Pipes - some facts You should know

to us that such work take a long time and cause discomfort, but hardly anyone takes into account how much damage and problems may arise from malfunction or failure of the hydraulic system. Periodic maintenance or minor repairs doe

Pipes - some facts You should know boiler repairs Chelsea

Is hydraulic works last long?

Many people avoid replacement of hydraulic and maintenance and minor repairs, because they do not have time for it, to be organized. Often it seems to us that such work take a long time and cause discomfort, but hardly anyone takes into account how much damage and problems may arise from malfunction or failure of the hydraulic system. Periodic maintenance or minor repairs does not take much time, and if you know exactly where you are located pipes and other parts of the hydraulics, everything runs more smoothly. So let's spend these few hours and invite home to professional, because in this way we will be able to avoid additional high costs and other problems.


About plastic pipes

Plastic pipe is a tubular section, or hollow cylinder, made of plastic. It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow ? liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members.

There are three basic types of plastic pipes:

Solid wall pipe
Extruded pipes consisting of one layer of a homogeneous matrix of thermoplastic material which is ready for use in a pipeline

Structured wall pipe
Structured-wall pipes and fittings are products which have an optimized design with regard to material usage to achieve the physical, mechanical and performance requirements. Structured Wall Pipes are tailor made solutions of piping systems, for a variety of applications and in most cases developed in cooperation with users

Barrier pipe
Pipe incorporating a flexible metallic layer as the middle of three bonded layers. Barrier pipe is used, for example, to provide additional protection for the contents passing through the pipe (particularly drinking water) from aggressive chemicals or other pollution when laid in ground contaminated by previous use.

Most plastic pipe systems are made from thermoplastic materials. The production method involves melting the material, shaping and then cooling. Pipes are normally produced by extrusion.

Źródło: https://en.wikipedia.org/wiki/Plastic_pipe


Wikipedia about Gaskets

Gaskets are mechanical seals, usually formed like a ring and used for sealing of flange joints. In general, gaskets should not be reused. Various types of gaskets are available depending upon their construction, materials, and features. The following are the type of gaskets commonly used:

Non-Metallic Gaskets (ASME B 16.21)
Spiral-Wound Gaskets (ASME B 16.20)
Ring Joint Gaskets (ASME B 16.20)

Non-Metallic Gaskets are used with flat face or raised face flanges. Spiral-Wound Gaskets are used with raised face flanges. They are available with an inner ring and outer ring, which is also known as the cantering ring. Ring Joint Gaskets are used with Ring Type Joint (RTJ) flanges. They are available in octagonal or oval cross sections.

A very high surface stress is developed between an RTJ gasket and the flange groove when RTJ is bolted up in a flange. This leads to plastic deformation of the gasket. Thus, the hardness of the gasket is kept less than the hardness of the groove to achieve coining i.e. bringing two metal surfaces of different hardness so tightly together that the softer surface deforms to match harder surface exactly in shape and finish. Hence RTJ gaskets are not recommended for reuse.

Źródło: https://en.wikipedia.org/wiki/Piping_and_plumbing_fitting