FREEZING WEATHER PRECAUTION: Subsequent to testing a piping system, gate valve should be in an open position to allow complete drainage.
FREEZING WEATHER PRECAUTION: Subsequent to testing a piping system, gate valve should be in an open position to allow complete drainage.
冰冻气候预防措施：在测试管道系统后，闸阀应该处于开启状态，使得完全排泄能够进行。