BS EN 593 , استاندارد شیرآلات پروانه ای پایپینگ

BS EN 593 : Industrial valves – Metallic butterfly valves for general purposes

دانلود استاندارد BS EN 593 : آخرین ویرایش استاندارد مشخصات فنی عمومی باترفلای ولو های پایپینگ و لوله کشی صنعتی

فهرست استاندارد BS EN 593 :

1 Scope
2 Normative references
3 Terms and definitions
4 Design requirements
4.1 General
4.2 Shell
4.3 Body
4.4 Obturator (disc)
4.5 Seat seal
4.6 Driving shaft
4.7 Shaft seal
4.8 Optional design features
4.9 Materials
4.10 Pressure/temperature ratings
4.11 Dimensions and tolerances
4.12 Operation
4.13 Permanent joining
4.14 Functional characteristics and performances
5 Final assessment
6 Designation
7 Marking and preparation for storage and transportation

Annex A (informative) Information to be supplied by the customer
Annex B (informative) Trim material list
Annex C (informative) Environmental corrosion protection
Annex D (informative) Correspondence between DN and NPS
Annex E (informative) Example for valve shaft calculation
E.1 General
E.2 Calculation
E.2.1 Shear stress
E.2.2 Combined shear stress (at valve bearing) (section 2-2)
E.2.3 Combined tensile stress at seating due to torsion and bending (section 2-2)
E.2.4 Shear stress at reduced area (sections 1-1, 3-3, 4-4)
E.3 Examples of influence of flow velocity/hydrodynamic torques for shaft sizing

Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2014/68/EU (Pressure Equipment Directive) aimed to be covered