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Types of Plunger Valve and Their Uses

Plunger Valve

Plunger valves are essential components in various industries, including food and beverage, chemical, water treatment, oil and gas, among others. They are widely used in controlling the flow of fluid and ensuring the process runs smoothly. Plunger valves come in different designs, sizes, materials, and constructions to fit varying applications. In this guide, we discuss the four main types of plunger valves and their uses.

Diaphragm Plunger Valves:

These types of valves employ a flexible diaphragm to regulate the flow of fluid. They are commonly used in applications that require a high level of hygiene, such as food and beverage production. The diaphragm material used depends on the type of fluid being handled. For example, in food production, the valve’s diaphragm must be food-grade and non-toxic. The valves are designed to be self-draining to prevent the accumulation of fluids in dead spots. Diaphragm plunger valves are ideal for controlling highly viscous fluids and abrasive media.

Piston Plunger Valves:

These valves use a piston to control the flow of fluid. The piston moves in response to hydraulic or pneumatic pressure, opening or closing the valve. They are commonly used in applications such as water treatment where a high flow rate is required. Piston valves are suitable for use with highly corrosive fluids and aggressive media. They are also ideal for use in high-pressure applications.

Pinch Plunger Valves:

Pinch plunger valves are designed to regulate fluid flow by pinching a tube or hose. The valve’s pinch mechanism works by pressing a flexible tube, limiting or shutting off the fluid flow. These valves are ideal for use with abrasive media and highly viscous fluids. They are commonly used in applications such as dosing, sampling, and drainage in the chemical and pharmaceutical industries.

Globe Plunger Valves:

Globe plunger valves are designed with a globe-shaped body enclosing the plunger. The valve’s plunger moves up and down inside the globe’s body, regulating fluid flow. They are ideal for corrosive fluids, high-temperature media, and high-pressure applications. Globe plunger valves are commonly used in industries such as oil and gas, chemical, and water treatment.

Conclusion:

Plunger valves are essential components in industries that deal with fluid handling. Choosing the right type of valve ensures the process runs efficiently and safely. Diaphragm, piston, pinch, and globe plunger valves are used in different applications. When choosing a plunger valve, consider factors such as the type of fluid, process conditions, and the valve’s material construction. Consulting a reputable supplier can also help you choose the right plunger valve for your application. With this guide, you can decide on the type of valve to use in your process.

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