Headhunting for the well with your own hands...

Headhunting for the well with your own hands: device and installation rulesCompetent refining of the well is not feasible without the introduction of the necessary node - the head. The installation of the head for the well not only protects the structure through the ingress of foreign objects into it, but also greatly simplifies the operation of the well of the water supply system. Some people adhere to the idea that installing a head is unnecessary: ​​the wellhead can be wrapped with film or tape, and the structure can be covered with old capacity. This world view is incorrect, since peel or tape can not protect the well in case of rising groundwater, which can lead to system destruction and water pollution.
Main functions and varieties of headers
A cable supporting the submersible pump is attached to the headband. Through the head is the pump power cable and the pressure pipe itself. The wellhead for the well is a kind of cover that covers the casing portion of the casing
Setting the head for the well allows us to realize at least a few purposes:
reliable hermetic sealing of the wellhead through mass snow melting and flooding
the defense of the water supply system through the ingress of third-party objects also of surface groundwater
reducing the likelihood of the theft of hardware and equipment wells and wells
increasing the debit of shallow sand wells due to the generating voltage during the pump operation
the confrontation with the internal freezing of the well in the winter months
drinking water protection through precipitation, dirt, dust and debris
increasing the reliability of the pump hanging
simplifying the operation of the structure as a whole There are quite a few types of borehole ends, which differ in the material of production and the quality of the product
There are more necessary and popular among the broad masses of applicants are the boreholes for the well, made of plastic, steel or cast iron. For the arrangement of shallow wells, the plastic effect of the product is often used.
Refinement and installation of the well head
The structure of the head for the well is equipped with: a protective cover, plastic or iron flange, rubber ring, fasteners and carabiners. For the outer side of the iron covers, two eyebolts are welded, and for the inner one there is only one.
The main advantages of the installation design - the installation of the well head does not require welding. Installation of the product is done through tightening with bolts. They compress between themselves pressing the flange and the cover, as well as an interlayer made of a sealing rubber ring.
The comfort of the installation is also in the ability to immerse the pump from the eye bolts placed on the product cover, using lifting devices (crane, winch). At the base of the eyebolt from the inside of the lid, a cable is fixed, who is attached to a pump using a carbine, which simplifies the operation of the water supply system
The beginning of the headstock should be perpendicular to the axis to respond to the casing. The cutting edge should be executed smooth, cleaned through a barb. The external appearance of the pipe is cleaned, primed and covered with a layer of anticorrosion paint.
After that, the pump can be added to the plastic pipe, there to attach the cable of the required length and build up the cable. The whole structure is tightened by a yoke. The free end of the cable should be attached through the lower eyebolt of the cover to the carabiner. In advance, through the lid, pass the cable and the plastic pressure pipe. A flange and a rubber ring are worn flat on the outside for the casing.
By lowering the submersible pump into the well, it is permissible to install the seal cover. For this, the flange and the rubber ring should be slightly raised before the level of the head cover. The flange and the end are pulled together by bolts, while the rubber ring, located between them, is compressed. To tighten and prevent the sagging of the pressure polyethylene pipe will help the application for the sake of fixing the collet clamp. With the help of cable glands it is possible to fix saggy cables.
Like to design all-out without the help of others?
For the production of the flange of the head, 10 mm sheet metal will be needed. Starting from the outer dimension of the casing, it is necessary to cut out the flange, whose home diameter has little to conquer this value. The consent to the size of the flange should be cut and the plug, into which the inlet fittings for the sake of cables and pressurized water supply will be welded. The usual structure of the product also makes it possible to make a headpiece for the sake of a well with your own hands quite vividly
Two eyebolts must be welded to the outer surface of the lid, which will be necessary for the purpose of lowering the pump and lifting the lid to carry out preventive measures. To the inner surface of the lid, weld the eyebolt, which is necessary for the attachment of the pump cable. The joint flange is tightened with bolts. Having placed a rubber ring near the flange, it is permissible to provide a benign seal for the entire structure.