HG/T 2145.4-2015 (English Version) PDF

Scope: This standard specifies the type, basic parameters and dimensions of quick-opening hand holes with sight glasses for glass-lined equipment, technical requirements, factory documents, packaging, transportation and storage. This standard is applicable to quick-opening hand holes with sight glasses for glass-lined equipment whose nominal pressure is not greater than PN10 and whose design temperature is higher than -20°C to 200°C.

HG/T 2145.4-2015 Referenced Document

GB 25025 Specification of glass-lined equipment for industry
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 23259 Sight glass for pressure vessels
GB/T 6170 Hexagon nuts,style 1*， 2015-12-31 Update
GB/T 70.1 Hexagon socket head cap screws
GB/T 882 Clevis pin with head
GB/T 898 Double end studs bm=1.25d
GB/T 91 Split pins
HG/T 2050 Glass lined equipment gasket*， 2019-12-24 Update
HG/T 2054 Glass lined equipment clips*， 2018-10-22 Update
HG/T 20606 Non-metallic flat gaskets for use with steel pipe flanges(PN designated)
HG/T 20614 Specication for selection of steel pipe flanges,gaskets and bolting(PN designated)
HG/T 20660 Classification criteria for toxicity hazards and explosion hazards of chemical media in pressure vessels*， 2017-10-01 Update

2015 HG/T 2145.4-2015 Quick-opening handhole with glass sight for glass-lined vessel
2009 HG/T 2145.4-2009 Quick-opening handhole with glass sight for glass lined steel vessel
1970 HG/T 2145.4-1991 Glass-lined hand hole with mirror quick opening hand hole