Product Introduction

FGE42-12 ductile cast iron lost wax investment

Ductile iron manufacturers how to choose

Due to the particularity of water pipes, in the selection of ductile iron pipes, we must put quality first, comprehensive consideration of service life, price and other factors.

Secondly, we should pay attention to the scientific and technological content of the product. The use of ductile iron pipe is more special, taking into account the characteristics of terrain, soil corrosion, pipe shedding, long-distance transportation, etc., so do not underestimate a small ductile iron pipe. Is a multidisciplinary research results, ductile iron pipe manufacturers should have deep R & D strength.

Ductile iron pipe manufacturers install a few points

① Clean nozzle: remove and scrub all debris in the socket.

② Clean the rubber ring and the rubber ring: clean the rubber ring on the rubber ring, bend the rubber ring into a "plum" or "8" shape into the socket slot, and then press along the entire rubber ring by hand, or beat with a rubber mallet to ensure that all parts of the rubber ring are not warped, not twisted, and evenly stuck in the slot.

③ Brush lubricant on the outer surface of the socket and skirt plate: brush lubricant evenly on the inner surface of the skirt plate installed in the socket, brush lubricant on the outer surface of the socket, and brush all socket parts except the socket line evenly.

④ Pipe laying: according to the pipe laying requirements, the pipe will be lowered to the bottom of the tank, generally using manual or mechanical pipe laying.

⑤ Mechanical equipment installation: Install the prepared mechanical equipment in place, and pay attention not to pollute the cleaned pipeline again during installation.

⑥ Push the pipe into the socket: During installation, the socket is inserted into the socket more labor-saving and smooth. First, put the socket in the socket and press the socket on the rubber ring in the socket, connect the wire rope and the chain, and tighten the chain; At the same time, one can shake the pipe from side to side at the socket end of the pipe until all the sockets are inserted into the socket. There should be a gap of about 2mm between the socket and the socket, and the distance between the outer edge of the socket and the apron should be the same.

⑦ Installation of pipe fittings: due to the light weight of pipe fittings, the use of a single wire rope during installation, it is easy to offset the direction of pipe fittings, resulting in the rubber ring being squeezed and cannot be installed in place. Therefore, the double chain parallel force method can be used to install the pipe fittings in parallel, without squeezing the rubber ring. It can also be lengthened and installed with a single steel wire.

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