The JASTA GD-6 is a robust ring throttle valve for extreme applications, high temperatures and demanding process media. Thanks to its solid construction, wide range of materials and variable sealing systems, it is ideal for high-temperature processes, flue gas lines, industrial drying and dust extraction systems as well as furnace and plant construction. The GD-6 can be individually configured and is precisely adapted to the respective operating conditions.
Special features
- Temperature range from -100 °C to +1100 °C
- Very high tightness (99 % to 99.98 %, depending on the version)
- Available in all common wafer types
- Wide range of materials for body, pulley and shaft
- Ideal for abrasive, dust-laden or aggressive media
- Low-maintenance and durable design
- Mechanical or automated actuation possible
- ISO-5211-compliant drive design
- Optional: water-cooled versions, special geometries, combined lever systems
Advantages
- Excellent for extreme temperature changes
- Very flexibly adaptable to medium, pressure and environment
- High functional reliability even with contaminated gas flows
- Precise control and reliable shut-off
- Can be precisely matched to the required tightness thanks to various closure types
- Perfect for continuous industrial loads
- Compatible with pneumatic, electric and hydraulic actuators
Variants & versions
- Nominal sizes
Standard: DN 15 – DN 2000
Special versions: up to DN 5000 - Wafer types
PN 6, PN 10, PN 16
ANSI 150 / 300 / 400
Other standards on request - Tightness classes
Leak-through: approx. 99 % tightness
With stop bar: approx. 99.5-99.8 %
With stop bar + sealing insert: up to 99.98 %
With sealing air: up to 100 % - Material options
Body: Cast iron, heat-resistant cast alloys, structural steels, stainless steels, duplex
Disc: Cast iron, steel, stainless steel, heat-resistant steels
Shaft: Stainless steel, heat-resistant, special materials - Actuation
Free shaft end
Handlever with detent
Infinitely variable fine adjustment (SFD-6 / RDST-32)
Manual gearbox
Pneumatic, electric or hydraulic actuators
ISO-5211 mounting kits - Shaft seal
Stuffing box packing
O-ring / shaft seals (EPDM, FKM, NBR, PTFE)
TA air version possible
Sealing air connections for 100 % tightness
Areas of application
- Blast furnaces, smelting plants, foundries
- Cement and lime works
- Industrial furnaces (steel, aluminum, ceramics)
- Power plants and energy systems
- Flue gas, hot gas and exhaust air systems
- Drying, ventilation and dust extraction technology
- Systems with abrasive, dust-laden or aggressive media
- Biomass combustion, biogas, process waste gases
