1. What is Differential Pressure?

Definition: Differential pressure (ΔP) is the difference between two pressure measurements in a system.

Purpose: It's crucial for monitoring fluid flow, filter conditions, and pressure drops across system components.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \Delta P \) — Differential pressure (Pascals)
• \( P_1 \) — First pressure measurement (Pascals)
• \( P_2 \) — Second pressure measurement (Pascals)

Explanation: Simply subtract the second pressure value from the first to find the pressure difference.

3. Importance of Differential Pressure

Details: Differential pressure measurements are essential in HVAC systems, industrial processes, medical equipment, and fluid dynamics analysis.

4. Using the Calculator

Tips: Enter both pressure values in Pascals. The calculator will show the difference between them.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for pressure?
A: This calculator uses Pascals (Pa), but you can convert from other units before entering values.

Q2: Can differential pressure be negative?
A: Yes, a negative result means P₂ is greater than P₁.

Q3: Where is differential pressure used?
A: Common applications include filter monitoring, flow measurement, and leak detection.

Q4: How precise should my measurements be?
A: Use as precise measurements as your instruments allow for accurate ΔP calculations.

Q5: What's the difference between gauge and differential pressure?
A: Gauge pressure is relative to atmospheric pressure, while differential pressure compares any two pressure points.