(678) 691-4935. Sizing Vacuum Pumps. Pumping speed, or capacity, is measured in terms of gas volume drawn in a length of. time. Cubic Feet per Minute (cfm) or Cubic Meters per Hour (m3/h) are the two standard. measurements. The number corresponds to the volume of the suction chamber.
These 10 facts about space will blow your mind. Olefin, also known as polypropylene or polyethylene, is a long-chain polymer synthetic fiber. It is created when ethylene and/or propylene gases are polymerized under very specific conditions. The fiber was first manufactured in the late 1950s, and has myriad applications in manufacturing, household products, and clothing.
There are two types of polymers that can be used in olefin fibers. The first, polyethylene, is a simple linear structure with repeating units. These fibers are used mainly for ropes, twines and utility fabrics. The second type, polypropylene, is a three-dimensional structure with a backbone of carbon atoms.t is used in wallpaper, carpeting, ropes, and vehicle interiors. Olefin's advantages are its strength, colourfastness and comfort, its resistance to staining, mildew, abrasion, sunlight and its good bulk and cover.