Oil pumps have long appeared and become practical tools for oil and gas exploitation and transportation systems in general and oil refineries and oil production. In this article, Thai Khuong shares with you information about the oil pump lines that have been and are used. What is an oil pump? Oil pumps are essential equipment …
Category Archives: Industrial Valves
Industrial valves are the common name for valves used in industrial production environments. When it comes to valves, we talk about a mechanical device that switches off, mainly used for vapors and liquids. With the research and development of technology, many valve lines were born to serve different specialized applications. For more information, please refer to the information provided by Thai Khuong below!
An industrial valve is a mechanical device used in the pipeline system in the industry, used to open, close, adjust and control the flow and flow through the pipeline.
Industrial valves widely use in food production, beverage production, animal feed & aquatic product production, garment & textile industry, chemical production, supply industry, and water treatment…
Industrial valves have many different models and types. Depending on the medium used, the installation location, and the need to use the valve, it is possible to choose the appropriate variety of valves to open or close or adjust the ratio of the refrigerant inside the pipeline.
On the market today, there are many different types of valves, but the most commonly used include valves such as:
With the design, as shown above, the ball valve consists of a circular ball and has a hole through the center of the ball. According to the standard plan, ball valves divide into two types:
- Full bore type
- Type Reduce bore
Ball valves generally recommend for use in fully open or fully closed positions. They are not suitable for regulating flow by being held partially open because ball valves use a sealing ring between the stem and the ball. When used in the partially open position, the pressure will only be somewhat in the valve seal, which causes the valve gasket to deform with long-term use. If it bends, its sealing ability will be lost and lead to leakage or reduced valve life.
- They have a compact and low-maintenance design that requires no lubrication
- They are cost-effective among all valves
- They open and close quickly.
- Ball valve has a flexible multi-way design.
- Ball valves are not suitable for permanent throttling.
- In residual liquid, particles in the liquid collide with surfaces and stick to them. It can cause leaks, wear, and other problems.
- Ball valves control flow and pressure for corrosive liquids, slurries, common liquids, and gases.
- They are used in the oil and natural gas industry, chemical storage, and even civil use in many manufacturing sectors.
For the butterfly valve design, the flow regulates a disc-shaped plate located in the center of the valve by a vertical rod. As for the ball valve, the valve’s opening and closing times are fast because the disc rotates a quarter-turn (90°) to open or close for flow.
Simple construction, lightweight, and neat design are standard features of butterfly valves. Their face-to-face dimensions are microscopic, resulting in lower pressure losses than globe valves. Because the material used for the valve disc and the sealing gasket between the body and the valve disc will correspond to each medium, so this type of valve is limited to high temperatures or a specific type of fluid—butterfly valves commonly used in applications such as water or gas and large diameter pipes.
- Butterfly valves are exact, which makes them advantageous in industrial applications.
- They are pretty reliable and require very little maintenance.
- They can regulate the flow.
- They can be installed or removed without deflecting the ductwork
- The butterfly valve does not close tightly
- The mechanism that affects the pressure across the valve
- Butterfly valves can use in pharmaceutical, chemical, and food processing services.
- They use for corrosive liquids at low temperatures and pressure.
A Globe valve is a valve with a wide range of applications, from flow rate control to operation closing.
For globe valves, the control of flow rate is not determined by the size of the sealing gasket nor by the lift of the disc. A rather good feature of globe valves is that if the valve is in the partially open position, the risk of the refrigerant used damaging the sealing gasket or disc balloon is less than with other types of mechanical valves. With standard industrial valve products, globe valves are the most suitable valves for flow rate control.
A feature of this valve is that the pressure loss in the globe valve will be much more significant than that of other valves. Because the design of the flow through the valve is S-shaped, the operating time of the valve also increases because the globe valve operates by rotating 360°. And the valve has to turn a few turns to be able to close or open the full stroke of the valve, with the design of the globe valve being able to open and close the flow slowly and proportionally. So this valve is often used in systems such as Steam, hot oil, hot water, … Because when the system is in use at high pressure, sudden opening and closing of the valve can lead to a situation pressure shock, affecting the equipment inside the valve or the equipment mounted on the front.
