BS EN ISO 10434 , گیت ولوهای استیل نفت و گاز

BS EN ISO 10434 : Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries

دانلود استاندارد BS EN ISO 10434 _آخرین ویرایش (استاندارد ایزو برای شیرالات دروازه ای، گیت ولو، فولادی برای استفاده در صنایع نفت و گاز و پتروشیمی و صنایع مربوطه)

فهرست استاندارد:

1 Scope
2 Normative references
3 Terms and definitions
4 Pressure/temperature ratings
5 Design
5.1 Body wall thickness
5.2 Bonnet wall thickness
5.3 Body dimensions
5.3.1 Flanged ends
5.3.2 Butt-welding ends
5.3.3 Body seats
5.4 Bonnet dimensions
5.5 Bonnet-to-body joint
5.6 Gate
5.7 Yoke
5.8 Stem and stem nut
5.9 Packing and packing box
5.10 Bolting
5.11 Operation
5.12 Auxiliary connections
6 Materials
6.1 Materials other than trim materials
6.2 Trim materials
6.3 Welding for fabrication and repair
7 Testing, inspection and examination
7.1 Pressure tests
7.1.1 General
7.1.2 Shell test
7.1.3 Closure tightness test
7.1.4 Optional backseat tightness test
7.1.5 Optional closure tightness test
7.1.6 Fugitive emission testing
7.2 Inspection
7.2.1 Extent of inspection
7.2.2 Site inspection
7.3 Examination
7.4 Supplementary examination
8 Marking
8.1 Legibility
8.2 Body marking
8.3 Ring joint marking
8.4 Identification plate marking
8.5 Special marking for unidirectional valves
9 Preparation for despatch
Annex A (informative) Information to be specified by the purchaser
Annex B (informative) Identification of valve terms
Annex C (informative) Valve material combinations