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Category: Valves

Applications of Globe Valves and Their Examples

Rifka Aisyah Leave a comment

In this post, I want to share with you the applications of globe valves and their examples. Different from ball, plug, and gate valves, which are used to start and stop fluid flow in piping systems, globe valves are used to regulate flow. Globe valves usually should not be used for less than 20% opening for throttling, because it will increase the wear and load concentration on the seat and plug.

Application of Globe Valves for Control Valves Bypass

Typical application of globe valves is for control valves bypass. When control valve is taken out for maintenance purpose, a bypass globe valve provides continuous operation with some level of regulation. Read More

Applications of Butterfly Valves and Their Examples

Rifka Aisyah Leave a comment

In this post I want to share with you the applications of butterfly valves and their examples. A butterfly valve can stop, regulate, and start the fluid flow. Due to its ninety-degree rotation of the handle and the disk, the valve is quickly and easily operated.

Butterfly valves offer many advantages over ball, gate, globe, and plug valves, such as lower cost, less weight, less space requirements, and lower maintenance cost. The maintenance cost is relatively low because of few moving parts.

Butterfly valves are usually selected for utility services and low pressure gas services, with pressure class 300 and lower.

Applications of Butterfly Valves and Their Examples
Applications of Butterfly Valves and Their Examples

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Application of ball valves and their examples

Applications of Ball Valves and Their Examples

Rifka Aisyah Leave a comment

In this post, I want to share with you the applications of ball valves and their examples. In my experience, many oil and gas projects use ball valves a lot. What are the advantages and disadvantages of using ball valves, and what are their applications?

Ball valves are frequently selected for process and aggressive services containing hydrocarbon oil and gas. Ball valves are used for on/off purposes only, not for flow control (throttling). Read More

Rotary valves

Get to Know About Rotary Valves

Rifka Aisyah

A rotary valve, also known as a rotary-motion valve, rotary airlocks, or rotary feeders, controls the flow of liquid or gas through the connected pipes by rotating one or more passageways in a transverse plug. The function of rotary valve is to meter the flow of granular bulk or powders. With small pressure loss, material enters the valve by a hopper or other inlets, processed by the valve rotor, and then deposited in discrete packets onto a conveyor system.

Purpose of Rotary Valves

The major purposes of rotary valves are:

  1. To offer an airlock (pressure seal) between two processes that are next to each other
  2. To provide solids metering (feeding)
  3. To provide a pressure seal and solids metering combined for feeding solids into a pneumatic conveying system.
Rotary valves
Rotary valves

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Ball valve and Plug Valve

Differences between Ball Valves and Plug Valves

Rifka Aisyah

The flow of liquids and gases can be controlled using valves in a variety of settings. Valves come in a variety of types, functions, porting, durability, and control capabilities. On the other hand, plug valves and ball valves serve the same purpose. They both regulate the flow of gas or liquid using either a straightforward on/off function or a multipath function. So, what are the differences between those valves?

In this post, I want to share the differences between ball valves and plug valves in terms of body structure, function, application, and maintenance. And on the last post, we will learn how to choose the right one. Before we jump into the difference between those valves, let’s learn some basics about ball valves and plug valves.

What Are Ball Valves?

Ball valves are valves with an internal spherical disc. There is a port, or hole, in this disc. When the port and both ends of the valve are lined up, the valve is in the open position, enabling the medium to freely flow through it. When the port is perpendicular to the ends of the valve, the valve closes, and the medium flow stops. Read More