ASME B73.1:2012 pdf download

ASME B73.1:2012 pdf download.Specification for Horizontal End Suction Centrifugal Pumps for Chemical Process
1 SCOPE
(a) This Standard is a design and specification stan- dard that covers metallic and solid polymer centrifugal pumps ofhorizontal, end suction single stage, centerline discharge design. This Standard includes dimensional interchangeability requirements and certain design fea- tures to facilitate installation and maintenance and to enhance reliability and safety of B73.1 pumps. It is the intent of this Standard that pumps of the same standard dimension designation from all sources of supply shall be interchangeable with respect to mounting dimen- sions, size, and location of suction and discharge noz- zles, input shafts, baseplates, and foundation bolt holes (see Tables 1-1 and 1-2). Maintenance and operation requirements are not included in this Standard. (b) This Standard has been revised to include solid polymer pumps formerly covered under ASME B73.5. The design and construction features for metallic pumps are covered in section 5. The design and construction features for solid polymer pumps are covered in section 6. This Standard must be read in its entirety for proper application.
3 ALTERNATIVE DESIGNS
Alternative designs will be considered, provided they meet the intent of this Standard and cover construction and performance that are equivalent to and otherwise in accordance with these specifications. All deviations from these specifications shall be described in detail.
4 NOMENCLATURE AND DEFINITIONS
4.1 Definitions of Terms The nomenclature and definitions of pump compo- nents shall be in accordance with ANSI/HI 1.1-1.2, except as noted below. 4.2 Additional Definitions auxiliary piping: includes all piping connected to the pump, seal chamber, packing box, or seal piping plan, excluding the main piping connected at the pump suc- tion and discharge flanges. Auxiliary piping includes piping, tubing, and all attached components, such as valves, instrumentation, coolers, and seal reservoirs. nonpressure-containing nonwetted parts: pump parts that do not contain or retain pressure and are not wetted by the pumped fluid. nonpressure-containing wetted parts: pump parts that do not contain or retain pressure but are wetted by the pumped fluid (e.g., wear ring). pressure-containing wetted parts: pump parts that contain pressure and are wetted by the pumped fluid (e.g., cas- ing, sealing cover). pressure-retaining nonwetted parts: pump parts that retain pressure but are not wetted by the pumped fluid (e.g., adapter, fasteners). sealing cover: refers to seal chamber, universal cover, or packing box. supplier: manufacturer or manufacturer’s representative that supplies the equipment.
5 DESIGN AND CONSTRUCTION FEATURES FOR METALLIC PUMPS
Section 6 contains the design and construction fea- tures that are unique for thermoplastic and thermoset polymer pumps. 5.1 Pressure and Temperature Limits 5.1.1 Pressure Limits. Pressure limitations shall be stated by the pump manufacturer. See para. 5.8.3 for auxiliary piping. 5.1.1.1 The design pressure of the casing, sealing cover, and gland shall be atleastas great as the pressure– temperature rating of ASME B16.5 Class 150 or ASME B16.42 Class 150 flanges for the material used. 5.1.1.2 The design pressure of jackets shall be at least 100 psig (689 kPa gage) at 340°F (171°C). Heating jackets may be required for jacket temperatures to 500°F (260°C) with a reduction in pressure correspond- ing to the reduction in yield strength of the jacket material. 5.1.1.3 Casing, sealing cover, gland, and jackets shall be designed to withstand a hydrostatic test at 1.5 times the maximum design pressure for the particu- lar component and material of construction used (see para. 7.2.1.1). 5.1.2 Temperature Limits. Temperature limitations shall be stated by the pump manufacturer. Pumps should be availablefor temperatures up to500°F (260°C). Jacketing and other modifications may be required to meetthe operating temperature. See para. 5.8.3 for auxil- iary piping.