louver screen, is manufactured by forming downward facing louver shaped openings into pipe up to 40 feet long. The process incorporates use of an internal mandrel which perforates the shutter against external blocks. louver screen is commonly produced from a variety of steel types including carbon, copper-bearing, high-strength low-alloy, and stainless. This type of screen is particularly suited for use in large diameter, deep, gravel envelope wells. In many parts of the world, wells of this type pump ground water from thick formations consisting of sands and gravels. Shutter screen is the product of choice for these wells because it is hydraulically efficient, strong and durable. The smooth, unobstructed interior of shutter screen allows the efficient use of highly effective development techniques such as swabbing and also facilitates employment of efficient maintenance and repair methods.
