With professional technology and rich experience, Shanghai Ruiyuan standardized production according to industry standards.
Decision of the State Council on Amending the regulations on safety supervision of special equipment
Tsg21-2016 Supervision Regulation on safety technology of stationary pressure vessels
Steel pressure vessels (GB 150.1 ～ 150.4-2011)
Gb713-2014 steel plates for boilers and pressure vessels
JB / T4730-2005 nondestructive testing of pressure equipment
Hg20584-2011 technical requirements for manufacturing steel chemical vessels
Jb4708-2011 welding procedure qualification for steel pressure vessels
JB / t4709-2011 welding procedure for steel pressure vessels
JB / t4711-2003 coating and transportation packaging of pressure vessels
Steel flange (Hg / t20615-2009)
Standard of filter element:
Iso2941 pressure crack test of filter element
Iso2942 structural integrity test of filter element
Iso2943 test for compatibility between filter material and fluid
Iso3723 end load test of filter element
Iso3724 flow fatigue test for filter element
Iso3968 "filter element differential pressure characteristic test / flow differential pressure characteristic test"
ISO 4022 air permeability of filter element
ISO 16889 "filterability of filter elements / filtration accuracy"
ISO / DP 8573 residual liquid content
Iso-4572 dust capacity
ISO / DP 8573-2001 residual liquid content
GB / t5249 "filtration accuracy, bubble point pressure"