The h2x Blog
We publish practical guides, top tips and trends, latest news, and more stories related to the mechanical, plumbing and fire industry.
Latest Articles
Glycol in Heating and Cooling Systems – What are the Implications?
Glycol is a substance commonly used in heating and cooling systems for its freeze protection capabilities. In...
The Correlation Between Water Temperature and Friction Loss in Water Pipes
Commonly known factors in pressure loss calculations include the flow rate of the water, the pipe diameter,...
What is hard water?
Hard water is caused by high levels of dissolved minerals, primarily calcium and magnesium, in the water. ...
10 Steps to Creating an Easily Maintainable System
This one should go without saying... but a correct design is crucial for maintenance because it ensures...
Water Storage Tanks
A water storage tank is a container used to store and hold water. Tanks are typical for...
Quality Control in Engineering Designs
Engineers working in design know that quality control places significant demands on their work. From pipe sizing...
‘Erosion Corrosion’ in Water Systems
Erosion corrosion is a type of corrosion that occurs when water flows over a metal surface. The...
H2X: The Plumbing System Design Software That Helps You Design Compliantly
Plumbing system compliance relies on an all-important bedrock of technical calculations. However, the workflow followed to undertake...
Recirculation Pumps
A complete guide to sizing Recirculation Pumps. Learn the calculations, know when they are required, and ensure...
What Does BIM Mean for Engineers?
Engineers have long sought techniques to decrease project costs whilst increasing productivity and quality. Building information modelling...
How is BIM Impacting the Construction Industry?
Anyone involved in a construction project knows that a lot of work goes into even the simplest...
Booster Pumps
Booster pumps increase the water pressure within a system. As a rule of thumb, you will need...
Featured (Must-Read Blogs)
How To Calculate Duct Size: A Comprehensive Guide
Learn how to calculate duct size effectively with h2x's comprehensive guide below. Improve airflow and efficiency within...
What Are Cv and Kv? Flow Coefficient Formulas & Valve Sizing Explained
Learn how flow coefficient (Cv) impacts valve sizing. Explore their calculation, importance in fluid dynamics, applications, and...
Calculating Heat Loss: A Step-by-Step Guide
Learn how to calculate heat loss for HVAC system design.
Hazen-Williams vs. Darcy-Weisbach: Which Should You Choose?
Compare Hazen-Williams and Darcy-Weisbach for pipe friction loss, accuracy, simplicity, fluid type, and when to use each...
How to Size Water Pipes
To size water pipes correctly is critical for the performance of your design. Below, we will explore...
The Importance of Calculating Residual & Static Pressure
Water pressure is an essential aspect of every plumbing system. Here, we explain the importance of calculating...
Highlights (Free Downloads)
Ductulator Chart: Practical Guide for Mechanical Engineers (Free Download)
Duct size directly affects noise, energy, and layout, which is why you should use the Ductulator Chart...
FREE Pipe Volume Spreadsheet
Access h2x's free pipe volume spreadsheet to streamline calculations, optimise design, and enhance efficiency in piping projects.
Hardy Cross Method – Sizing a Ring Main (FREE Spreadsheet)
Flow rate and friction loss in a pipe network system can be difficult to calculate. When the...




















