The advantages of cast iron gate and cast iron gate defects; cast iron gate installation precautions

Cast iron gate mainly by the gate frame and gate two major components. The gate frame of the cast iron gate valve is the support member of the gate plate. In the running slide of the gate plate, the anchor bolts are installed and fixed in the second stage concrete of the sluice gate pier and the gate plate, and the entire water pressure to be transmitted to the gate plate is safely transmitted Into the lock room.

In order to scientifically and reasonably save materials and reduce self-weight, the cross section of the cast iron gate valve is made of lattice structure, the size of the load suffered by the section size and the operation of the gate are considered comprehensively. Gate is to be used to close and open the opening of the activities of the water retaining member, plate around the cast iron frame beam, in order to improve the strength of the gate, the board made of arched, arch central angle by sixty degrees design, To reduce the water pressure on it.

Cast iron gate installation considerations

1, Before installing the gate, first check whether the bolts in the connecting parts are loose due to the transportation and handling, and if it is loose, it should be tightened.

2, check the main frame and horizontal frame connected to the water stop there is a dislocation, if there is a dislocation then loosen the connecting bolt will stop surface adjustment in the same plane.

3, the installation of the gate should be installed in place as a whole, to prohibit the gate frame, gate separate installation to prevent the deformation of the gate frame.

4, before the second pouring the whole hoisting of the gate to find a good place around, the right place, and then adjust the bolt and the project with steel welding firm.

5, the gate before leaving the factory, in order to make the gate, the gate frame fit tighter, reduce the clearance after installation, more than 2 meters in the upper and lower horizontal bar installed on the horizontal plate clamp iron, wire. Note that after the gap adjustment will remove the top wire on the iron and the skew iron to open and close the gate.

6, pouring concrete, the flow into the gate, gate frame, slant iron, baffle clearance mortar should be cleared to prevent mortar coagulation affect the opening and closing

How it works: Gate sealing surface and seat sealing surface height smooth, flat, consistent, processed into a very fit, tight seal pair. Gate through the valve stem on the mention, under pressure, the media formed on and off. It plays a shut-off role in the pipeline.

Advantages: small fluid resistance; fully open sealing surface from erosion; can be used in the media two-way flow, there is no directionality; durable; not only suitable for small valves, but also can make the valve bigger.

Disadvantages: height; opening and closing a long time; bulky; difficult to repair; if it is large-caliber gate valve, manual operation more laborious.

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