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Plumbing snakes - some types

Drum augers A drum auger is a motorized auger with modular blades designed for various gauges of pipe.

A drum auger is powerful enough to cut through tree roots.

Used unskillfully, they can also damage plastic pipework and even copper tubing. Roto-Rooter Main article: Roto-Rooter The Roto-Rooter is an electric auger invented in 1933 by Samuel Blanc, an American. His wife called the invention a Roto-Rooter, because the cable and blades rotated as they cut through tree roots inside sewer pipe. Competing companies made imitations after the Blanc's patent expired in 1953, but the machine is manufactured by and for a United States company called the Roto-Rooter Plumbing & Drain Service.Źródło: https://en.wikipedia.org/wiki/Plumber%27s_snakeŹródło: https://en.wikipedia.org/wiki/Plumber%27s_snake

Gaskets - what are they?

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

Repair plumbing services performed in the flats

To common plumbing services should be installation of new sanitary facilities and repair of these devices and mending other hydraulic faults.
Frequently performed hydraulic services for apartments are repairing a leaky faucet or washing machines, which ceased to spin the laundry.
Similar repairs are done at home.
But in such buildings often you have to also carry out work related to repair leaks resulting in the installation of plumbing.

This is because the state of the responsibility of owners of housing blocks and homes can have installations mounted a dozen years earlier.

Similar situation may occur also in the case of hospitals..

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