Burkert process and control valves. How to choose process valve?
Bürkert made a wide range of modular valves series for controlling processes. The company produces various equipment with different operating principles, control systems, and designs.
The main advantage of Burkert is the release of valves with a modular structure. This feature allows user to choose the most suitable configurations for required conditions and regional standards. It makes the series very flexible and customize.
There is the opportunity for the client to choose a number of variants of actuators, materials and regulation elements. Let's look at the main categories of burkert valves.
The company manufactures all parts in its own factories. The research groups of the concern are constantly working on their improvement. Moreover, due to such approach, experts check and measure the quality of materials and products at all stages of production. This option allows the customer to implement the wishes already at the stage of development and production.
Device selection always starts with its body. Its whole operation principle is mostly dependent on its housing design. The buyer should pay particular attention to the sort of flow materials with which the equipment will service.
There are special solutions for a number of industries: food & beverage, pharmaceutical, material processing, water treatment, etc. For example, pneumatic systems have their own requirements.
The choice of right type also depends on the physical and chemical properties of the medium (viscosity, temperature, and pressure).
In total, Burkert produces 4 main types of housings for process valves:
- Angle seat
The design of the case, in turn, is divided into two main categories. It depends on regulation requirements. Valves are available for both continuous and shut off control.
Angle seat valves
Angle seat process valves are the most common and easiest class of equipment for flow management. About the most popular model of angle seat valve you can read here: Burkert Type 2000.
Angle seat valve for continuous control works on the principle of «fit and forget». It does not require constant repair and maintenance.
Angle seat on/off valve quickly stops the flow, via closing the pipeline. Such devices have a high level of tightness and safety. It is the simple solution for on/off and process control applications.
Devices are available with port connection sizes from ½ inches (12,7 mm) up to 2 ½ inches (63,5 mm). The basic body materials are stainless steel and gunmetal. Standard connection types are NPT (national pipe thread), and weld or clamp ends.
There are two main options for placing these items. For materials that are easy to compress (air, vapors, gases), you can use the flow direction directly under the seat. This feature will save even more space in working zones. For water, oil, and other high-density media, it is best to place the flow over the seat (for operation without water hammer).
Burkert angle seat valves are a low-cost simple solution with high life cycle.
Globe continuous control valves are practical and reliable devices for industrial systems. Such devices are attached to the pipes using flanges. Standard connections for this type is ANSI flange.
Globe shut off valves are a standard regulatory process tool. The manufacturer equips them with a light and compact body to save space and to reduce the weight. Products are available with both metal and soft seals. These devices have 5 million life cycles in fluids and 1 million in steam. Each model has one of several connection options. Basic material for such assembly is cast stainless steel 316L.
Burkert Globe valves provide the best range of control in the category. They are commonly used for both gas and liquids.
Diaphragm continuous control valves have special design with media separation. They are quite popular in working with corrosive and abrasive substances. Such series are often used in areas with high hygiene requirements (medicine, food, drinking water etc.). The company produces a series of unique hygienic valves for these industries.
The main structural detail is a membrane. It separates the flow from the main valve components. Various sorts of materials (EPDM, PTFE, GYLON etc.) are available depending on the purpose.
Diaphragm shut off valves control both ultra-pure and viscous materials. They provide minimal contact with the medium and have a small dead volume.
Burkert diaphragm valves the most optimal solution for applications with high hygienic and sanitary demands.
Ball and butterfly valves
Ball valves perform the function of regulation in pipes with medium diameters (for example, with oil and gas). It is available in sizes from ¼ inch (6,35 mm) up to 8 inches (203,2 mm). Their life cycle is in the range from 250.000 to 500.000 cycles before it begins to leak.
They are mainly used for isolation. Standard materials are similar to the first two categories. Ball valves are rated up to 1200 psi.
Butterfly valves are also used for piping applications and have a disc-shaped control element. They are available with port connections of sizes from ½ (12,7 mm) to 48 inches (1.22 m). They are primarily operate in large diameter pipelines. Standard connection are ANSI, wafer and lug style flanges. The basic body materials are cast iron, ductile iron and cast stainless steel.
After selecting the type of the body, the customer needs to choose control parts and actuators. It is necessary to determine which model will correspond to the functioning of a particular production process.
Bürkert manufactures several main actuator types:
The concern also created its own actuator ELEMENT with FreshAir technology, which is an upgraded version of the classic models. Besides, to the basic ones, there are various additional versions (“dual” for example).
After choosing actuator, the consumer needs to pay attention to the regulation and data control options. The manufacturer produces devices with both centralized and decentralized control.
The concern's assortment also includes positioners, valve islands, sensors, controllers, switches, pumps and many other additional equipment for flow and mass management services. Additional parts will significantly upgrade quality and accuracy level. With correctly selected all the necessary details, the user will be able to configure the most efficient work.
The company has representative offices and subsidiaries in many countries. In addition to official representations, there are other equally reliable distributors of equipment.
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