Polyethylene Water/Sewer - JM Eagle

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Caution: To assure flow control, yet prevent damage to the pipe,tools have mechanical stops to limit the minimum gap between thesqueeze bars. Recommended minimum gaps between the squeeze barsfor JM Eagle Municipal & Industrial Water or Sewer Pipe are based onthe formula:min.gap = (2)(max wall thickness)(0.7)In addition to observing the minimum gap distances between bars, the barsthemselves should be rounded to prevent pipe damage.The user also may want to consult the “Standard Guide for Squeeze-Offof Polyolefin Gas Pressure Pipe and Tubing,” Designation F1041, issued bythe ASTM.7.2 Precautions for Squeeze-Off• Certain precautions should be taken to prevent damage to the squeezetools or to JM Eagle Municipal & Industrial Water or Sewer Pipe duringsqueeze-off in recognition of the large forces required for flow control, particularlyin large main sizes. Damage to the pipe from improper squeezeoffprocedures may cause eventual failure.• Make certain the pipe is centered and squared in the squeeze tool. It isimportant that the pipe be free to spread as it flattens. Failure to do so mayprevent flow control or result in damage to the pipe or the tool.• Locate the squeeze point at least three pipe diameters away from the nearestfitting or butt-fused joint. Failure to do so may result in damage to thefittings or joints.• Squeeze-off JM Eagle Municipal & Industrial Water or Sewer Pipe onlyonce in the same place. It is possible for scale or other metal particlescontained within the flow to become trapped at the squeeze point. A secondsqueeze in the immediate area of the first could force these particlesto penetrate into or through the pipe wall.• Always use a squeeze tool with gap stops to limit the amount of squeezeand use the proper gap stops for the pipe size being squeezed. Usingsmaller gap stops or otherwise over-squeezing the pipe may result in dam-HDPE WATER/SEWER PIPING SYSTEM TECHNICAL & INSTALLATION GUIDE41
age to the pipe or tool.• A leak tight flow control will not always be obtained through squeeze-off.If more complete flow control is required, a valve should be used or additionalsqueeze tools used in series to supplement each other.• Close the squeeze tools until flow is controlled or until the gap stopsmake contact. Do not use extension levers or “cheater bars,” or otherwiseabuse the tools in trying to effect a squeeze-off. Such abuse mayoverstress the tool and result in failure of the tool and release of the flow.Any damaged tool should be repaired or replaced before use for squeezeoffof JM Eagle Municipal & Industrial Water or Sewer Pipe.• Squeeze JM Eagle Municipal & Industrial Water or Sewer Pipe slowly oruse momentary pauses in the operation to allow for pipe relaxation andreduction in resistance to closure. This is particularly helpful in larger diametersor when the pipe becomes stiffer in cold weather.• A release rate of 0.5 inches/minute or less is recommended by ASTMF1041 based on a GRI/Battelle Study, “Effect of Squeeze-Off Practicesand Parameters on PE Gas Pipe Damage.” ** Twelfth Plastic Fuel Gas Pipe Proceedings, pp. 228-242 (1991).42 HDPE WATER/SEWER PIPING SYSTEM TECHNICAL & INSTALLATION GUIDE
Page 1 and 2: HIGH-DENSITyPOLYETHYLENEWATER/sewer
Page 8 and 9: Publications by the American Societ
Page 10 and 11: or together with internal pressure
Page 12 and 13: 3.2.1 Unloading Site RequirementsTh
Page 14 and 15: 3.4 DraggingOccasionally, when long
Page 16 and 17: 3.9 Pipe Placement in TrenchesJM Ea
Page 18 and 19: 4.0 TESTING4.1 Leak TestingThe inte
Page 20 and 21: Other pressure testing procedures m
Page 22 and 23: • The piping system is so designe
Page 24 and 25: ENGINEER.5.1 Damage AssessmentDamag
Page 26 and 27: 5.2 Heating Tool MaintenanceClean h
Page 28 and 29: Table 3Pipe SizeSocket Fusion Time
Page 30 and 31: 6.2 Butt Fusion: Reference PPI’s
Page 32 and 33: perature-measuring device should be
Page 34 and 35: Visually mitered (angled, off-set)
Page 36 and 37: Heat Soak Force—The force (pounds
Page 38 and 39: surized or non-pressurized main.6.2
Page 40 and 41: Figure DCorrectly Made Socket Fusio
Page 44 and 45: Notes:
Page 47: Revised March 2011JME-11B© J-M Man

Polyethylene Water/Sewer - JM Eagle

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