Presentation on theme: "Larger Diameter Hymax® 14 – 24 Inches in Diameter"— Presentation transcript:
1 Larger Diameter Hymax® 14 – 24 Inches in Diameter Hymax is a Registered Trademark of Krausz Industries Ltd.
2 Large Diameter Specifications Meets or exceeds AWWA C219Center Ring – ASTM A53 Grade A SteelEnd Rings – ASTM A 795 SteelGaskets – NSF61 EPDM for water and sewerageNuts, Bolts, Washer, Bridge and other Misc. Hardware – Type 304 Stainless SteelNuts, Bolts and Washers include an anti-gall dry lube coatingCoating – 100% Fusion Bonded Epoxy for enhanced corrosion protection with average of 14 Mils thicknessMin Pipe Insertion Depth – 2.25 inchesWorking Pressure inch – 260 psi, inch – 232 psi
3 Large Diameter Hymax Wide Range of Fit = Reduced Inventory Less Bolts = Fast Installation
4 Installation Instructions for 14” through 24” Large Diameter Hymax Couplings
5 Installation Instructions for 14” through 24” Large Diameter Hymax Couplings
6 Always unpack the coupling and inspect for shipping damage PrecautionsPlease make the following notations when installing larger diameter Hymax CouplingsAlways Verify Pipe Diameter with an O.D. Tape and Make sure it falls within the diameter range of the couplingAlways unpack the coupling and inspect for shipping damagePrepare pipe ends and mark the stab depth according to directionsBack out Centering pinsSize Gasket According to InstructionsNever Lubricate Bolts (they are pre-lubricated)Do lubricate ductile iron and asbestos pipeDo not lubricate PVC, Steel or Polyethylene Pipe surfaces
7 The Purpose of Centering Pins Prevention of Coupling Drift Over Pipe End When in Maximum TransitionPressure Build Up Here Can Create Coupling MovementBig EndSmall EndFlow Direction
8 The Purpose of Centering Pins If Coupling Moves Due to Pressure Differential, Centering Pin Bottoms Out on Pipe End Preventing Loss of SealSmall EndFlow DirectionBig End
9 14 to 24 Inch Hymax Installation Procedure Prepare Pipe Ends – De-scale and Clean, Mark Pipe Ends for a Maximum Stab Depth of 5”5”5”
10 Loosen Centering Pins (Anti Drift Pins) 1 - Pin in Set Position2 – Pin Set for InstallationLoosening of Pin allows for full Retraction of Coupling over pipe end
11 14 to 24 Inch Hymax Stab Pipe Ends to the Proper Insertion Depth Remaining End Gap Between Pipe Ends is 2 – 3 InchesPipe Ends Stabbed into Couplings
12 Pins are One Inch Diameter – outside view After Stabbing Pipe, Tighten the Centering Pins to seat the “O”Ring Seal on the back side of the PinPins are One Inch Diameter – outside view
14 Tighten All Bolts on Compression Ring to the required torque to properly seat the Gasket Two Bolts per EndTorque Requirement is 150 ft. lbs.Required Wrench – 17 to 21 inch long wrench handle and 15/16” (24 mm) pass through socketCross Tighten evenlyAlways check for leaks prior to burialIf leakage occurs, re-torque nuts and bolts as required.