Emerson 3412 User Manual

Page of 144
Daniel 3410 Series Ultrasonic Gas Flow Meter Installation Manual
Section 2: Mechanical installation
3-9000-759 Rev D
June 2014
Use of appropriate safety engineered swivel hoist rings in meter end flanges
 
35
Figure 2-9  Safety approved hoist ring and non-compliant eye bolt  
Safety precautions using safety engineered swivel hoist rings
Read and follow the Safety Precautions listed below:
1.
Meters must only be lifted by personnel properly trained in the safe practices of rigging 
and lifting.
2.
Remove the plug bolts installed in the tapped holes on the top of the flanges. Do not 
discard the bolts as they must be reinstalled once the lifting operation is complete to 
prevent corrosion of the tapped holes.
3.
Make sure the tapped holes on the meter are clean and free of debris before installing 
the hoist rings.
4.
Use only the safety engineered swivel hoist rings that are rated for lifting the meter. Do 
not use any other type of hoist rings with the same screw size or heavy duty hoist rings. 
The meter tapping and counter bore size are suitable only for the hoist rings specified 
by Daniel.
5.
When installing a hoist ring, make sure the base surface of the hoist ring fully contacts 
the machined flat surface of the tapped hole. If the two surfaces do not come in contact 
then the hoist ring will not hold its full rated load. Torque the hoist ring attachment 
bolts to the limit indicated on the hoist rings.
Eye bolt
Safety engineered swivel hoist ring