Technical FAQs

How Does a 4-20mA Electro-Pneumatic Positioner Work? A 4-20mA electro-pneumatic positioner is a device used in industrial automation to control the position of a valve operated by a pneumatic actuator. The 4-20mA designation refers to the current loop signal used to communicate between the positioner…

What Does MAST Mean with Valves? MAST (Maximum Allowable Stem Torque) refers to the maximum amount of torque that can be applied to the stem of a valve or a similar device without causing damage or malfunction. The stem is the part of the valve…

What is a Double Block & Bleed Valve? A double block and bleed (DBB) valve is a type of industrial valve that provides two isolation barriers and a means of venting or bleeding the cavity between the barriers. This configuration is designed to enhance safety…

What is the Purpose of Oxygen Cleaning Valves? Oxygen cleaning is a process that involves removing contaminants from equipment and components that will come into contact with high-pressure oxygen. This is particularly important in industries such as aerospace, medical, and diving, where oxygen is used…

What is the Difference Between a Resilient Seated Butterfly Valve & High Performance (Double Offset) Butterfly Valve? Both resilient seat butterfly valves and double offset high-performance butterfly valves are used in various industries for controlling the flow of fluids. However, they have distinct design features…

How Does a Declutchable Gear Operator Work? A declutch gear operator, also known as a declutch-able manual override or a manual handwheel, is a device commonly used with industrial valves and actuators to manually operate the valve when needed, regardless of the automated or electric…

Flow simulation of our Delta T Cavitation Control Butterfly Valve.  What is Cv and how does it relate to valves? Valves play a critical role in the regulation of fluid flow. Whether for industrial applications, plumbing, or other processes, selecting the right valve characteristics is…

What is Cavitation? Cavitation in a valve or pipeline refers to a phenomenon that occurs when the pressure of a fluid drops below its vapor pressure, causing the formation and subsequent collapse of vapor or gas bubbles. This collapse produces intense shockwaves and can lead…

Why Use a Vented Ball? Ball valves equipped with a “vented ball” generally fall into two functional categories – internally vented or externally vented. It is important to identify which type is needed for your application because there are significant differences between the two functions.…