Tubes and Pipe Works

Question 1

composed of pipes,
tubings, hose assemblies, manifolds and fittings so arranged
that the fluid is carried with minimum losses from the reservoir
through controls and working components and is then
returned

Answer 1

fluid distribution system

Question 2

All materials used to convey fluid power are commonly
classified as

Answer 2

conductors

Question 3

generally steel regardless of conductor
material and they may be coated with cadmium or some other
corrosion-resistant material.

Answer 3

conductors

Question 4

The following points must be considered both
while designing the system and selecting a conductor

Answer 4

• The working strength of conductor
• The mechanical strength of the conductor
• The interior surface of the conductor
• The pipe size
• Conductors should be positioned so that they
  cannot be damaged
• Conductors should be supported
• Conductor runs may frequently

Question 5

standard followed in hydraulic pipes

Answer 5

DIN 2391

Question 6

outer diameter followed in hydraulic pipes

Answer 6

0.5 - 12 inches

Question 7

thickness followed in hydraulic pipes

Answer 7

0.039 - 0.472 inches

Question 8

steel grade followed in hydraulic pipes

Answer 8

16Mn

Question 9

Manufactured followed in hydraulic pipe

Answer 9

cold drawn

Question 10

surface treatment followed in hydraulic pipe

Answer 10

copper coated

Question 11

The most commonly used screw thread
forms for hydraulic pipe fittings are as follows:

Answer 11

1.British standard pipe threads (BSP).
2.American National pipe threads (NPT).
3. Unified pipe threads (UNF).
4. Metric pipe threads

Question 12

commonly used conductors

Answer 12

steel tubing
connection joints
plastic
flexible hose
Quick Disconnect Couplings