1. What is Static Head of Centrifugal Pump?

Static head of centrifugal pump is the sum of suction head and delivery head of the centrifugal pump. It represents the total vertical height that the pump must overcome to move the fluid from the source to the destination.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( H_{st} \) — Static head of centrifugal pump (m)
• \( h_s \) — Suction head of centrifugal pump (m)
• \( h_d \) — Delivery head of pump (m)

Explanation: The static head is simply the sum of the vertical height from the pump centerline to the liquid surface in the suction reservoir (suction head) and the vertical height from the pump centerline to the liquid surface in the delivery reservoir (delivery head).

3. Importance of Static Head Calculation

Details: Accurate static head calculation is crucial for proper pump selection and system design. It helps determine the minimum pressure head that the pump must generate to overcome the elevation difference between the suction and delivery points.

4. Using the Calculator

Tips: Enter both suction head and delivery head values in meters. All values must be valid (non-negative numbers).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between static head and total head?
A: Static head only considers elevation differences, while total head includes static head plus friction losses and velocity head in the piping system.

Q2: Can static head be negative?
A: Yes, if the pump is located above the suction reservoir, the suction head can be negative, but the static head calculation still follows the same formula.

Q3: How does static head affect pump selection?
A: The static head determines the minimum pressure the pump must generate. Pumps are selected based on their ability to overcome the static head plus additional system losses.

Q4: Is static head affected by fluid properties?
A: No, static head is purely a function of elevation differences and is independent of fluid density or viscosity.

Q5: How to measure suction and delivery heads accurately?
A: Measure the vertical distance from the pump centerline to the liquid surface in both suction and delivery reservoirs using appropriate measuring tools.