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1、中華人民共和國國家標(biāo)準(zhǔn)UDC621.643.4:678.743.22化工用硬聚氯乙烯管件GB4220-84Unplasticizedpolyvinylchloride(PVC)fittingsforchemicalindustry1適用范圍本標(biāo)準(zhǔn)適用f注塑法制造的硬聚氯乙烯管件(以下簡稱管件)。(r'與化_L用硬聚氯乙烯管材配套使用，卜要用f輸送某些。一40℃的酸堿等腐蝕性液體。木標(biāo)準(zhǔn)[I]烘箱試驗方法完全等效采用ISO2043-1974《壓力F使用的彈性密封圈式連接的硬聚氯乙烯(PVC)注塑答件—烘箱試臉)o2品種規(guī)格2.1削月種彎頭、450彎頭、90。三通、45。三通、管套、異
2、徑套、法蘭變接頭、法蘭。2.920形狀、尺、少及公差2.2.1陰接頭及其通用尺寸圖1國家標(biāo)準(zhǔn)局1984一03一0I發(fā)布1984一12一01實施CB4220-84表1毫米dd21dDt公稱尺寸，二音de基本尺寸公差基本尺寸公差基本尺寸公差基本尺寸最小尺寸最小尺寸1010.3士0.1010.1土0.1012土0，56.114_1211212.3士0.1212.1士0.1212士0。58.116.1211616.3士0.1216.1土0.1214士0.512.120.1212020.4土0.1420.2士0.1416士0.815.624.82.31.162525.5士0.1625.2士0
3、.1619士0.819.630.82.81.43232.5土0.1832.2士0.1822土0.82539.43.61.84040.7士0.2040.2士0.2026士131.249.24.52.265050.7土0.2250.2士0.2231士13961.45.62.86363.9士0.2463.3士0.2438士149.177.57.13.567576士0.2675.3土0.2644士158.5928。44.29091.2士0.3090.4士0.3051士270110.610.15.06110111.3士0.34110.4士0.3461士294.21278.14.0612512
4、6.5士0.38125.5士0.3869土2107.1143.99.24.6140141.6士0.42140.5士0.4277土2119.316210.65.3160161.8土0.46160.6士0.466士25145.21767.73.86注、配合時最小承插深度為1/2de.664GB4220-842.2.2900彎頭圖2表2毫米公稱尺寸ZLdeIO6士118127土119169土1232011士12725133.55"-i、32.532177t7-.}i.s394021二:475026‘}，576332.5二尸70.57582.538.5-}今59046一19711056-6
5、11712563.5{132.51407l1.-'i14816081-i167注:Sr他尺t按2.2.1規(guī)定。66SGB4220-842.2.3450彎頭圖3表3毫米公稱尺、JZLde103士115123.5士3.515.5164.5土4.518.5205土121256‘{“25327.5"}s29.5409.5‘{35.550比5"zs42.563144‘1{3'.32527516.5‘}60.59019.5‘{70.511023.5一{84.512527"s961403?！畕10716034{120Y卜1!-1t尺、J一按2.2.1規(guī)定。6s6GB4220-842.2.490幾
6、通圖4公稱尺寸ZZ2Z3LL2deL3106士16士16士1181818127土17士17士11919191691I9士19士12323232011士111土111士12727272513.5‘丫13.5‘{z13.5‘:，32.532.532.53017’尸17‘{617'is3939394021‘{21‘{21:4747475026’護26:s26‘{s5757576332.532.5‘{232.5}z70.570.570.57538.5‘{38.5‘}38.5‘{82.582.582.59046‘:46‘{46{97979711056‘{56’}56‘}11711711712
7、563.5‘}63.5‘{63.5‘干132.5132.5132.514071‘{71‘{71:14814814816081‘}81}81‘干167167167注:其他尺寸按2.2.1規(guī)定。667GB4220-842.2.545“二三通圖5表5毫米公稱尺寸Z,Z2Z3LI_2L3de206’:27士329士3224351257‘:33士335士3265254328{42;45+;3064674010‘:51;54’;3677805012_j63+;67‘:439498
