This standard specifies the technical requirements, performance test, product inspection, marking, packaging, transportation and storage of clamp-type flexible joints. This standard applies to clamp-type flexible pipe joints for pipeline connections that transport gases, liquids, slurries and dusts.
GB/T 8259-2008 Referenced Document
GB/T 11352 Carbon steel castings for general engineering purpose
GB/T 1348 Spheroidal graphite iron castings*, 2019-12-31 Update
GB/T 16938 Fasteners.Gerneral requirements for bolts,screws,studs and nuts
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
GB/T 17604 Rubber--Recommendations for the workmanship of pipe joint rings--Description and classification of imperfections
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*, 2013-02-15 Update
GB/T 5721 General rules of identification,packaging,transportation and storage for rubber sealing products
GB/T 8260-2008 Types and dimensions of flexible joints of housing
GB/T 9440 Malleable iron castings*, 2010-12-23 Update
GB/T 9441 Metallographic test method for spheroidal graphite cast iron*, 2021-12-31 Update
GB/T 985.1 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding
HG/T 2181 Acid and alkali resistant rubber compounds for seals*, 2009-12-04 Update
HG/T 3091 Rubber seals.Joint rings for water supply,drainage and sewerage pipelines.Specification for materials
HG/T 3093 Rubber seals material for petroleum product supply pipes and fittings
HG/T 3097 Rubber seals Jonit rings for pipelines for hot-water supply up to 110℃. Specification for the materials
GB/T 8259-2008 history
2008GB/T 8259-2008 Specification for flexible joints of housing
1987GB/T 8259-1987 Specification for flexible coupling of housing