Concealed cast iron gate

There are two types of cast iron gates: square and circular. Cast iron gates are generally composed of two parts: door leaves and door frames. The material of the door body and door frame is cast iron, which is generally cast and processed as a whole.

Characteristics of cast iron gate: Cast iron gate is a small flat gate widely used in water intake and transportation, municipal construction, water supply and drainage, farmland irrigation and other projects. It is usually set at the inlet of channels and culverts, used as a working gate to regulate flow, control water level, or as a maintenance gate to close the orifice and block water.

There are two types of cast iron gates: square and circular. Cast iron gates are generally composed of two parts: door leaves and door frames. The material of the door body and door frame is cast iron, which is generally cast and processed as a whole.

The door body generally adopts a structure of panels and reinforced ribs, and the panels can be flat or arched. The door body is generally cast and machined as a whole, but larger sizes can be composed of blocks. The door body generally adopts integral metal water stop, which also serves as a supporting slider. The metal water stop is fastened to the door body with countersunk screws made of the same material, and the screw head is precision machined together with the water stop working surface. Some larger sizes can also use "P" - shaped rubber water stop.

The door frame is a connecting component between the cast iron gate and the foundation, equivalent to the buried height of a flat steel gate. The door frame consists of two parts: the lower door frame and the upper guide rail. The lower door frame is generally cast as a whole, and the guide rail can be connected to the door frame with bolts (screws) or cast as a whole with the lower door frame. When the door body is opened to the highest position, the top of the guide rail should be higher than the horizontal centerline of the door body.

Features:

Cast iron gates are generally equipped with adjustable wedging devices, and wedging pairs (such as wedges and wedges, wedges and eccentric pins, etc.) are respectively installed on the door body and door frame. Adjusting the wedge tightening device can make the gate body tightly adhere to the door frame when it is closed, achieving the water stop requirement.

Cast iron gates are usually equipped with manual or electric screw type hoists for operating the gate's opening and closing.

Cast iron gates have the following characteristics:

Simple layout, compact structure, and space saving; The operation and maintenance are simple, reducing operating costs, but the cost of cast iron gates is slightly higher than that of steel gates.

Strong corrosion resistance. The material of the door body and frame is cast iron, and the water stop surface is embedded with corrosion-resistant materials such as copper alloy or stainless steel, which has strong anti-corrosion ability and is particularly suitable for sewage or seawater environments. In places with special requirements, materials with stronger corrosion resistance such as nickel chromium alloy cast iron can also be used.

The water stop pair of cast iron gate is processed as a whole, with good water stop effect and long service life of metal water stop.