial legacy contexts
Frequently Asked Questions
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What does foot water (60°F) [ftAq] measure?
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It measures hydrostatic pressure from a 1-foot column of water at 60°F under standard gravity.
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Why convert to ton-force (long)/square inch?
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To interpret pressure data in legacy British engineering contexts and historical machinery specifications.
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Is ton-force (long)/square inch commonly used today?
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No, it is largely a legacy unit replaced by SI pressure units in modern practice.
Key Terminology
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Foot water (60°F) [ftAq]
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A pressure unit based on the hydrostatic pressure of a 1-foot water column at 60°F, used in low-pressure and hydrostatic contexts.
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Ton-force (long)/square inch
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A legacy British pressure unit representing the force of one long ton acting over one square inch.
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Hydrostatic Pressure
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Pressure exerted by a fluid at equilibrium due to the force of gravity.