COMPLIANCE INFO 1988 - 2000 - Laserfiche WebLink

Home Browse Search

02/22/99 18:04 N0.036 1?03 9 Repair procedures • Center the coupling around the gap it the pipe. (cont.) • Abrade all bending surfaces before applying adhesive. • Coat the cut ends of the pipe and bonding surfaces with adhesive,then bolt the coupling halves together, 13 3 I Apply adhesnre to max QIueC areas Cut ende of pipe.. Fig,94 Modemfedamagacan be repaked by cutting out rf short length of pipe and joining Me ends mYha complere aoupOng or a hall-coupling. Square-cit pipeeixfs 2 min (not hq-red1 HAff•Coupi3ng (fill coupling optlanal]i Major damage(over 3 inches in length) Damage In which more than three inches of pipe must be removed is considered major.Major damage is typicaily caused by excavation equipment or targe objects striking the pipe.Repair major damage with a replacement nipple and one or more repair couplings. • For damage less than 10 inches in length,a single full-size,14-inch long coupling will provide the required 2-inch pipe insertion at each end. • To make repairs greaterthan 10 inches in length,use two full-size or half- couplings to join the replacement nipple with the existing line as shown in fig,8-5. r! ... • Follow the guidelines given for minor damage:abrade all banding I Failure to restrict the maximum gap J Surfaces Coat all cut pipe ends with adhesive and observe spacing and between pipe ends to 3 inches and J Insertion depth requirements. to provide a minimum 2-inch J -•_ _ .— I insertion depth of pipe In the repair I 3 e Repalranea c 10 C I couplings nulliftesthe J UL listing mark. I Glued areas L__—.,...—., ------J Fig.9-4.Major damage rs repaired by f removing thsdamaged pipe.Affected areas under 10 inches in length are repaired using a fog-length Coupling to holda pipe nipple. 3 f Ax 2 min i' gap Full:.upfing Repair arae>10 Fig.9-S.Repairs over 10lnches i» Gluedareas 3max length ars marls by jolnlrkj a Wiacementnipple to sound pipe with whole orhslf-cot*)Mgsat f each end 2 min —+� . HBO-oaupi ng 14