In industrial processes, water is used to manufacture products, for cleaning purposes or as an auxiliary medium for heating or cooling processes. On contact with pipe systems, process media or even the air, this water gradually becomes contaminated and must therefore be cleaned. With the WF300 series of screen filters, SMC offers a way of efficiently removing foreign bodies from process water.

Four different and interchangeable filter inserts allow the degree of cleaning to be flexibly adjusted. The filter inserts with 100, 70, 50 and 25 meshes per inch are made of stainless steel and are particularly durable. They are also quick to change and can be reused over many cycles after cleaning. The permanent cleaning of the process water protects the downstream system elements and makes the processes less susceptible to faults.

The WF300 series strainer filters are made of cast bronze and brass and are available in three connection sizes: 1/4, 3/8 and 1/2 inch. Approved for ambient and media temperatures from five to 80 degrees Celsius, they can be used up to a maximum operating pressure of 1.18 MPa. With a length of just 66.5 millimetres and a weight of less than 0.3 kilograms, they are particularly compact and can be integrated very quickly and easily, even in tight installation spaces.

The functions of the WF300 screen filters can be expanded with the WR110 series pressure regulators and the INA-14-290/XTO-674 series non-return valves. In applications where, for example, the pressure in water pipes needs to be adjusted, the combination of WF300 and WR110 allows media cleaning and feeding to be integrated very compactly in one unit. SMC offers the WR110 series pressure regulators in two sizes with a setting range from 0.08 to 0.39 MPa and from 0.05 to 0.69 MPa.

The WF300 series screen filters help to remove foreign bodies in process water pipes. "Typically, these are the cooling water circuits of machine tools, welding guns, vacuum chambers or casting molds," explains Sandra Spreuer, Product Management SMC. "But we also know that they are used in the printing industry, for example, to improve the quality of the spray water used to moisten the paper." as