Features of Goggle Valves in Gas Pipelines

Gas pipelines transport flammable media, placing stringent demands on valves. Goggle valves, because of their unique structure, are commonly used on gas pipelines. Their features are as follows:

1. Strong sealing performance, zero leakage
Gas leaks can easily cause explosions and poisoning. Goggle valves often utilize a soft seal structure, using NBR or FKM as seals. When the insert plate squeezes the sealing material, they achieve “zero leakage.” Some double-disc valves can be filled with a sealing medium in the middle chamber, providing a double layer of protection and further reducing the risk of leakage. They are suitable for critical pipelines such as long-distance gas transportation and tank connections.

2. High safety, man-level safety design requirement
Gas pipelines are often used in flammable and explosive environments. Goggle valves can be remotely controlled with intelligent controls, such as pneumatic actuators, which eliminate sparks. Electric models are equipped with explosion-proof motors. Observation windows on both sides of the valve provide a visual indicator of the media status within the valve, such as the presence of residual gas and the integrity of the seals, enabling personnel to promptly identify problems and mitigate potential safety hazards.

3. Easy operate
Gas pipelines have different diameters and pressure requirements. Manual goggle valves can be used for small-diameter pipelines. Turning the handwheel controls the movement of the flapper, eliminating the need for external power and making them suitable for temporary shutoffs during maintenance. Large-diameter pipelines can be controlled with electric or pneumatic actuators, which can be remotely controlled and linked to a PLC system. In emergencies, the valves can quickly close and shut off gas flow, providing a fast response time

4. Wear-resistant,long life.
Gas may contain trace impurities, which can wear the valve over long-term use. The flapper and seals of the goggle valve are made of durable materials, and hard-sealed models are even welded with carbide. Daily maintenance is simple, requiring only regular inspection for seal wear and easy replacement, significantly reducing downtime and ensuring stable gas pipeline operation.

In summary, the goggle valve’s sealing, safety, operation, and durability perfectly meet the needs of gas pipelines and are a reliable safeguard for gas transmission systems.

If you have any technical or business needs regarding goggle valves, please contact our engineers: Fun Fan(Mr),Mb: +86-18135671959, Email: [email protected].