PVC-O管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)體現(xian)了著很(hen)高的(de)(de)(de)(de)MRS，但制作管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁時(shi)，務必要(yao)(yao)與此(ci)同(tong)(tong)時(shi)考慮一(yi)下管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道務必要(yao)(yao)體現(xian)了著任何的(de)(de)(de)(de)環(huan)硬度(du)(du)(du)(du)，以抗住管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)網一(yi)瞬間(jian)高壓(ya)(ya)氣時(shi)應(ying)(ying)(ying)感受到的(de)(de)(de)(de)外(wai)邊壓(ya)(ya)差。基于(yu)標準(zhun)的(de)(de)(de)(de)法律規(gui)定，氟pp塑料管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道環(huan)硬度(du)(du)(du)(du)應(ying)(ying)(ying)當需小于(yu)4kPa。氟pp塑料管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道硬度(du)(du)(du)(du)求(qiu)算(suan)表(biao)達(da)式(shi)正確：
S=(E en3 )/(12dn3 )，各舉：
S——環(huan)強度(du)(du)(du)(du)，廠(chang)家Pa;
E——回(hui)粘性模量，行業(ye)為Pa; PVC-O的(de)(de)(de)(de)回(hui)粘性模量為4000MPa;
en ——公稱焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁厚，計量單位(wei)為mm;
dn ——公稱直勁，企事(shi)業(ye)單位(wei)為mm;
在(zai)(zai)此(ci)算(suan)起(qi)出(chu)PVC-O管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)件各公稱截面積下的(de)(de)(de)(de)厚度(du)(du)(du)(du)、SDR品(pin)類、S品(pin)類
PVC-O引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)致使(shi)具備著很(hen)高的(de)(de)(de)(de)要(yao)(yao)效果，在(zai)(zai)能(neng)受壓(ya)(ya)差差時(shi)，引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)厚應(ying)(ying)(ying)該在(zai)(zai)很(hen)大(da)程(cheng)度(du)(du)(du)(du)上減低，對待(dai)那(nei)些(xie)1.17MPa上面的(de)(de)(de)(de)引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)實在(zai)(zai)這(zhe)樣：公稱壓(ya)(ya)差遠遠超出(chu)1.17MPa時(shi)，PVC-O引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)比傳統(tong)意義型(xing)引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)厚在(zai)(zai)很(hen)大(da)程(cheng)度(du)(du)(du)(du)上減低的(de)(de)(de)(de)同(tong)(tong)一(yi)，引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)環(huan)硬度(du)(du)(du)(du)同(tong)(tong)一(yi)擁(yong)有要(yao)(yao)。雖然(ran)對待(dai)那(nei)些(xie)公稱壓(ya)(ya)差值為1.17MPa的(de)(de)(de)(de)引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)來，從學說上PVC-O引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)厚要(yao)(yao)低過(guo)傳統(tong)意義型(xing)引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)焊(han)(han)(han)(han)(han)接(jie)(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)厚，但此(ci)情此(ci)景引(yin)(yin)水(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)環(huan)硬度(du)(du)(du)(du)達(da)不(bu)及4kPa的(de)(de)(de)(de)要(yao)(yao)。
由(you)于(yu)，PVC-O管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道比較(jiao)合適應(ying)(ying)(ying)運于(yu)公稱有壓(ya)(ya)力不(bu)超值為1.25MPa這(zhe)些(xie)的(de)(de)(de)(de)場景，而(er)相應(ying)(ying)(ying)的(de)(de)(de)(de)的(de)(de)(de)(de)SDR/S產品(pin)為41/20。