UNE-EN 61518:2001 Mating dimensions between differential pressure (type) measuring instruments and flanged-on shut-off devices up to 413 bar (41,3 MPa) (Endorsed by AENOR in May of 2002.)
2002UNE-EN 61518:2001 Mating dimensions between differential pressure (type) measuring instruments and flanged-on shut-off devices up to 413 bar (41,3 MPa) (Endorsed by AENOR in May of 2002.)