ASME B73.2:2003 pdf free download

ASME B73.2:2003 pdf free download

ASME B73.2:2003 pdf free download.Specification for Vertical In-Line Centrifugal Pumps for Chemical Process.
When the lriver pci.lcstal or adapter is used to clamp the rear cover to the casing, the material properties of the driver pedestal and adapter shall meet the requirement of para. 412.7.
4.12.7 Nonwetted Pressure Resisting Components. Nonwetted pressure resisting components shall be made of a material which is classified as ductile throughout the full range of operating temperatures. such as cast ductile iron or cast carbon steel.
4.12.8 Drainage. A threaded drain connection(s) (4 in. NFF preferred) shall be provided so that liquid will drain from the motor adapter and cover.
5.1 Application
5.1.1 Terminology. Pump application and application terminology shall be in accordance with ANSI/HI 1.1- 1.2.
5.1.2 flange Loading. Allowable flange loading imposed by the piping shall be in accordance with
5.1.3 Sound. The maximum sound pressure level produced by the pump and driver shall comply with the limit specified by the customer. Tests, if specified, shall be conducted in accordance with ANSI/HI 9.1-9.5. Driver noise data must be determined separately.
5.1.4 Vibration. The vibration level measured on the motor upper bearing housing on VC and VM pumps and on the pump’s upper bearing housing on VB pumps at the manufacturer’s test facility at rated condition point (speed ±5%, flow ±5’) shall not exceed twice the limits shown in Fig. of ANSI/HI 9.6.4.
5.1.5 Operating Region. Pumps shall be designed to operate continuously between 110% of the flow at the Best Efficiency Point and the minimum flows shown on Table 4, unless specifically noted otherwise by the manufacturer, and meet the requirements of paras. 4.5.4 (shaft deflection), 4.7.5, 4.7.6 (bearing life), and 5.1.4 (vibration) when pumping vater at ambient conditions.
CAIJflON: The values in Table 4 do no. consider minimum
thermal flow for a specific installation, therefore, the practical minimum operating flow may be higher than shown. Pumpage is heated as it goes through a pump and the minimum thermal flow is that where the temperature rises enough through the pump that recirculation of some of the flow reduces the available net positive suction head below that required by the pump, resulting in cavitation. Refer to AN SIIH 11.3, for detailed application Information.