Types of Ball Valves

Types of ball valves :   Different types of bores for ball valves – full port, reduce port and V-port. These three types have different constructions and purposes.   Full Port Ball Valve – A full-port, also known as a full bore, ball valve has a bore internal diameter (ID / inside diameter) approximately equal to the pipeline ID. This allows for reduced friction and pressure loss across the valve. With a full port ball valve there is NO restrictions to the flow of medium,…

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Seat and Shell Valve Testing

At Global Valve and Controls we ensure that every valve is tested before it leaves our facility and delivered to your facility. Most manufactuers will only test a small percentage of their valves as it is a time consuming process as you see below. We make sure that every valve whether its a Ball, Gate, Globe, or check valve gets tested. Below is a presentation of how we test our valves. The valves go through the shell test first and then a seat test. We shell…

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Understanding Stainless Steel Ball Valves

Stainless steel ball valves are definitely one of the popular materials that many people buy. They are perfect for the food and beverage industry, agriculture as well as the pulp and paper industries. The reason behind this is because stainless steel does not corrode and when dealing with food which we consume you do not want your machines corroding. White it is true that stainless steel (SS) does not easily corrode or rust, it really depends on the oxygen level in atmosphere. For example, if…

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Lubricants for Your Valves’ Gearbox

Theory: Cold weather dictates a different type of lubricant to avoid seizure and promote proper function inside the gear housing. Global Valve and Controls states, “in order to have a proper functioning valve it is necessary to use the correct grease inside the gear housing.” In a case study where non-cold rated grease is applied to a valve that is heading to Wyoming, where the weather can be frigid seven months out of the year; the likelihood of the valve seizing becomes increased and the…

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