The bidirectional water-stop cast iron gate is a type of cast iron gate equipped with bidirectional water-stop functionality, primarily used in scenarios such as sewage treatment and urban drainage to prevent backflow of wastewater. Its core features include:
Structural Characteristics
It adopts a cast iron main structure, equipped with copper alloy or stainless steel sealing materials. Through a dual design of metal water-stop components and rubber soft sealing rings, it achieves bidirectional water-stop performance, with forward leakage controlled within 0.7L/min·m.
Sealing Design
It utilizes L-shaped guide rails and reset springs in coordination with sloped grooves to ensure the gate plate tightly fits the frame during both opening and closing, forming an effective seal.
Application Scenarios
Suitable for water discharge control at reservoir bottom outlets, regulation of urban drainage pipelines, and sewage treatment, supporting both manual and electric operation modes. Its weight is only one-third that of traditional steel gates, making it easy to install in narrow spaces.
Maintenance Requirements
Lubricate moving parts with grease quarterly to prevent rust. After installation, conduct no-load opening/closing tests and a 10-meter head pressure test to ensure sealing performance.