1. 銅合金法(fa)(fa)蘭的尺寸公(gong)差應(ying)符合GB/T 15530.8-1995《銅合金及復合法(fa)(fa)蘭技(ji)術條(tiao)件》的規定。

2. 銅(tong)(tong)合金(jin)(jin)整體鑄造法蘭、銅(tong)(tong)合金(jin)(jin)帶頸平(ping)焊(han)(han)法蘭、銅(tong)(tong)合金(jin)(jin)平(ping)焊(han)(han)環松(song)套鋼(gang)法蘭、銅(tong)(tong)管折邊和(he)銅(tong)(tong)合金(jin)(jin)對(dui)焊(han)(han)環松(song)套鋼(gang)法蘭等四種法蘭的(de)(de)未(wei)注(zhu)(zhu)形狀和(he)位置(zhi)公(gong)(gong)差(cha)應符(fu)合GB/T 1184-1996《形狀和(he)位置(zhi)公(gong)(gong)差(cha) 未(wei)注(zhu)(zhu)公(gong)(gong)差(cha)值》中(zhong)(zhong)的(de)(de)K級；未(wei)注(zhu)(zhu)尺(chi)寸(cun)的(de)(de)線(xian)性(xing)和(he)角度尺(chi)寸(cun)公(gong)(gong)差(cha)應符(fu)合GB/T1804-2000《一般公(gong)(gong)差(cha) 未(wei)注(zhu)(zhu)公(gong)(gong)差(cha)的(de)(de)線(xian)性(xing)和(he)角度尺(chi)寸(cun)的(de)(de)公(gong)(gong)差(cha)》中(zhong)(zhong)的(de)(de)m級。另外，后兩種法蘭的(de)(de)端(duan)面應與(yu)其軸線(xian)垂直，偏差(cha)不大于30'。

3. 船用(yong)(yong)銅(tong)合(he)金(jin)(jin)整體鑄造法蘭、船用(yong)(yong)銅(tong)合(he)金(jin)(jin)帶頸平焊法蘭、船用(yong)(yong)銅(tong)合(he)金(jin)(jin)平焊環(huan)松(song)套鋼(gang)法蘭、船用(yong)(yong)銅(tong)管折邊和(he)銅(tong)合(he)金(jin)(jin)對焊環(huan)松(song)套鋼(gang)法蘭的厚度極限偏差見表9-52和(he)表9-53。

4. 所有型(xing)式(shi)的銅合金法蘭連接密封面均應進行機加(jia)工，機加(jia)工表面粗糙(cao)度(du)見表9-54。