Used Singly & Two Single Legs Used Together  
Simple Choke
SWL = 1/2
SWL
Double Wrapped
Choke Hitch
SWL = SWL
of Sling
Double and
Choked
SWL=SWL+
SWL
of Sling
Choke Hitch
SWL=1.4xSWL
of Sling
Basket Hitch
SWL=2.1xSWL
of Sling
Double Wrapped
Basket Hitch
SWL=2.1xSWL
of Sling
Double Wrapped
Choke Hitch
SWL=1.4xSWL
of Sling
 
Casing Slings
Always:
Prepare your landing site to enable the bundles to be landed without crushing the slings

 
Uniform Load Method Calculation Used Throughout. The slings should be double wrapped with a choke hitch taking care not to cross over the wires on the underside of the pipe or tube bundle. The choke hitch should be pulled tight to secure the bundle and bulldog grip fitted. A tie wrap should than be fitted prevent the revved eye slipping over the bulldog should the bundle loosen in transit. In the interest of safe lifting we suggest you reduce the SWL by atleast 20% on choker hitch.
 
Recommended Operating Practice
Whenever any sling is used, the following practice must be observed.
1. Destroy retired slings. 2. Never expose slings to temperatures in excess of the manufacturer's recommendations 3. Use a sling that is long enough to provide the minimum practical vertical angle. 4. never shorten a sling with knots, bolts or other methods. 5. Never twist or kink the legs of a sling. 6. Never load a sling in excess of its rated capacity. 7. Center the load in the base (bowl) of the hook to prevent point loading. 8. When using a basket hitch, balance the load to prevent slippage. 9. Always protect slings from sharp edges. 10. Securely hitch each sling to its load. 11. Avoid shock loading 12. Never pull a sling from under a load while that load is resting on the sling 13. Never use homemade fitting and attachments. 14. Never make a sling from used wire rope. 15. Never use any sling that is of questionable strength and condition.