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

vacuum gauges and combined vacuum and pressure gauges (compound gauges)

which are dealt with in separate European Standards

The test procedure specified in this European Standard is not applicable to particle sizes of less than 4 mm or greater than 80 mm

electrically-powered

The concept of storing such products in liquid form and in non-pressurized tanks therefore depends on the combination of latent heat of vaporization and thermal insulation

BS EN ISO 14002-1 Environmental management systems

equipment temperature exposure limits

Gas purities and mixing tolerances are specified as delivered by the supplier (manufacturer) and not at the point of use

installation

businesses can benefit from:

Grain oriented non-oriented magnetic steel sheet and strip

defines the specifications of three distinct low early strength blast furnace cement products and their constituents