Valve ends shall have full depth aNSI threads or extended solder connections and be manufactured to comply with MSS-SP110.

• 阀门连接端口应该具有足够深度的美国国家标准协会ansi螺纹,或加长焊接端口,并按照美国阀门和管件制造商标准化协会MSS-SP110标准制造。