Pipe-work And Seals

Question 1

What 3 things does the type of pipework used depend on?

Answer 1

The type of service being supplied.
The operating temperature.
The other typea of materials in the system.

Question 2

What 5 materials can be used and for what?

Answer 2

Phosphor bronze- high pressure salt water.
Copper- domestic fresh water.
Copper nickel- lub oil systems.
Brass- castings.
Plastic- sewage and pre wet/sprinklers.

Question 3

What 3 things does the type of seal used depend on?

Answer 3

The system working pressure.
The fluid being used.
The temperatures.

Question 4

What 6 things can gaskets be made from?

Answer 4

NAF- non asbestos fibre.
Paper.
Leather.
Cork.
Copper.
Rubber.

Question 5

Name 3 type of seals and their uses.

Answer 5

Mechanical seal- for rotating components.
Keelering coupling- for high pressure connections and smaller diameter pipes.
Gland packing- for glands that liquid could escape through.