Steel gate 2*2.5 meters: farmland irrigation

1. Core materials and specifications
The steel gate is made of high-strength carbon structural steel such as Q235B and Q355B as the main raw material, and stainless steel materials (such as 304 and 316) can be selected for some special working conditions to ensure excellent impact resistance and load-bearing capacity in complex environments. Common specifications cover a wide range of sizes, from 0.5 meters to 10 meters in width and 0.5 meters to 8 meters in height, and can be customized according to engineering needs to suit different flow rates, heads, and installation space scenarios.
2. Structural composition
Door body: welded or assembled with a single piece of steel plate, the thickness of the panel is designed according to water pressure, generally 8-30mm, to ensure structural rigidity. The edge of the door body is equipped with reinforcing ribs to improve the overall resistance to deformation.
Sealing system: standard EPDM sealing strip, with aging resistance, good elasticity, bolted or vulcanized bonding to connect with the door body, sealing gap ≤ 0.1mm, to ensure the water-stopping effect. Under special conditions, it can be upgraded to polyurethane seals for better wear resistance.
Traveling mechanism: For gates that need to be moved (such as sliding and rolling), they are equipped with bronze sliders or stainless steel rollers to reduce the friction coefficient, make the opening and closing more labor-saving, and run smoothly without lag.
Connecting parts: High-strength bolts (grade 8.8 and above) or welded connections, and the welds are non-destructive testing (UT/MT) to ensure the strength and tightness of the connection.
3. Performance parameters
Working Pressure: 0.1-1.0MPa (Customizable High Pressure Models)
Applicable media: water, sewage, mildly corrosive liquids (pH 4-10)
Opening and closing speed: 0.1-0.5m/min (can be adjusted by the opening and closing machine)
Ambient temperature: -20°C-60°C
Anti-corrosion life: 5 years for conventional spraying ≥treatment, 15 years for hot-dip galvanizing treatment≥ and 20 years for fluorocarbon spray≥ing
4. Customized services
Support personalized customization according to actual project needs, including:
Special size (ultra-wide, ultra-high) and special-shaped structure design
Anti-corrosion process upgrades (e.g. cathodic protection, glass flake coating)
Selection of supporting switchgear (flashlight dual-purpose screw type, windlass type, etc.)
Equipped with intelligent monitoring components such as limit switches and displacement sensors
5. Installation and maintenance
Installation: Provide detailed installation drawings and technical guidance, and the installation deviation between the door body and the gate groove is ≤3mm to ensure smooth opening and closing.
Maintenance: Regularly check the wear of seals, add grease to the traveling mechanism every year, repair the damaged parts of the anti-corrosion coating in time, and avoid overload operation in daily operation, which can effectively extend the service life to 15-30 years.
6. Application scenarios
It is widely used in water conservancy engineering (reservoirs, embankments, channels), municipal drainage (rainwater pumping stations, sewage interception gates), sewage treatment plants (sedimentation tanks, conditioning tanks), industrial wastewater treatment and agricultural irrigation, and is the key equipment for fluid control and dispatching.