JB/T 7255-2007 (English Version) PDF

Scope: This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, use guarantee, marking, packaging, transportation and storage of water ring vacuum pumps and water ring compressors (hereinafter referred to as pumps). This standard is applicable to water ring vacuum pumps and water ring compressors that pump or transport gases that do not contain solid particles, are insoluble in water, and have a temperature of generally -10°C to 40°C. For liquid ring pumps that use non-aqueous liquids as working fluids, please refer to this guide.

JB/T 7255-2007 Referenced Document

GB/T 11352 Carbon steel castings for general engineering purpose*， 2008-03-05 Update
GB/T 13306 Plates*， 2011-05-12 Update
GB/T 13384 General specifications for packing of mechanical and electrical product*， 2008-07-18 Update
GB/T 1348 Spheroidal graphite iron castings*， 2019-12-31 Update
GB/T 13929 Methods of testing for water-ring vacuum pumps and compressors*， 2010-09-26 Update
GB/T 2100 Corrosion-resistanst steel castings for general applications*， 2017-11-01 Update
GB/T 4662 Rated static load of rolling bearing*， 2012-11-05 Update
GB/T 4879 Rustproof packaging*， 2016-02-24 Update
GB/T 6391 Rolling bearings.Dynamic load ratings and rating life*， 2011-01-14 Update
GB/T 9439 Gray cast iron parts*， 2023-09-07 Update
JB/T 4127.1 Mechanical seal.Part 1:Specification*， 2013-04-25 Update
JB/T 4127.3 Mechanical seal.Part 3: Product acceptance specification*， 2011-05-18 Update
JB/T 4297 Pump product painting technical conditions*， 2021-12-02 Update
JB/T 8097 Methods of measuring and evaluating vibration of pumps
JB/T 8098 Methods of measuring and evaluating noise of pumps