Diaphragm valves are an important element in many installations, playing a key role in ensuring the safety and efficiency of systems. These are devices that allow you to control the flow of substances in pipelines and other installations, while protecting against unwanted leaks or failures. How do they work and what are the benefits associated with their use?
Check out the diaphragm valves at the Onninen wholesaler
Types and Benefits of Diaphragm Valves
In hydraulic installations, one of the key issues is to ensure a high level of tightness to ensure the efficiency of the entire system. The use of diaphragm valves is a good solution because they allow you to regulate the intensity of flows in the installation. This feature is one of the greatest advantages of this solution.
There are two main types of products among diaphragm valves. The first are through valves, which are characterized by the fact that the liquid can flow inside the installation without any restrictions. This effect was achieved by using special diaphragms made of highly elastic materials. Closing the valve and stopping the fluid in the system means that the diaphragm must be durable. Due to their specific parameters, these models will work perfectly in pipelines that are adapted to transport thick and viscous liquids, as well as suspensions and sludges.
The second variant are weir valves. They differ from the first in their method of operation and construction. Inside the body, in its central part, there is a special outlet, the task of which is to limit the passage light inside the valve. The membrane in this model is smaller than in the first variant, but it must be thicker and heavier. This construction makes it characterized by higher resistance to high pressure and temperature. The weir variant of the membrane valve is used primarily in the food industry.
According to another classification, valves can be divided into: direct, indirect or combined action valves. Depending on the product variant, it operates at a different pressure. For example, in indirect valves, a certain minimum pressure is necessary to open the system.
Among the benefits of using membranes in valves, the durability and reliability of such a solution should also be mentioned. Additionally, they allow for very precise control of the correct operation of the entire system.
Principle of operation of the membrane in the diaphragm valve
The detailed way a valve works depends on its type and specification, but in principle, a general principle of operation can be indicated. The elastic membrane inside bends, thereby limiting the flow of the substance in the system.
The membranes in the valves are made of polymers with different properties. It happens that some products are equipped with a silicone membrane.
Application of diaphragm valves
Due to their durability and advantages related to the specificity of operation, diaphragm valves are widely used in many industries. They are particularly useful where conditions are difficult. Diaphragms are resistant to corrosive substances, as well as those that could cause problems with permeability or lead to damage. Examples include viscous liquids, oily, fibrous suspensions or liquids containing solid particles.
Due to the fact that diaphragm valves allow for effective isolation of the medium in the system from the external environment, they can be used where high hygiene is required. The diaphragm valve allows for aseptic conditions.
The membrane structure is widely used in the food industry. Due to the specificity and the need to maintain sterility, weir valves are usually installed, because their advantage is the possibility of self-cleaning. The solution will work perfectly in the process of producing food, purees, juices, drinks.
Diaphragm valves at the Onninen wholesaler
The Onninen installation wholesaler offers diaphragm valves for mechanical pumps used in industrial installations. Made of stainless steel, they are characterized by exceptionally high resistance to chemicals.
Wilo diaphragm valve DN 100/PN 16 is a device that can work in systems with a wide pressure range. Compared to other proposals, the diaphragm valves available at Onninen are very universal models that can be successfully used in various industries. The closing and opening mechanism guarantees safe and stable operation, regardless of the load size. Reliability of operation, high-quality components from which the valves are made mean that they can be part of virtually any installation, ensuring its correct operation, regardless of the difficult conditions in which it will operate.