3 Different Types Of Valves

By Author: Jeeten Gupta
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A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. Materials that may be used for performance valve applications include carbon steel alloys, stainless steels, high-strength nickel-chromium-iron alloys and titanium.

Types of Valves:

There are many valves available in the market like strainer valves, choke valves, air release valves, Pressure Valves and many more. But, today will be looking at different types of valves which are most commonly used in the industries as per their functions, needs and requirements. The following are the Valves

• Butterfly Valves
• Globe Valves
• Ball Valves

1. Butterfly Valves:

Butterfly Valves are designed to regulate flow with limited control capability. This Valves has a simple piping system which has a rotating disc which Rotates across the Flow. Butterfly valves are operated easily by rotating the handle at 90 degrees ...
... and can be operated both Automatically and manually. It consists of a metal disc in the body of the valve which is positioned perpendicular to the flow in the closed position. These valves can be operated by handles, gears or actuators according to specific needs.

Pros of Butterfly Valves

• Butterfly Valves has a low pressure drop and high-pressure recovery
• Can be used with chemical or corrosive media
• This Valves has an open port
• Butterfly Valves is compact and has a light-weight design
• This Valves are available in Larger Size
• Highly Efficient of Flow
• Butterfly valves are very accurate

Cons of Butterfly Valves

• Butterfly Valves is difficult to clean, and it also consumes a lot of Time
• Throttling of a butterfly valves is limited to low pressure
• Disc movement is affected by flow Turbulence
• Butterfly valves have no tight shut offs

A Brief Guide about Butterfly Valves types, uses and Specifications

2. Globe Valves:

Globe Valves are among the most popular types of valves used in various Industries. Gate Valves is used to control the flow in pipeline and adjust the Gaps Between the Globe Shaped Plug and the Ring Seat. Globe Valve doesn’t Leak much as Compared to other valves. This Valves consists of a movable disk-type element and a stationary ring seat in a generally spherical body. There are two types of Globe Valves shaped Plug which is used for Low Pressure Flow and Plug and Cage valves is used to Control the Flow. There is an Extra hole in the plug to Control the Flow.

Pros of Globe Valves
• Globe Valves can Be used in High-Pressure Systems
• It has Precise control over is functions
• They contain positive shut-off
• Opening-closing of a Globe Valves is shorter
• Body ring seating surface process is easier

Cons of Globe Valves

• Globe Valves is Heavier than Other Valves
• Higher Flow Pressure and to close globe valves under high pressure, it requires a larger amount of force or an actuator with a large torque
• It has a large opening for disk assembly
• Has a High Head Loss
• Not good for cleaning

More About Globe Valves Specifications and Types

3. Ball Valves:

Ball Valves as the Name Suggests, uses a ball to control the flow of Elements from one end to another. They are Versatile and offer better Sealing. Ball Valve is Similar to Butterfly Valve, the difference is only the Shape of Rotating plugs. Ball Valves is in a Spherical form and has a hole drilled in it. These valves are in high demand in the industrial Sectors because of their reliable and air-tight sealing when in the closed position.

Pros of Ball Valves

• Ball Valves can function without side loads
• This Valves has a low purchase and low maintenance cost
• Ball Valves has a long service life
• It can be used in high temperature flow and also in high pressure
• Ball Valves does not Requires Lubrication
• Ball Valves provides leak-proof service
• They open and close quickly

Cons of Ball Valves

• Ball Valves is difficult to clean, an improper cleaning process can lead to contamination to the valve
• This Valves has a poor throttling characteristic
• Ball valves are not suitable for permanent throttling

Types of Ball Valves, its uses and Applications are shown in this Article

More Resources:
• 10 Types of Valves used in Industrial Areas
• A Complete Guide on Check Valves