1. What is Rolling Offset?

A rolling offset in piping is when a pipe needs to change direction both vertically and horizontally simultaneously. This calculator helps determine the true offset length needed for such installations.

2. How Does the Calculator Work?

The calculator uses the rolling offset formula:

Where:

• \( travel \) — The diagonal distance of the offset (inches)
• \( set \) — The horizontal or vertical distance of the offset (inches)

Explanation: The formula calculates the true offset length using the Pythagorean theorem, accounting for both horizontal and vertical displacement.

3. Importance of Rolling Offset Calculation

Details: Accurate offset calculation is crucial for proper pipe fitting, ensuring correct angles and lengths for seamless installation without leaks or stress points.

4. Using the Calculator

Tips: Enter the travel and set measurements in inches. Both values must be positive numbers. The travel must be greater than the set for a valid result.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between travel and set?
A: Travel is the diagonal measurement of the offset, while set is either the horizontal or vertical component of the offset.

Q2: Can this be used for any pipe material?
A: Yes, the calculation is material-agnostic, but always consider material-specific allowances for bending and joining.

Q3: What if my travel is less than my set?
A: This would result in an imaginary number, indicating invalid measurements. The travel must always be greater than the set.

Q4: How precise should my measurements be?
A: For best results, measure to at least 1/8 inch precision, especially for critical applications.

Q5: Does this account for pipe fittings?
A: No, this calculates the straight pipe length needed. You'll need to account separately for fittings based on your connection method.