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Help CenterFactory Sale of Cast Iron Gates, 2*2 Meters, River Gates, Steel Gates for Reservoirs
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Technical Features:
The PGZ series of flat cast iron arched gates follow the ministerial standards in all aspects, including design, manufacturing, installation, acceptance, anti - corrosion, raw material intake, component processing, technological processes, quality inspection, finished product sales, and after - sales service. As appraised by the Quality Inspection Center of the Metal Structure of the Ministry of Water Resources, they meet the technical requirements of water conservancy projects, and their product performance and manufacturing precision reach the leading level in the domestic industry. The PGZ series of flat cast iron arched gates have the following advantages: beautiful appearance, simple structure, flexible opening and closing, reliable operation, convenient installation, tight water sealing, good water - stopping performance, good water impermeability, strong corrosion resistance, ability to withstand large water pressure, small friction, good water flow control, reasonable water volume distribution, ensuring the safe operation of the river, long service life, and low maintenance costs.
Installation and Adjustment:
Before installing the PGZ series of flat cast iron arched gates, it is necessary to check whether the external dimensions of the gate match the reserved orifice of the second - stage cast cement structure foundation. It is advisable that the surrounding dimensions of the foundation orifice be 20 cm larger than those of the gate.
1. Before installing the gate, first determine the water flow direction, and then correct the correct height position of the upper plane of the bottom cross - frame of the gate. The upper plane of the bottom cross - frame of the gate should be 0.5 meters higher than the river bottom (or the canal bottom plane) to prevent floating objects such as stones, sediment, and miscellaneous wood from being washed into the bottom cross - frame of the gate by the water flow, which may cause the gate to fail to descend to the corresponding position and affect the water - stopping effect.
2. Before installing the gate, check whether the connecting bolts at various parts are loosened during transportation and handling. If so, tighten them with a wrench.
3. Check whether the water - stopping surfaces around the joints of the two vertical frames and the upper and lower gate frames are misaligned. If there is misalignment, loosen the connecting bolts with a wrench, adjust the surrounding water - stopping surfaces to be in the same horizontal plane, and then tighten them.
4. When assembling the gate, in order to make the water - stopping friction between the gate plate and the gate frame fit more tightly and reduce the gap after installation, pressure plate clips are installed on the upper and lower cross - frames of the gate, and jacking screws are added to the inclined irons of the two vertical gate frames. Note that after the gap is adjusted, the clips and jacking screws should be removed to avoid affecting the opening and closing of the gate.
5. When installing the gate, it should be installed as a whole. It is prohibited to install the gate plate and the gate frame separately to prevent the gate frame from bending and deforming, which may affect the water - stopping effect and opening and closing.
6. After the gate is hoisted into the reserved orifice of the second - stage cast cement structure foundation, make sure that the two vertical gate frames are closely attached to the plumb line with a long spirit level, and the upper and lower horizontal gate frames are closely attached to the horizontal line with a long spirit level. After the gate is hoisted into position as a whole, adjust its correct position in the front - back, left - right, and up - down directions, and then weld the adjusting anchor bolts firmly to the pre - fabricated steel bars of the project. Then use a feeler gauge to detect the gaps of each water - stopping surface. At the same time, adjust the gaps larger than 0.2mm with high - strength bolts to ensure that the gaps of each water - stopping surface are below 0.2mm. Support the two vertical gate frames on the back surface of the gate tightly with steel sections or wooden poles to prevent the two vertical frames from bending and deforming due to extrusion during cement pouring, which may affect the up - and - down sliding of the gate plate in the gate frame slideway. After confirming that there are no errors, the second - stage cement pouring can be carried out.
7. After the second-phase pouring of cement for the sluice gate, promptly clean up all the cement that has flowed into the gaps between the gate plate, gate frame, and tight pressing plate to prevent the solidification of cement from affecting the opening and closing of the sluice gate.
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