Plant Processing

Light weighing control valve

Sliding gate control valves are easy to handle, compact, light and very precise. They provide accurate, fast and economic control of liquid, steam and gaseous media. At the heart of all sliding gate valves are two slotted discs, sliding across and against each other and forming a seal. One of them, the sealing plate, is permanently fixed in the valve body perpendicular to the direction of flow and has a certain number of transverse slots. The second disc, aligned so that it cannot rotate, has the same slot arrangement and moves perpendicularly to the sealing plate, thus changing the cross section of the flow. The pressure difference acts on the moving disc, forcing it against the stationary disc. This provides the seal in the sliding gate valve without the need for a metallic seat.

This superior structural principle forms the basis of a very short and compact construction, its very low weight inherent in its design. As a result, the DN 250 sliding gate valve weighs a mere 50 kg, including its actuator, whereas a globe valve of the same nominal size tips the scale at about 500 kg. The DN 250 sliding gate valves from Schubert & Salzer Control Systems are available in PN 16 and ANSI 150 versions and, in summary, open up not only advantages for the process but also provide a tremendous savings potential through very low costs during their service lives.
Hall 11.1, Booth F46

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