Pressure regulator & Valves for Petroleum & Petrochemical
Petrochemicals are chemical products obtained from petroleum. Petrochemical production requires multi-phase processing of oil and associated petroleum gas.
Our wide range of pressure regulators and changeover systems are ideal for petrochemical applications with features. Jewellok regulators include single stage, two stage, heated, forward reducing and back pressure, amongst others.
Control valves in oil, gas and petrochemical industry
What is it?
A control valve is a device which is power-operated practically
used to manipulate or regulate the flow of fluids, such as oil, gas, steam & water.
Being a critical part of the control loop, it is an example of a final control element. The Control Valves are one of the most preferred final control elements in the various industries.
Why is it used?
Usually, the processing plants consist of thousands, of control loops that are all connected together to manufacture a product that is to be sold. Every control loop is designed and planned to maintain important procedures such as flow, pressure, temperature, level, etc. within a particular operating range that is required to ensure the quality of the end product.
How does it function?
The actuator one of the main devices in the valve which is connected to the valve through the stem that provides the force which is required to move the valve. Control valves can be operated pneumatically, electrically or hydraulically. It receives a signal from the controller such as a Programmable logic controller (PLC) for it to move resulting in a flow change. Since the signal is electrical, the control valve might require a device or component to convert all those electrical signals for its operation.
What are its types?
Valve bodies are of different types depending up on the service conditions, piping layout, and desired applications. The two types of control valves that are in common use are Rotary and Linear Motion control valves.
Where is it used?
The Control valves are used in water treatment plants, irrigation systems, oil and gas plants, fire prevention systems, power generation, food processing industries by streamlining the reply to changes taking place in processes by providing better safety to both personnel and equipment. It is the duty of the control valve suppliers and valve manufactures to ensure that the customer is offered with a valve that is perfect for their intended usage.
Oil & Gas Industry
Valves are an important organ of any piping system, which means that they have a vital role in the oil & gas industry. They are used to isolate & protect equipment, to control flow rates, and to guide & direct the refining process of the crude oil. Specifically, these valves provide a mechanism to control the process over flow rate, temperature and pressure in the oil & gas industry. They basically function by varying the size of the flow pathway as directed by either an electrical, a hydraulic or a pneumatic signal that is sent from the controller. The automatic operation of these valves gives them an ability to be remotely operated, instead of having an operator for constantly monitoring and adjusting.
Petrochemical Industry
The functions of a flow control valve in the petrochemical process that are complex is the key, since multiple loops that are involved in the process should be kept under dynamic and strict control to make sure that the process, on the whole, works as it is intended and produces the desired output in that is quantitatively, qualitatively and timely perfect.
How we differ?
We Jewellok are one of the leading valve manufacturers in China. With our team of brilliant engineers, we ensure to bring in to consideration many factors in order to design and manufacture a perfect control valve. Our European origin valves are designed and manufactured using our latest technology that is original and reliable. Our computerized system helps the team to determine the most perfect control valves design and its features based on their process parameters according to the customer requirement.
5 Most Common Types of Petrochemical Valves
Valves are used in a variety of industry types in order to control flow and pressure of liquid, gas, oil, vapor, etc. They effectively control the piping system, which is especially critical when working with chemicals and extreme pressure/temperature as you do in the petrochemical industry.
Petroleum is used for a number of applications in everything from creating plastics to rubber, and the petrochemical industry works at refining these products as well as fiber raw and natural gas materials.
While there are many types of valves out there, this article is going to detail five of the most common petrochemical valves. We’ll detail how the valve works and what it does for the petrochemical industry.
1. Plug Valve
This cylindrical or cone-shaped valve works to either allow or stop (aka “plug”) the flow. It switches between the “open” and “plugged” position via rotation.
In the open position, the internal hollow passages are open and allow the liquid and/or chemicals to flow. In the “plugged” position, the valve is rotated to block the hollow internal passages and stop flow. Check out this video to see a visual of how this works.
Since they are high-capacity valves that can handle high temperatures and function best in low-pressure applications, they are often used in petroleum pipelines.
2. Globe Valves
Globe valves work only in one direction, so you must make sure to install them correctly. They can be used to stop and start flow with high precision, which effectively regulates many pipe systems. These type of valves are often used for oil, fuel, and chemical control and transport in the petrochemical industry.
They’re versatile in their design and are easy to maintain, which is great for this industry.
3. Knife Gate Valves
Petroleum is a viscous and thick substance, which is why knife gate valves are often used. Knife gate valves can easily cut through thicker substances and fluids like petroleum. However, they aren’t good under high pressure, which limits their versatility.
As the name suggests, this valve uses a knife-like blade that physically cuts through thick substances to regulate flow.
4. Slide Gate Valves
The slide gate valve is a linear motion valve that, unlike the knife gate valve, is designed to handle dry powders, granules, pellets, etc. It uses a sliding plate, as opposed to the blade in a knife gate valve, in order to stop the flow of dry materials.
Depending on the application in the petrochemical industry, you could use either a knife gate or a slide gate valve.
5. Vacuum Relief Valves
Vacuum relief valves are also called “breather” valves because they provide pressure and temperature relief to pipes and tanks.
Many areas of the petrochemical industry will result in building high pressure and temperature that needs to be relieved to avoid dangerous explosions, damage, and other consequences.