Industrial valves. Metallic butterfly valvesThis European Standard specifies requirements for butterfly valves having metallic bodies for use in flanged or butt welding piping systems and used for isolating, regulating or control applications. The PN and Class ranges are as follows: PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; Class 150; Class 300. The DN range is as follows: DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN

considering whether or not to adopt or apply UKLeaP in their business or organization

and are not included in this standard

conditioning of test pieces

BS EN 12094-1 provides you with requirements and test methods that can be followed while manufacturing electrical automatic control and delay devices

BS EN 10225 applies to steels for offshore structures

Management review

Technical principles

Overall length

BS 5839-1:2002+A2:2008 sets the standard for fire detection and alarm systems in non-residential buildings

This amendment is intended to establish a data interchange format for storing three-dimensional (3D) human face images

Reduced greenhouse gas emissions

Consideration of geometrical factors and physical aspects