美国瓦茨双止回防回流阀可以按照连接类型、通径和接头构成许多不同的组合。
Watts Dual Check Backflow Preventers can be specified in many different combinations of connection types, sizes, and union options.
用户要由安全饮用水供应商在水表处安装法定的双止回防回流阀。
The user installs a dual check back flow preventer at the water meter as prescribed by the supplier of safe drinking water.
这种双止回防回流阀应该按照美国国家标准化组织(ASSE)标准1024进行设计。
The dual check backflow preventer shall be designed under the ASSE Standard 1024.
双止回防回流阀用于低危险交叉连接。持续压力应用场合。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross-connections. Continuous pressure applications.
双止回防回流阀用于低危险交叉连接。持续压力应用场合。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross-connections. Continuous pressure applications.
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