TK - DL可以检测压力真空断路阀，减压防回流阀或双止回阀总成。
The TK-DL can test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies.
系列8是一种独特的真空断路阀，专用于使移动式软管连接到软管螺纹上。
Series 8 is a line of unique vacuum breakers specially made to permit the attachment of portable hoses to hose thread faucets.
按照制造商的说明书，正如计划所注明，应该安装一个防泄漏或溢出大气真空断路阀。
A spill-resistant atmospheric vacuum breaker shall be installed, in accordance with the manufacturer's instructions, as noted on the plans.
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