1
Give catchment conduit installation
1.1 quality common fault: The bolt length in flange join, direction nots agree with add up to normative regulation, bolt to be polluted.
(GB 50242-2002 the 3.3.15th the 5th paragraph: ? of solemn Tu ǎ amuses envy of Yong ɡ originally all ざ throws Ψ daughter-in-law to sunlight calumnying Guan of bamboo-plaited basket or suitcase of Υ of brandish of alkyne of ざ of Fu Mou of beans of Ju of bosom of of Xi of Wei of slash 〗 is crisp this bag?/2. )
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1.2 quality common fault: Tiny bit the length of the Ruth outside take-overing nots agree with add up to normative regulation.
(GB 50242-2002 the 3.3.15th the 6th paragraph: ? Yan screen needs dark blue of Nai dried meat holds Shan solemn Yan high to hire?~3 of hole τ to buckle appearing whorl, redundant hemp silk should clear clean and do anticorrosive processing)
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1.3 quality common fault: Material of water supply conduit is disobeyed character strong a regulation.
(GB 50242-2002 the 4.1.2nd: Water supply conduit must use the pipe fitting that suits with photograph tubal material. The material that place of system of life water supply involves must achieve drinking water sanitation standard, 4.1.3: The galvanization steel tube that tubal diameter is less than or is equal to 100mm should use threaded coupling, the galvanization layer surface that when covering silk to buckle, destroys and appear whorl part should do anticorrosive processing; The galvanization steel tube that is in charge of diameter to be more than 100mm should use flange or chuck formula special pipe fitting joins, the weld of galvanization steel tube and flange answer 2 times galvanization. )
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1.4 quality common fault: Spot of galvanization steel tube solders flange.
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1.5 quality common fault: Paragraph of length is in charge of to not agree with continuously before water meter add up to normative regulation.
(GB 50242 the 4.2.10th: Install water meter of snail ala type, before the watch as due as valve the linear canal that is not less than diameter of interface of 8 times water meter paragraph. Watch case is apart from wall surface completely for 10~30mm)
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2
Stainless steel (copper) solder, installation of cistern of join of stainless steel flange, stainless steel
2.1 quality common fault: Stainless steel law uses bolt of common carbon steel or galvanization bolt repeatedly, and did not take insulation step, cause produce electrochemistry to corrode.
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2.2 quality common fault: Stainless steel material did not undertake soldering splattering to stainless steel surface after solder, the craft processing such as processing of welding line pickling, passivation, the hair such as surface of stainless steel of as a result, welding line is rusty corrode.
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2.3 quality common fault: Stainless steel canal and carbon steel canal solder directly.
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3
Of conduit raise, hanger setting
3.1 quality common fault: Conduit hanger installs the wall system that builds in build by laying bricks or stones to go up.
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3.2 quality common fault: A hanger setting of groove join conduit is unreasonable.
(unexpected pipe hanger / bracket should be installed in contact two side mix 3, 4, the pipe fitting such as different diameter canal swims up and down the two side of join connect, hanger / the span of bracket and connect is unfavorable be less than 150mm and be more than 300mm)
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4
Catchment and wholesome appliance are installed
4.1 quality common fault: Catchment conduit sweeps a setting undeserved, cannot clear, or lack sweep a mouth.
(GB 50242-2002 the 5.2.6th the 2nd: In join 2 reach 2 above w.c.pan or 3 reach the foul water with 3 above implemental sanitation the setting answers to sweep a mouth on unexpected pipe. Fall in floor when waste pipe suspensory when laying, but will sweep a mouth to be set on floor of a building, of waste pipe start sweep mouth and the metope distance with vertical conduit to must not be less than 200mm; When if waste pipe start installs a head to replace,sweeping a mouth, with metope the distance must not be less than 400mm)
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4.2 quality common fault: Floor drain type selecting is undeserved, water seals deepness to be less than 50mm.
