1. 銅(tong)合金法蘭的尺寸公差(cha)應符合GB/T 15530.8-1995《銅(tong)合金及(ji)復合法蘭技(ji)術條(tiao)件》的規定。

2. 銅(tong)合(he)(he)(he)金整(zheng)體鑄造法(fa)(fa)蘭、銅(tong)合(he)(he)(he)金帶(dai)頸平(ping)焊法(fa)(fa)蘭、銅(tong)合(he)(he)(he)金平(ping)焊環(huan)(huan)松套鋼法(fa)(fa)蘭、銅(tong)管折邊和(he)銅(tong)合(he)(he)(he)金對焊環(huan)(huan)松套鋼法(fa)(fa)蘭等四種(zhong)法(fa)(fa)蘭的未(wei)注(zhu)(zhu)形(xing)狀和(he)位(wei)置公(gong)(gong)差應符合(he)(he)(he)GB/T 1184-1996《形(xing)狀和(he)位(wei)置公(gong)(gong)差 未(wei)注(zhu)(zhu)公(gong)(gong)差值》中(zhong)的K級；未(wei)注(zhu)(zhu)尺寸的線(xian)性和(he)角度尺寸公(gong)(gong)差應符合(he)(he)(he)GB/T1804-2000《一般(ban)公(gong)(gong)差 未(wei)注(zhu)(zhu)公(gong)(gong)差的線(xian)性和(he)角度尺寸的公(gong)(gong)差》中(zhong)的m級。另外，后兩種(zhong)法(fa)(fa)蘭的端面應與(yu)其軸線(xian)垂直，偏差不大于30'。

3. 船(chuan)用(yong)銅(tong)合(he)金整(zheng)體鑄(zhu)造法蘭(lan)、船(chuan)用(yong)銅(tong)合(he)金帶頸(jing)平焊(han)(han)法蘭(lan)、船(chuan)用(yong)銅(tong)合(he)金平焊(han)(han)環松套鋼法蘭(lan)、船(chuan)用(yong)銅(tong)管折邊和銅(tong)合(he)金對焊(han)(han)環松套鋼法蘭(lan)的厚度極限偏差見表9-52和表9-53。

4. 所有型式(shi)的銅合金(jin)法蘭(lan)連接密封面均(jun)應進行機加工，機加工表(biao)面粗(cu)糙度(du)見表(biao)9-54。