The central component group of the valve mid-section is essentially the bore, gate and the seals around it. These are the components that are in direct contact with the fluid and thus physically interact with the fluid to control the flow. The valve gate is the component that physically allows or hinders the fluid flow … Continue reading Valve – Mid Section/Body
The valve mid-section and the body contain the parts that interact with the fluid in question. The upper stem seal seat is where the seal rests and seals the stem preventing fluid migration beyond the valve cavity. The bonnet seal seat is home to the seal that prevents fluid migration between the bonnet and the … Continue reading Valve – Mid Section/Body
The upper portion of the valve has the various parts that seal the valve. This section ensures that the fluid flow is contained within the body. The bonnet and the seals allow for the stem of the valve to pass through, rotate and move. The valve stem bearings, are what allows the valve stem … Continue reading Valve – Bonnet & Seals
The valve is a key component of any flow control and regulation system. It gives the operator the ability to not just start and stop flow but adjust the rate through a particular system or portion of a system. The handle has the obvious function of lending manual control over the valve. The simple act … Continue reading Valve – A Simple Overview
This is self-explanitory, the valve has a leak, due to some fault of the valve or operation out side of the valve's parameters it allows for the release of process fluids. Leaks usually eminate from either the base of the stem as it enters the valve body, or it ma leak internally at the valve … Continue reading Valve Problems-Leaking
Like all equipment valves are subject to problems in operation, quick and accurate identification and troubleshooting of the problem is necessary to ensure that the problem doesn't impede the process or result in equipment failure. The valve body is prone to cavitation, this occurs when the fluid within occupies 2 phases, vapour and liquid, essentially … Continue reading Valve Problems-Cavitation
These are used to remotely control a valve and are common in the modern industrial plant environment, they represent the final element of control for a particular process. They may be either air, gas or hydraulic and are classified depending on the power supply used to actuate the valve. Pneumatic actuators use air to control … Continue reading Valve Actuators
The gate keepers of any industrial process fluid flow, these devices are responsible for or aid in the control of fluid flow. They are mechanical devices that can be interacted with directly or indirectly. Directly the operator can physically/manually operate the valve to open, close or throttle the fluid flow passing within. Indirectly the valve … Continue reading Valves
The gate valve is one of the more commonly accessible vales. As the hand wheel is turned the threaded stem is turned this causes the gate to move along the thread pitch. The size of the hand wheel and the thread pitch determines the ease of which the valve is opened. The direction the had … Continue reading Gate Valves