泡沫(mo)管帽(mao)與封頭(tou)形狀(zhuang)差不(bu)多,材質為不(bu)銹鋼(gang)的較(jiao)多,管帽(mao)尺(chi)寸比(bi)較(jiao)小,可以鍛(duan)造;封頭(tou)尺(chi)寸比(bi)較(jiao)大一(yi)(yi)點,一(yi)(yi)般(ban)用(yong)鋼(gang)板壓(ya)制,管帽(mao)一(yi)(yi)般(ban)用(yong)于(yu)管子的端(duan)部(bu),封頭(tou)用(yong)于(yu)容(rong)器設備(bei)的上下(立(li)式設備(bei))部(bu)位或(huo)左右端(duan)部(bu)(臥(wo)式設備(bei)),
焊接在(zai)管(guan)端或裝在(zai)管(guan)端外螺(luo)紋上以(yi)蓋堵(du)管(guan)子(zi)的管(guan)件。用(yong)來封閉管(guan)路(lu),作用(yong)與管(guan)堵(du)相同 塑料(liao)管(guan)帽是采用(yong)塑料(liao)為(wei)主(zhu)要原料(liao)加工而(er)成管(guan)帽