Shaft Alignment

Types of Shaft Alignment:


  •  Laser Alignment
  •  Dial Gauge Alignment
  •  Scale Alignment


How alignment is carried out
Shims are placed in the output shaft after checking axial float. The shaft is firmly fixed. Intermediate shaft is then assembled. Backlash is checked and kept at 0.3 mm. It is adjusted by adding or removing shims. Finally the same is done for the impact shaft as well.
 

Difference between Incandescent Bulb and Fluorescent Bulb


Incandescent bulb
Fluorescent bulb
Methodology
produces light from a heated filament
produce light by way of a gas discharge
Efficiency
Less
Relatively more
Heat
More
Less
Life
Less

Cost
Cheap
Expensive
Light-Heat
Warmer Light

Piping Prefabrication Steps


Procurement of material
Receiving Inspection/Material Inspection
Material Identification

Pipe Cutting Process

Straight Pipe

Groove Preparation

Drilling Process

Temporary Welding
Temporary Welding Inspection
Welding
check with Welding Process Record (Visual/Dimen)
Non-destructive inspection
PT/RT
Pressure Test for Piping

Surface Penetration
Inspection
Painting

Assembly of Piping/Equipment
Visual/Dimensional Examination
Air Tight Test
Inspection
Cleaning/Painting
Inspection
Packing

Identifying Stamp
TAG / Name Plate Shipping Inspection
Shipment


5 Leak Paths in a Mechanical Seal

5 Leak Paths in a Mechanical Seal
4 O-Rings + 1 Sealing between faces
       Stuffing Box and Gland
       Gland and Mating Ring
       Rotating Part(Seal Ring) & Sleeve
       Between Faces
       Shaft & Sleeve

Difference between T12 vs T8 vs T5 Tube Lights

T12 vs T8 vs T5

T12
T8
T5
Diameter
12/8"
8/8"
5/8"
Efficiency
old & inefficient
Higher efficiency
Efficient
Cost

roughly 20% more expensive than T12
2-3 times the cost of T8
Color Rendering Index (CRI)
62
85
85
Lumen's per Watt (LPW)
78
90
99
general life expectancy at 12 hrs. per day burn time
of around 36,000 hrs.
of around 36,000 hrs.
of around 36,000 hrs.