(GB 50242-2002 the 7.2.1st: The installation of catchment bolt and floor drain is Ying Pingzheng, firm, under catchment surface, periphery does not have leakage. Floor drain water seals height to must not be less than 50mm. )
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4.3 quality common fault: Floor drain, sweep the position such as the mouth the setting is undeserved.
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4.5 quality common fault: The basin below the stage does not have independent hanger, installation not firm or cannot change.
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4.6 quality common fault: Drainpipe of the basin that wash a face does not have the turn that put water.
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5
Cistern installation
5.1 quality common fault: Direct from the drinks water cistern outdoor put upside down into height of nozzle of water, overflow (wirereinforced suction hose of overflow nozzle prep above mouth) cut off a distance without air or flow backwards without installation prevent implement.
(" the building designs a standard to catchment " GB 50015-2003 (2009) , cistern of 3.2.12 lives drinking water (box) construction and tubing, should accord with following regulation:
1 manhole, connect tracheal, overflow the canal is due prevent biology to enter pool (box) measure;
Appropriate of 2 wirereinforced suction hose are in cistern (box) above of overflow water level is received;
Conduit of 3 pass in and out is decorated must not produce current short circuit, should set diversion plant when necessary;
4 must not admit fire control conduit to try press the circumfluence water such as water, pressure release water or overflow water;
5 discharge conduit and the drain off water that overflow runs should accord with this standard the 4.3.13rd regulation;
6 cistern (box) material of build by laying bricks or stones of qualitative, line mixes material wall paint, must not affect water quality. )
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Flow backwards prevent implement:
5.2 quality common fault: Cistern overflow nozzle enters barrel-drain or collect well.
(GB50242-2002 the 4.4.5th: Cistern overflow canal and release canal should be installed around catchment place, but must not join directly with drainpipe)
6
Pressure catchment
6.1 quality common fault: Pressure catchment package is not total, or lack lie between shake soft receive, or lack pressure watch.
(lack lie between shake soft receive what will cause vibration to deliver, the working status that lacks pressure watch to will not affirm water pump is normal (water pump attaint, bibulous mouth jams etc. )
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6.2 quality common fault: Pressure catchment component installs ordinal mistake, operation valve installs an inter or most below.
(the part that operates valve to install positional mistake to will bring about its upside cannot be maintained or change. )
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7
Water pump and accessary conduit are installed
7.1 quality common fault: Water pump is entered, the place of the conduit bracket of exit is wrong, the shock absorber invalidation that makes water pump falls.
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7.2 quality common fault: Installation of balata damping mat is improper, lose damping function.
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7.3 quality common fault: Water pump fills up iron to install a mistake.
(Place water pump go up in the foundation, with mat iron water pump make level, after water pump is installed, same group fills up iron to answer electric welding is together, lest suffer Li Shisong to move)
7.4 quality common fault: Pressure watch diameter and installation height are not harmonious.
(for convenient operation personnel is inspected read, diametical 100mm can be chosen when less than of viewing distance 1m the pressure watch of the following norms; Above of viewing distance 1m, the pressure that diametical 100mm should choose when 2m less than is expressed; When less than of 5m of above of viewing distance 2m, the pressure that should choose 200mm diameter is expressed; When viewing distance exceeds 5m, should choose the pressure watch that is not less than 300mm diameter. )
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8
Water system
8.1 quality common fault: The siphon rainwater mouth that smooth roofing installs does not have catchment hole, cannot produce siphon.
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8.2 quality common fault: Storm sewer mouth is apart from ground height to be not worth.
(Storm sewer gives water mouth to be apart from 100-150mm of level ground of the ground outdoor)
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8.3 quality common fault: Fall into water height of buccal grate installation is undeserved.
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8.4 quality common fault: Rainspout bend is chosen undeserved.
(perpendicular rainwater rainspout can use combination of 2 45 degrees of bend, cannot use 90 degrees of bend)
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