For high pressure, high temperature and ATEX areas.
Customization and integration into existing systems – including ISO 5211 interfaces.
Hygienic fittings for sensitive production processes with high cleanliness requirements.
Safe shut-off and control of aggressive media, even at high temperatures and pressures.
Control of steam, hot water and cooling circuits for maximum efficiency and safety.
Drinking water treatment, process water control and waste water treatment for municipal and industrial systems.
Integration into complex systems for precise control and reliable operation.
The GD-6 ring throttle valve is manufactured up to DN 2000 as standard and up to DN 5000 as a special version.
The temperature range of the GD-6 extends from -100 °C to +1100 °C.
100 % final inspection, pressure and leak tests, material certificates.
Available with 99 %, 99.8 % and 99.98 % tightness relative to the fully open disc.
With a mounting kit to DIN ISO 5211 and matching shaft adaptation, any actuator available on the market can be fitted.
O-rings or shaft seals in EPDM, FPM, NBR or PTFE.
We trade in Jasta valves and supply from the manufacturer range. The GD-6 ring throttle valve is the series we supply most often – we can source the complete Jasta range, including series not listed here.
The GD-6 is not a standard butterfly valve but a ring throttle valve with a full cast disc. Its field of use goes far beyond what soft-seated valves can achieve – and it is the reason why we point to Jasta for flue gas, hot air and high-temperature processes.
| Feature | Value |
| Nominal sizes | DN 15 to DN 2000 as standard, as a special version up to DN 5000 |
| Temperature | −100 °C to +1100 °C |
| Materials | can be manufactured from any material available on the market – the choice depends on temperature, medium and pressure |
| Tightness | available in three grades: 99 %, 99.8 % and 99.98 % relative to the fully open disc |
| Actuator | with a mounting kit to DIN ISO 5211 and matching shaft adaptation, any actuator available on the market can be fitted |
| Shaft sealing | O-rings or shaft seals in EPDM, FPM, NBR or PTFE |
The three-grade tightness is a selection criterion that is often overlooked: a throttle valve does not have to close tightly if its job is to modulate. Anyone who needs a shut-off function chooses the higher grade – anyone who throttles saves with the lower one.
Our standard is the unchanged series version from the Jasta range. Because the GD-6 is manufactured to the application, the choice of material is part of the design here:
