Blow Out Arrest Hose Grip or BOA™ is a Wire Mesh Whip Sock manufactured by Lewis Mfg. BOA hose grip is used on high pressure hose to safely minimizes the dangerous high pressure whipping of a hose on blow out. Also, as a Bundle Keeper, BOA provides hose abrasion and wear protection near the hose coupler’s fitting, where needed the most. A hose grip’s construction is similar to a DLE grip but has much longer leads (15″) for easier and flexible installation. BOA is available in galvanized steel or aramid fibers.
Rope compresses (decreases diameter) as it is pulled, so be aware that if the rope compresses to a diameter smaller than the grip minimum diameter range, the rope will slip.
Inspect swivel carefully before and after each use.
- Check for cracks around the throat on both ends of the swivel, and on the body of the swivel. If cracks in the body of the swivel are apparent, or if the pins are bent, discard swivel immediately.
- Make sure the swivel rotates freely and smoothly without any binding. The swivel stem should not be loose, with no up and down or lateral movement. Swivel should be smooth turning and snugly fitted together with no sloppiness in the operation. Do not use a damaged swivel.
- Before making a pull, make sure swivel pins are tightened and mate up properly. If pins have stripped threads, replace immediately. Pins are available with standard slot grooves or with Allen wrench fittings.
- Do not exceed the work load stenciled on every Lewis swivel. If you anticipate being within 10% of the work load during any pull, a larger swivel should be considered, especially if any shock loading might occur during the pull. If the work load is in question, please consult with the factory in Oklahoma City by calling Toll-Free 888-398-4719.
- Do not pull any swivel around a bull wheel that has a smaller diameter than the length of the swivel. Doing so exposes the swivel to a side load, and can permanently damage your swivel. If you know a Ball Bearing swivel has been exposed to an unqualified side load, the swivel should be removed from service and replaced.
- Lubricate all greasable swivels before and after each use. Make sure there is no debris in the swivel gap, that is, the area where rotation occurs between the swivel body and eye. The only substance that should be in the swivel gap is the grease that has been used to purge the swivel of contaminants. The specified grease for our swivels is Mystic JT-6 Multi Purpose Water Resistant Grease, but any high grade waterproof grease will suffice.
- Do not expose the swivel to long durations of harsh and corrosive environments. After each use remove the swivel and the grip, clean & store them in a dry and protected location so that they are not exposed to harsh environments such as offshore drilling platforms or other salty, corrosive environments.
Lewis Manufacturing’s Non-Magnetic Suspension Grips are constructed Tin Coated Bronze which is Non-Magnetic. Tin coated bronze is ideal for standard support applications under regular tension. Tin coated bronze is non-magnetic and has excellent corrosive resistance properties. These grips should be used in an environment that requires non-magnetic materials or corrosion resistance.
Aramid fiber is a generic name for a class of heat-resistant and strong synthetic fibers. They are used in aerospace and military applications, for ballistic rated body armor fabric and ballistic composites, for example. They are fibers in which the chain molecules are highly oriented along the fiber axis, so the strength of the chemical bond can be exploited. For example, Kevlar® made by DuPont is a registered trade mark brand of aramid fiber.
We manufacture Ouchless Lewis Grips™ made of aramid fiber strands that can be used in essentially all grip configurations specifically, the grips can also be used when a metallic grip is unsuitable, such as when pulling into an energized environment. However when used around coastal areas or in corrosive environments the Stainless Steel option is still superior.
YES, you will need the outside diameter in inches of each cable in the bundle to figure the outside diameter of the complete bundle, and thus select the proper grip from the application chart in our catalog.
Yes, we believe cable should always be suspended in the conduit by some form of suspension grip.
The primary purpose of a suspension grip is to relieve pressure on the pot-head connection. This can be accomplished by using either our standard U-Bail type grip or the more popular Conduit Riser grip. The U-bail series is attached to the pole by using a J-Hook which screws into the pole. The conduit riser grip allows the cable to be suspended by placing the weight on the pole mounted conduit system. The ring sits atop the edge of the conduit, and is fitted to specific sizes of conduit. The mesh size is then figured to ensure a proper fit. These “ring” grips also provide a barrier to varmints and prevent them from becoming trapped within the conduit system, possibly causing a fault, fire, or electrocution.
The difference between the overhead and underground grips
In general, overhead grips have higher working loads to accommodate the higher tensions primary overhead cable pulls require. Many grips are interchangeable and can be used for both purposes; however most customers prefer to keep their overhead and underground grips separate. The underground grips may become caked with mud and other contaminants which are unfavorable to overhead operations as well as inside conduit pulls.
Heat-Sealed is a process of joining the rubberized canvas at the seams using heating process instead of sewing. The heat-sealed method provides a much better and stronger seam.
No It Can Not!
A grip, once frayed or damaged in any way should be removed from service immediately.