KLAMPz K05 Lightweight Flexible Coupling

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Light Weight Rigid Coupling Grooved

UL-listed and FM-approved KLAMPz K05 Lightweight Flexible Couplings are available up to nominal size 14 inches and are UL/FM pressure rated to 300psi with a maximum working pressure rating of 500psi. Ideal for waterworks and agriculture use.

Nominal Size InchesPipe OD InchesUL / FM PressureMaximum Working PressureDimension D InchesDimension L InchesDimension W InchesBolt/Nut Size Inches
1.251.660300 psi500 psi2.504.231.770.375 x 1.5
1.51.900300 psi500 psi2.724.491.770.375 x 1.5
22.375300 psi500 psi3.294.881.810.375 x 2.125
2.52.875300 psi500 psi3.745.511.810.375 x 2.125
33.500300 psi500 psi4.496.141.810.375 x 2.125
44.500300 psi500 psi5.597.441.970.5 x 2.5
55.563300 psi500 psi6.698.741.970.5 x 2.5
66.625300 psi500 psi7.729.611.970.5 x 2.5
88.625300 psi500 psi9.9212.442.360.625 x 3.25
1010.750300 psi500 psi12.5615.472.520.75 x 3.5
1212.750300 psi500 psi14.7217.832.560.75 x 4.25
1414.000300 psi500 psi18.0920.082.950.875 x 4.375
  • Flexible Couplings in straight runs should be supported as close to the coupling as possible, or within the distance of 1/6 the span, and evenly spaced.
  • Flexible Couplings provide either axial or longitudinal movement. The available movement for roll-grooved joints is 1/2 of cut-groove dimensions per ANSI/AWWA C606-06.
  • When pre-setting power nut-drivers, the following torque should not be exceeded. Excessive tightening of the nuts could result in joint failure. (Values Lbs-Ft.) 3/8″=50-59; 1/2″=81-92; 5/8″=147-190; 3/4″=177-179; 7/8″=202-221.
  • Coating options: Epoxy, Paint, Dacromet, Hot-Dip Galvanized.
  • UL-listed and FM-approved