Is anyone aware of any quantitative studies showing the effects of regular tube cleaning on the tube side fouling factor? I would like to increase the plugging limit on a heat exchanger from 5% to 10% by reducing the design fouling factor. The heat exhanger uses treated river water on the tube...
I am aware that B16.5 applies to flanges and flanged fittings but some of the earlier editions and addenda between 1968 and 1973 added requirements for valve closure testing and stem seal leakage. Later these requirements were moved to B16.34 and other standards and codes have added similar...
I am looking for someone who has the 1968 edition of B16.5 to let me know what requirements were included, if any, for valve closure or valve seat leakage hydrostatic testing. Would really appreciate a FAX of the applicable page(s). FAX is 205-992-5002. Thanks in advance.
