Page 9 - ZF Beta Hydraulic Clamps
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Beta Clamp Technical Data
  BETA CLAMPS TORQUE AND MATERIAL PROPERTIES RECOMMENDED PIPE CLAMP SPACING
 TIGHTENING TORQUE
 Clamp
 Group
 Bolt Size
 Aluminum Cushion
 Polypropylene Cushion
 Polyamide Cushion
 Lbf
  Nm
  Lbf
  Nm
  Lbf
  Nm
  BETA STANDARD
  S1 - S7
 1 ⁄ 4"-20
7
10
6
8
6
8
BETA HEAVY
 H3, H4
 3⁄8"-16
 22
 30
 9
 12
 15
 20
 H5
 3⁄8"-16
 26
 35
 11
 15
 18
 25
 H6
  1⁄2"-13
  41
  55
  29
  30
  30
  40
 H7
 5⁄8"-11
 89
 120
 33
 45
 41
 55
  BETA TWIN
 T1
1 ⁄ 4"-20
-
4
6
4
6
 T2 - T5
  5 ⁄ 16"-18
  -
  9
  12
  9
  12
  The outlined particulars are approximate values and are only valid as references, which are not binding, also with regard to possible protection of third parties, and they do not exempt you from your own examination of suitability of the products delivered by us. 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 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, that we guarantee the perfect quality of our products according to our general sales and delivery conditions.
 RECOMMENDED PIPE CLAMP SPACING
        Pipe O.D.
 Spacing
 in
 mm
 ft - in.
m
 0.24" – 0.5"
 6 – 12.7
 3' - 3"
1.0
 0.5" – 0.87"
 12.7 – 22
 3' - 11"
1.2
 0.87" – 1.26"
 22 – 32
 4' - 11"
1.5
 1.26" – 1.5"
 32 – 38
 6' - 7"
2.0
 1.5" – 2.24"
  38 – 57
  8' - 10"
 2.7
2.24" – 2.95"
57 – 75
9' - 10"
3.0
 2.95" – 3"
 75 – 76.1
 11' - 6"
3.5
 3" – 3.5"
 76.1 – 88.9
 12' - 2"
3.7
 3.5" – 4"
 88.9 – 102
 13' - 1"
4.0
 4" – 4.5"
 102 – 114
 14' - 9"
4.5
 4.5" – 6.6"
  114 – 168
  16' - 5"
 5.0
6.6" – 8.6"
168 – 219
19' - 8"
6.0
 8.6" – 12.8"
 219 – 324
 21' - 12"
6.7
 12.8" – 14"
  324 – 356
  22' - 12"
 7.0
14" – 16"
356 – 406
24' - 7"
7.5
 16" – 16.5"
  406 – 419
  26' - 11"
 8.2
16.5" – 20"
419 – 508
27' - 11"
8.5
 20" – 20.5"
 508 – 521
 29' - 6"
9.0
 20.5" – 22"
  521 – 558
  32' - 10"
 10.0
22" – 31.5"
 558 – 800
 41' - 0"
 12.5
     BETA CLAMP MATERIAL PROPERTIES
 Material Properties
 Polypropylene (PP)
  Density
 –
0.906 g/cm3
 Tensile strengt h
  DIN 53454
  25-35 N/mm2
 Flexure stress limit
DIN 53452
36N N/mm2
 Compressive strength
 DIN 53454
 90 N/mm2
 Impact strength
  DIN 53453
  No break
Thermo Properties
  Polypropylene (PP)
 Max. temp. resistance
-30 to 90°C
 Thermal conductivity
 15 x 10-5 /°C
 Linear expansion coeff.
 0.22 W/[mk]
 Electrical Properties
 Polypropylene (PP)
  Specific volume
  DIN 53482
 1016 ohm x cm
Chemical Properties
  Polypropylene (PP)
 Consistent for weak acids, solvents, mineral oils and seawater.
   DRILL SIZES FOR NPT PIPE TAPS
 Tap Size (In.)
 Threads/In.
 Drill Dia. (In.)
 1⁄8
 27
 R
 1⁄4
 18
 7⁄16
 3⁄8
  18
  37⁄64
 1⁄2
14
23⁄32
 3⁄4
 14
 59⁄64
 1
 111⁄2
 15⁄32
 11⁄4
  111⁄2
  11⁄2
 11⁄2
111⁄2
147⁄64
 2
 111⁄2
 27⁄32
 21⁄2
 8
 25⁄8
 3
 8
 31⁄4
 31⁄2
  8
  33 ⁄4
 4
 8
 41⁄4
  TAP & DRILL SIZES (Unified National Coarse)
 Tap Size (In.)
 Threads/In.
 Drill Size (In.)
 1⁄4
 20
 7
 5⁄16
 18
 F
 3⁄8
  16
  5⁄16
 7⁄16
14
U
 1⁄2
 13
 27⁄64
 9⁄16
 12
 31⁄64
 5⁄8
 11
 17⁄32
 3⁄4
 10
 21⁄32
 7⁄8
  9
  49⁄64
 1
8
7⁄8
 11⁄8
 7
 63⁄64
 11⁄4
 7
 17⁄64
 13⁄8
  6
  17⁄32
 11⁄2
6
111⁄32
 13⁄4
  5
  19⁄16
 2
 41⁄2
 125⁄32
     RECOMMENDED CLAMPING FOR BENDS
       Bends in the line should be clamped on BOTH sides of the bend as shown.
    ZSi-Foster Engineering Catalog
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Clamp Spacing
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