1. What is a Pipe Fitting Friction Loss Calculator?

Definition: This calculator estimates the pressure loss (friction loss) that occurs when fluid flows through pipe fittings.

Purpose: It helps engineers and technicians determine the energy loss in piping systems due to fittings like elbows, valves, and tees.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \Delta P \) — Pressure loss (Pascals)
• \( K \) — Loss coefficient (dimensionless)
• \( \rho \) — Fluid density (kg/m³)
• \( V \) — Flow velocity (m/s)

Explanation: The pressure loss is proportional to the square of the velocity and depends on the fitting's resistance characteristics.

3. Importance of Friction Loss Calculation

Details: Proper calculation ensures accurate pump sizing, system pressure requirements, and efficient piping system design.

4. Using the Calculator

Tips: Enter the fitting's K factor, fluid density (default 1000 kg/m³ for water), and flow velocity. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where can I find K values for different fittings?
A: K values are typically provided in engineering handbooks or by fitting manufacturers.

Q2: What's a typical K value for a 90° elbow?
A: A standard 90° elbow typically has a K value between 0.3 and 0.9 depending on size and type.

Q3: Does this account for pipe friction loss?
A: No, this only calculates losses through fittings. Pipe friction requires the Darcy-Weisbach equation.

Q4: Can I use this for gases?
A: Yes, but be sure to use the correct gas density at operating conditions.

Q5: How does velocity affect the pressure loss?
A: Pressure loss increases with the square of velocity - double the velocity means four times the pressure loss.