IS 13368 : 1992 Method of test for double inlet centrifugal fans (industrial type)

1 Scope

1.1 This standard covers the method of test for air deliverytest for double inlet centrifugal fans.

1.2 Double inlet centrifugal fans can be tested at manufacturersworks by fitting a test duct at the outlet of the fan. Since it isinconvenient to provide long duct at the outlet for fans havingdischarge direction other than horizontal, testing method describedherein-after is valid for fans having horizontal discharge.Nevertheless, the method can be successfully applied for otherdischarge directions if the fan can be rotated for horizontaldischarge for testing purpose only.