Ventilation Valves (LDK)

The design of ventilation valves is adapted to the requirements of ventilation systems. Depending on the application they are screwed or clamped between flanges in pipelines. While the lengths of flanged valves is variable, the lengths of the clamped versions are limited by the material cast due to the material thickness. With the flanged version we can achieve an improved impermeability by customized deign. An advantage of the clamped valves is their lightweight construction.

LDK-1

The throttle valve type LDK-1 is a lightweight valve in the fields of control technology and shut-off technology. They are clamped between flanges according to DIN 24154 T2R2/R4 in pipelines. The valve LDK-1 stands out due to its compact and lightweight design. It can handle differential pressure up to 100 mbar.

According to your application (temperature and medium), we produce the LDK-1 in any material available on the market. The standard mounting position of the valve is provided with horizontal shaft, but customized solutions are available on request.

LDK-1 - Standard Configuration
Sizes (DN)	63 - 1000 (intermediate sizes viable)
Type	Clamp-in
Standards	DIN 24154 T2R2/R4
Operating Temperatures	-100°C bis +1100°C
Operation options	With free shaft-ends Manual operation with a grid handle with locking mechanism Continuously variable fine adjustment A corresponding shaft adaption with the DIN ISO 5211 mounting kit With an attached actuator (pneumatic, electric or hydraulic)

LDK-1 - Closing Types and Impermeability Classes
Swing Through	99% impermeability compared to fully opened disk
With a Stop Bar in the Body	99,5% impermeability compared to fully opened disk
With a Stop Bar and Gasket	99,95% impermeability compared to fully opened disk
Sealing Air	-

We implement the gasket seal for sizes from DN 100 to DN 315.

More Information

JASTA Valve LDK / Product Brochure PDF File

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Application Areas

References

EBNER Industrieofenbau Gesellschaft m.b.H., Leonding / Österreich
KGO GmbH, Wetter
Recker Ziegelwerk Berentelg & Hebrok OHG, Recke
TANN Europe GmbH, Essen

LDK-4

The flange-throttle valve type LDK-4 is mounted between flanges according to DIN 24154 T2R2 in pipelines. The valve LDK-4 stands out due to its compact design and can handle differential pressure up to 100 mbar. We can produce this valve from any materials available on the market, depending on the application (temperature, medium, pressure).

With our three sided coated sealing gasket we can offer leakage rates of max. 0,05% of Kv 90°. To achieve a leakage rate of 0%, the valve will be equipped with a double jacketed gasket and charged with sealing air.

The mounting position of the valve standardly is provided with horizontal shaft, but upon request customized solutions are available.

LDK-4 - Standard Configuration
Sizes (DN)	63 – 2000 (up to 3000 possible as a custom order)
Type	Flange valve
Standards	DIN 24154 T2R2/R4 (every pattern of drilling available upon request)
Operating Temperatures	-100°C to +1100°C
Operation options	With free shaft-ends Manual operation with a grid handle with locking mechanism Continuously variable fine adjustment A corresponding shaft adaption with the DIN ISO 5211 mounting kit With an attached actuator (pneumatic, electric or hydraulic)

LDK-4 - Closing Types and Impermeability Classes
Swing Through	99% impermeability compared to fully opened disk
With a Stop Bar in the Body	99,5% impermeability compared to fully opened disk
With a Stop Bar and Gasket	99,95% impermeability compared to fully opened disk
Sealing Air	Up to 100% impermeability