Search results
Results from the WOW.Com Content Network
Safe Working Load (SWL) sometimes stated as the Normal Working Load (NWL) is the maximum safe force that a piece of lifting equipment, lifting device or accessory can exert to lift, suspend, or lower, a given mass without fear of breaking. It is usually marked on the equipment by the manufacturer.
Hot load is the working load of the support in the “Hot” condition i.e. when the pipe has traveled from the cold condition to the hot or working condition. Normally MSS-SP58 specifies max Load Variation ( popularly called LV) as 25%. [4] Salient features- Allows movement in vertical direction; Load on pipe varies with movement; Used where
Lifting equipment, also known as lifting gear, is a general term for any equipment that can be used to lift and lower loads. [1] Types of lifting equipment include heavy machinery such as the patient lift , overhead cranes , forklifts , jacks , building cradles, and passenger lifts, and can also include smaller accessories such as chains ...
It is the most powerful water lifting system in the world, not considering pumped-storage hydroelectricity stations. [1] There are 14 4-stage 80,000-horsepower centrifugal pumps that push the water up to the top of the mountain. Each motor-pump unit stands 65-feet high and weighs 420 tons.
A crane's rated load is its Safe Working Load (SWL) and the design load (DL) is, (p 90) [1] = The dynamic lift factor for offshore cranes in the range 10 kN < SWL ≤ 2500 kN is not less than =.(p 84) [1] Thus for a crane with a SWL of 2000 kN (~200 tonne) its design load is not less than, = = The minimum breaking load (MBL) for the combined capacity of reeves of a steel wire hoisting rope ...
The water ladder was built as an alternative to the paddle wheel to get around the problem that to lift water to a greater height, a bigger wheel is needed. [1] Despite the emergence of new pumps that operate on other principles, the water ladder remains an important tool as some of its other benefits are that they can be built and repaired easily at a very low cost.
(The compressor is on the surface and no mechanical parts are needed in the well). However airlift wells must be much deeper than the water table to allow for submergence. Air is generally pumped at least as deep under the water as the water is to be lifted. (If the water table is 50 ft below, the air should be pumped 100 feet deep).
The shadoof has a lifting range of 1 to 6 meters. A study of efficiency in various sites in Chad has shown that one man can lift 39 to 130 liters per minute over heights of 1.8 to 6.2 m, resulting in water-lifting power levels of 26.7 to 60.1 W. Its efficiency has been calculated at 60%.