Page 186 - Bürkert
P. 186

Ordering Chart
                                        Port                 Actuatror   Pilot pressure [bar]
                            Orifice             Kv value wa-                             Max. operating
            Control function          connection               size                                     Item no.
                             [mm]                ter [m /h]              min.    max.    pressure [bar]
                                                      3
                                        [inch]               Ø [mm]
            A 2/2-way nor-  EPDM seal
            mally closed, NC  15        G 1/4       4          50         5       10         8.5        445 417
                                                                                                                     2031 Compact
                             15         G 3/8       4          50         5       10         8.5        445 418
                             15         G 1/2       4          50         5       10         8.5        445 419

                             20         G 3/4       7          63        5.5      10         10         558 712

                         FKM seal
                             15         G 1/4       4          50         5       10         8.5        445 420

                             15         G 3/8       4          50         5       10         8.5        445 421
                             15         G 1/2       4          50         5       10         8.5        445 422

                             20         G 3/4       7          63        5.5      10         10         558 714

                         EPDM coated with PTFE seal
                             15         G 1/4  39   4          50         7       10         8.5 52       –

                             15         G 3/8       4          50         7       10         8.5        444 148
                             15         G 1/2       4          50         7       10         8.5          –
                                                                                                             148 ±0,2
                             20         G 3/4       7      122  63       8.5      10         10         558 713



           Envelope Dimensions [mm]

                                                 27                                               63,5
                DN15                             50                 DN20


                   39                           Ø 63                    52                        Ø 80


                                        G 1/4 or G 3/8 or G 1/2                            G 3/4 (x2)

                                 122    G1/4 oder G3/8 oder G1/2                      148 ±0,2








                       27                        56                        63,5                    80
                       50
                                               Pilot air ports
                      ¯  63                    Actuator 50 (corr. to Ø 80 mm) = 1/8”  Ø 80
                                               Actuator 63 (corr. to Ø 63 mm) = 1/4”


              G1/4 or G3/8 or G1/2                                  G 3/4 (x2)










                       56                                                   80


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