R454b is a low global warming potential HFC/HFO zeotropic blend used for the replacement of R-410A. In this post, we will cover details and features of the R454B pressure-temperature chart and its related features. So let’s get started. What is R-454B Refrigerant? R454 B is an HVAC refrigerant that comes with a 68.9% R-32 (difluoromethane)…
A refrigerant temperature-pressure chart serves as a simple tool for obtaining the necessary values. It is also called a PT chart or PT card. The PT chart comes with a pressure value and its relevant boiling point. A refrigerant with these conditions is called saturated. Saturated refrigerants are 100 percent vapor or liquid mixture with…
Whether for new construction or renovations needed with the upgradation of the system, all these services are finished by the mechanical contractor. If a proper skill set and expertise are not offered through mechanical trades, it makes building construction without the required features. Mechanical contractors perform designing, construction, and instrument maintenance and systems for accurate…
Screws, small-sized components whose size is important, but using the wrong size can damage our project. Like for shelf assembly, house construction, or machine repairing, an accurate screw size is important for fitting and proper alignment. In this tutorial, we will cover details about screw size charts and their practical importance for different applications. So…
An HVAC duct sizing chart is helpful for installation, EPCs, and engineers to get details of an airflow system that is calculated in cubic feet per minute (CFM). Main features provide friction losses at a rate of 0.1 inches of water column per 100 feet of duct and provide high-efficiency HVAC operation with noiseless features. The…
METAL gauge thickness was used worldwide before the introduction of thickness measuring units. That thickness measurement of material through density. The thickness of material for sheet metal is measured in gauge. In this tutorial, we cover details about metal gauge thickness and make a chart for further details, so let’s get started. Gauge System of…
How the Right Hand Protection Supports Static Control, Product Cleanliness and Reliable Electronics Assembly Printed circuit boards are handled many times before becoming the final product assembly. Operators connect components during different processes such as kitting, manual insertion, inspection, rework, testing, cleaning, and packaging. At each phase, the hands are a source of electrostatic charge,…
This drill bit size chart lists sizes in different measurement systems, for example, fractional, metric, wire gauge, and letter sizes. Here we have made drill bit charts for different details Fractional Drill Bit Size Chart Fractional Size Decimal (in) Metric (mm) 1/64 0.0156 0.397 1/32 0.0313 0.794 3/64 0.0469 1.191 1/16 0.0625 1.588 5/64 0.0781…
Bolts are fasteners that are configured with nuts in a single assembly. For the connection of different products, proper sizing of bolts is important for the safe working of machines and various instruments. In this tutorial, we will cover details about bolt size charts and the importance of bolt sizes for practical applications. Introduction to…
A Practical Case Study in Workstation Grounding, Personnel Control, Surface Verification, and Process Discipline Electrostatic discharge is not common on the electronics production floor. The component may be damaged without sound or immediate indication. Uncontrolled discharge reduces electrostatic-discharge-sensitive devices long before the finished product reaches a customer. This case study shows how an electronics manufacturer…