Valves for steam

Due to its excellent suitability as a heat carrier, saturated steam is preferably used in thermal processes in a wide variety of industries.

Control valves for saturated steam:

Sliding gate valves are often the first choice for controlling saturated steam. They impress with their very compact design, particularly easy handling and long service life as well as their high control accuracy and dynamics. While a globe valve in size DN 150 weighs about 150 kg, the sliding gate valve only weighs just under 15 kg. This greatly simplifies the installation and maintenance of the valves. In addition, their small size makes them very easy to insulate, thus reducing heat losses.

Depending on the application, segmented disc valves, which are available in nominal sizes up to DN 800, or ball sector valves may prove to be useful due to their extremely high Kvs values. Both valve designs achieve outstandingly long service lives even with contaminated saturated steam.

Shut off valves or open/close valves for saturated steam:

Seat valves are particularly suitable for shutting off saturated steam. Their sturdy design allows well over 1,000,000 switching cycles with minimal wear and a long service life. Their high leak-tightness reduces the loss of steam in the system.

Superheated steam is mainly used in power plants to drive steam turbines at high pressure. Superheated steam can be conditioned with desuperheaters to make it usable as saturated steam for other processes.

Control and shut off valves for superheated steam:

Sliding gate valves are ideal both for shutting off and for controlling superheated steam. Depending on the version, they can cope with temperatures of up to 530 °C and nominal pressures of up to PN160! The differential pressure supports the sealing function of the sliding gate valve, so that leak rates of < 0.0001 % of the Kvs value are achieved (IEC 60534-4 leakage class IV).

Conditioning superheated steam:

Steam is a central energy source for a wide variety of processes, not only for energy suppliers, but for all operators of thermal plants such as manufacturers of sugar or paper. With the 5090 desuperheater, it is simple to control the pressure and temperature of the steam and to condition superheated steam for the respective consumer in the process. The 4-nozzle system of the desuperheater, which is connected in series, offers a large control spread and ensures an almost constant water pressure at the nozzles.

Due to its high humidity (condensate droplets), applications with wet steam are more likely to be found in the low-pressure sector, for example in smokehouses and laundries. A common wet steam application is also the production of climatic conditions in test benches (climate chambers).

Shut off valves for wet steam:

Their high leak-tightness as well as their simple and compact design make seat valves the first choice for open/close applications with wet steam. In stainless steel versions they are extremely corrosion-resistant even in humid environments. The robust design of these shut off valves enables long service lives with over 1,000,000 switching cycles.

Control valves for wet steam:

Ball sector valves combine high precision and an enormously high flow rate or high Kvs values. They are therefore ideal for controlling wet steam. Depending on the application, for example at higher pressures, sliding gate valves can also be useful due to their particularly compact design and lower weight.

Pure and ultra-pure steam are used, for example, in the production of pharmaceutical products and cosmetics, in food and beverage production, and for medical sterilisation..

Shut off and control valves for ultra-pure steam:

Pure and ultra-pure steam can be safely shut off and precisely controlled with the 6051 aseptic right angle valve. Thanks to EHEDG certification and optional type 8049 positioner, these valves are ideal for demanding sterile applications. All wetted components of the aseptic right angle valve are also FDA compliant and conform to USP class VI and directives (EC) 1935/2004 and (EU) 10/2011.

Contaminated steam poses a particular challenge in some applications, for example in the production of lime-sand bricks and aerated concrete, as well as in the evaporation of wastewater. With conventional seat valves, particles in the steam often lead to severe wear, with the associated leakage, and high operating costs due to increased maintenance expenditure.

Control and shut off valves for contaminated steam:

Due to their design, segmented disc valves are extremely resistant to particle-laden steam and are therefore often the first choice. Thanks to their special design, segmented disc valves are among the few valves that combine control accuracy even in extreme operating conditions with a high seal tightness, in addition to which they are hardly subject to any wear. They are therefore ideal for shutting off and precisely controlling contaminated steam, too.