With a back-siphonage condition created, secondary check seals tightly against downstream seat. Primary check seals tightly against diaphragm. Atmospheric port is now open permitting air to enter air break chamber. In the event of fouling of downstream check valve, leakage would be vented to atmosphere through the vent port thereby safeguarding the potable water system from contamination.
基于1个网页-相关网页
secondary check valve 辅助单向阀
secondary brake check 辅助制动器检查
secondary brake ball check 辅助制动器球阀
secondary resolver check valve 辅助解析器单向阀
secondary air reservoir check valve 辅助贮气罐单向阀
sacv secondary air check valve 二次空气单向阀
The rolling upgrade process starts with a check to see if the secondary server can be transformed into an ER server.
滚动升级流程的第一步是检查辅助服务器是否能够转换为 ER 服务器。
Similarly, you can select the check box under Preferred secondary CF to create a secondary CF, and a DB2 member, on a different host in the cluster.
类似地，您可以选择Preferred Secondary CF下的复选框，在集群中的不同主机上创建一个辅助CF和一个DB 2成员。
Directory probes that check the health of a number of directory-related tasks and processes, including the LDAP task, replication, indexing, NRPC, and secondary LDAP search response times, and so on.
目录探测器，检查许多与目录相关的任务和过程的健康情况，这些任务和过程包括LDAP任务、复制、编索引、NRPC和次级LDAP搜索响应时间，等等。
应用推荐