Pneumatic Goggle Valve
Resistant
Sealing
Operation
Long Life
Alis Valves is a leading manufacturer of Pneumatic Goggle Valves designed for safe and efficient isolation in high-temperature and gas handling systems. Also known as Pneumatic Spectacle Blind Valves, these valves use a pneumatic actuator to automatically switch between the blind plate and spacer, ensuring complete shut-off or full flow. Ideal for hazardous and critical applications, they eliminate manual handling and enhance operational safety.
Specifications
Size Range
DN50 to DN2000
Body Material
Carbon Steel, Alloy Steel, Stainless Steel
Actuation
Pneumatic Cylinder
Operation
Automatic (Open / Close / Blind Position)
End Connection
Flanged
Media
Gas, Air, Flue Gas, Dust
Pressure Rating
PN10, PN16, PN25 / ANSI 150, 300
Plate Material
Carbon Steel / SS (Optional Lining)
Air Supply
4 to 7 Bar
Sealing
Metal to Metal / Soft Seal (Optional)
Temperature Range
Up to 600°C
Leakage
Zero Leakage (Positive Isolation)
Product Images
Frequently Ask Questions
A Pneumatic Goggle Valve is a positive-isolation valve operated by a pneumatic actuator. It uses a goggle or spectacle plate to physically isolate a pipeline from the process system.
A pneumatic cylinder moves the goggle plate between its open and isolated positions. The sealing mechanism then provides the required isolation of the pipeline.
A blind flange provides a fixed physical blockage and normally requires manual removal for line opening.
A goggle valve provides a movable physical isolation plate, allowing the line to be opened or positively isolated through valve operation.
Its main advantage is positive physical isolation combined with fast pneumatic operation. The position of the goggle plate also provides a clear indication of whether the line is open or isolated.
A spectacle blind is generally manually repositioned between open and blind positions.
A pneumatic goggle valve is a complete actuated valve assembly that allows the isolation plate to be operated remotely using pneumatic power.
Alis Valves is a Pneumatic Goggle Valve manufacturer and supplier in India, providing positive-isolation valve solutions for steel plants, blast furnace gas, coke oven gas, gas cleaning plants, power plants and industrial process-gas applications.