- Throttle valve fully closed feature.
- Shorter opening and closing time.
- They can be used as check valves.
- Higher pressure loss
- To close under high pressure, a globe valve needs a more significant force or a high torque actuator.
Globe valves mainly use for throttling purposes. They can think of as general-purpose flow control valves used for high-temperature applications.
The structure of this valve is similar to that of the drain port. Flow controls by raising or lowering the valve disc.
Like globe valves, gate valves do not commonly use in flow regulation. One reason is that the valve gate can be damaged when it is in a partially open position. Likewise, it also minimizes the loss of total pressure when the valve is fully open. However, placing the fully open or fully closed valve requires a slow opening and closing stroke and a 360° rotation. And it takes many turns to be able to close or open the valve’s travel fully. Gate valve is the valve with the longest operating time among the valves, as mentioned above.
- Gate valve contains shallow friction loss
- They can use both ways in the circuit
- Gate valves save energy and reduce total investment costs
- There will be a low-pressure drop when fully open and closed Defect
- Unable to open and close the gate valve quickly
- They cause vibration
- The operation, maintenance, and repair of gate valves are very complicated.
- Gate valves are suitable for use in high temperature and pressure conditions.
- They are used for open/closed applications.
Check valves are pretty standard, and they use in many gas or liquid pipelines. Non-return valves are special designed to allow only one way through when installed in a conduit system.
Non-return valves often use for pump protection, flow control, and avoidance of fluid loss in pipelines,…
We will quickly encounter one-way valves in fire protection or water supply and drainage systems…
As the name suggests, a safety valve is an industrial valve designed with two inlets/outlets. The function and duty of the safety valve are to protect the systems from pressure surge beyond the set value. They use boiler systems, petrochemical systems, gas systems, etc… in many industries such as garment, textile…
In principle, the safety valve operates according to the set value. That is, the input pressure value increases beyond the allowable pressure of the valve. The safety valve will release the residual pressure to bring the system back to its original steady state.
Pressure reducing valve
The pressure relief valve is a specialized valve. Use it at locations where the outlet pressure value needs to reduce equal to or lower than the input pressure. Therefore, they have also considered safety valves to protect the equipment at the outlet of the system.
They divide into two types:
- The direct-acting pressure relief valve
- The indirect-acting pressure relief valve
A control valve is a device capable of regulating flow to varying degrees between minimum flow and total capacity in response to signals from an external control device. The control valve often referred to as the “final control element,” is an essential part of any control loop. It does the physical work and is the element that directly affects the process.
Control valves are known for two control sources:
- Electric control
- Pneumatic control
Each type will correspond to different applications. For example, pneumatic control valves will use in many hazardous environments with high fire and explosion prevention. Electric control valves will more commonly use on many lines, production, or distribution systems of steam and fluids.
As part of an automatic control system, the control valve helps the system operate fully automated thanks to the control program and the sensors that work in harmony with each other on the SCADA or DCS system…
Industrial valve application
Industrial valves are standard electromechanical devices. They use in many industries, including in daily life or heavy industrial production…
We will encounter industrial valves present in:
- Piping systems for domestic water supply
- Pharmaceutical and cosmetic production system
- Use in the biotechnology industry
- Garment, textile, and leather industries…
For advice on choosing the correct industrial valve for the medium you are dealing with, contact Thai Khuong to get the most optimal and practical solutions. In addition, you can refer to the specifications of the existing industrial valves in Thai Khuong according to the information below!
Pros of Horizontal Centrifugal Pumps Easier installation and maintenance as the internal parts like the rotor are easy to access. Opt for an overhang shaft design for applications that require low suction pressure. Opt for in-bearing shaft design for applications that require high suction pressure. Secure coupling with external accessories like engines, electric motors or …