Isolation Goggle Valve

• Total separation of the gas main in the closed position, thus ensuring no passage of the media from the upstream to the downstream gas main, i.e. „Man-Safe“ isolation.
• High operating temperatures in hot-wall or cold-wall design.
• Valve designed for temperature fluctuations.
• Mechanical goggle plate seating/clamping achieved by spring packages within the hydraulic rams. Opening/unclamping is effected by hydraulic pressure onto the rams.
• Dual circuit hydraulic systems available.
• Open structure or totally enclosed (bonnets) design.
• Venting to atmosphere of totally enclosed type in closed position.
• Valve actuation in accordance with customer’s requirements (man./electr./hydr./pneum.).
• Very low maintenance requirement.
• Diameters DN 400 - 5000
• Operating pressure up to 4,0 bar
• Operating temperature up to 1100°C
• Venting to atmosphere or save location of bonnets in closed position possible.

 Type I

• Uniformly arranged hydraulic rams on one side of the valve body that are able to both clamp and unclamp.
• Operating temperatures reach up to 1100°C (2000°F).

 Type II

• All mobile components are situated inside the traversing valve plate structure.
• Operating temperatures reach up to 400 °C (750 °F).

 Type III

Clamping, unclamping, and movement of closed discs or open rings is facilitated by electrical actuator, eliminating the need for hydraulics.

Swingtype

Compact Design for space-constrained applications (available in open and enclosed variants).

• No jamming of valve plates, not even under extreme operating conditions
• Wear-free travel of the plate from open to closed position & vice versa
• No utility consumption when valve is in open or closed position
• Tight shut-off in accordance with safety regulations

• Iron & Steel, Blast Furnace Gas
• Flue Gas
• Dust-Loaded Gaseous Media
• Crude Gas