Page 9 - ZSi-Foster Beta Hydraulic Clamps
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Beta Clamp Technical Data






            BETA CLAMPS TORQUE AND MATERIAL PROPERTIES                             RECOMMENDED PIPE
                                                                                   CLAMP SPACING
                                      TIGHTENING TORQUE                              RECOMMENDED PIPE CLAMP SPACING
                                          Aluminum     Polypropylene    Polyamide
                                 Bolt
               Clamp     Group             Cushion       Cushion       Cushion
                                 Size                                                             Clamp Spacing
                                        Lbf     Nm     Lbf    Nm     Lbf    Nm
             BETA STANDARD  S1 - S7  1 ⁄4"-20  7  10   6      8      6       8
                         H3, H4  3 ⁄ 8"-16  22  30     9      12     15     20
                          H5    3 ⁄ 8"-16  26   35     11     15     18     25
              BETA HEAVY
                          H6    1 ⁄ 2"-13   41  55     29     30     30     40
                          H7    5 ⁄ 8"-11  89   120    33     45     41     55
                          T1    1 ⁄4"-20     -         4      6      4       6            Pipe O.D.         Spacing
              BETA TWIN
                         T2 - T5  5 ⁄ 16"-18  -        9      12     9      12          in       mm      ft - in.  m
             The outlined particulars are approximate values and are only valid as references, which are not binding, also with regard to possible   0.24" – 0.5"  6 – 12.7  3' - 3"  1.0
             protection of third parties, and they do not exempt you from your own examination of suitability of the products delivered by us.   0.5" – 0.87"  12.7 – 22  3' - 11"  1.2
             Therefore, these values can only be used in a limited sense for construction purposes. The application of the products is carried out
             outside our control possibilities and, therefore, is exclusively subject to your own area of responsibility. If, however, liability should   0.87" – 1.26"  22 – 32  4' - 11"  1.5
             be possible, it would be limited for all damages to the value of the goods supplied by us and in use by you. It goes without saying,   1.26" – 1.5"  32 – 38  6' - 7"  2.0
             that we guarantee the perfect quality of our products according to our general sales and delivery conditions.
                                                                                     1.5" – 2.24"  38 – 57  8' - 10"  2.7
                                BETA CLAMP MATERIAL PROPERTIES                       2.24" – 2.95"  57 – 75  9' - 10"  3.0
                             Material Properties                Polypropylene (PP)    2.95" – 3"  75 – 76.1  11' - 6"  3.5
                      Density                 –                   0.906 g/cm3         3" – 3.5"  76.1 – 88.9  12' - 2"  3.7
                   Tensile strengt h        DIN 53454            25-35 N/mm2          3.5" – 4"  88.9 – 102  13' - 1"  4.0
                   Flexure stress limit     DIN 53452             36N N/mm2           4" – 4.5"  102 – 114  14' - 9"  4.5
                  Compressive strength      DIN 53454             90 N/mm2           4.5" – 6.6"  114 – 168  16' - 5"  5.0
                    Impact strength         DIN 53453              No break          6.6" – 8.6"  168 – 219  19' - 8"  6.0
                             Thermo Properties                  Polypropylene (PP)   8.6" – 12.8"  219 – 324  21' - 12"  6.7
                             Max. temp. resistance                -30 to 90°C
                                                                                     12.8" – 14"  324 – 356  22' - 12"  7.0
                              Thermal conductivity                15 x 10-5 /°C
                             Linear expansion coeff.              0.22 W/[mk]         14" – 16"  356 – 406  24' - 7"  7.5
                             Electrical Properties              Polypropylene (PP)   16" – 16.5"  406 – 419  26' - 11"  8.2
                    Specific volume         DIN 53482            1016 ohm x cm       16.5" – 20"  419 – 508  27' - 11"  8.5
                             Chemical Properties                Polypropylene (PP)   20" – 20.5"  508 – 521  29' - 6"  9.0
                               Consistent for weak acids, solvents, mineral oils and seawater.  20.5" – 22"  521 – 558  32' - 10"  10.0
                                                                                     22" – 31.5"  558 – 800  41' - 0"  12.5
                    DRILL SIZES FOR NPT                 TAP & DRILL SIZES
                        PIPE TAPS                       (Unified National Coarse)
              Tap Size (In.)  Threads/In.  Drill Dia. (In.)  Tap Size (In.)  Threads/In.  Drill Size (In.)
                 1                                   1         20          7        RECOMMENDED CLAMPING FOR BENDS
                 ⁄ 8        27         R             ⁄4
                 1          18         7            5          18          F
                 ⁄4                    ⁄ 16          ⁄16
                 3          18        37             3         16         5
                 ⁄ 8                   ⁄64           ⁄8                    ⁄16
                 1                    23            7          14          U
                 ⁄ 2        14         ⁄ 32          ⁄16
                 3                    59             1         13         27
                 ⁄4         14         ⁄64           ⁄2                    ⁄64
                                       5
                 1         11 ⁄ 2     1 ⁄ 32        9 ⁄16      12         31 ⁄64
                            1
                 1          1          1             5         11         17
                1 ⁄4       11 ⁄ 2     1 ⁄ 2          ⁄8                    ⁄32
                 1          1          47            3         10         21
                1 ⁄ 2      11 ⁄ 2     1 ⁄64          ⁄4                    ⁄32
                            1
                                       7
                 2         11 ⁄ 2     2 ⁄ 32         7 ⁄8       9         49 ⁄64
                 1                     5                                  7
                2 ⁄ 2       8         2 ⁄ 8          1          8          ⁄8
                                                     1
                                       1
                 3          8         3 ⁄4          1 ⁄8        7         63  ⁄64
                 1                     3             1          7          7
                3 ⁄ 2       8         3 ⁄4          1 ⁄4                  1 ⁄64
                                                     3
                                                                           7
                                       1
                 4          8          4 ⁄4         1 ⁄8        6         1 ⁄32
                                                     1                    11
                                                    1 ⁄2        6         1 ⁄32
                                                     3                     9
                                                    1 ⁄4        5         1 ⁄16     Bends in the line should be clamped on BOTH sides of the
                                                                1
                                                     2         4 ⁄2       1 ⁄32     bend as shown.
                                                                          25
            ZSi-Foster Engineering Catalog                                                                    – 9 –
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