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36 Use of appropriate safety engineered swivel hoist rings in meter end flanges
Section 2: Mechanical installation Daniel 3410 Series Ultrasonic Gas Flow Meter Installation Manual
June 2014 3-9000-759 Rev D
6. After installation of the hoist rings, always check that the ring rotates and pivots freely
in all directions.
7. NEVER attempt to lift the meter using only one hoist ring.
8. Always use separate slings to each hoist ring. NEVER reeve one sling through both hoist
rings. The slings must be of equal length. Each sling must have a load rating that equals
or exceeds the hoist ring load rating. The angle between the two slings going to the
hoist rings must never exceed 90 degrees or the load rating of the hoist rings will be
exceeded.
Figure 2-10 90 Degree angle between slings