Application of self-operated differential pressure controlling valve 自力式压力调节阀的特点及应用
Service conditions-line media, temperature, and maximum operating differential pressure 应用环境-管路流体介质,温度和最大工作压差。
Choose models according to max oprating temperature, max oprating pressure, max operating differential pressure that listed the parameter table 用户根据用汽设备的最大用汽量(乘以选用倍率系数2-3倍),最高工作压力、最高工作温度、最高工作压差对照表中参数选型。
In the aspect of supporting merchant marine, the u . s . experienced a process from " little support " to " full support ", and at last to " full and thorough support " . the u . s . has adopted policies of construction differential subsidy, operating differential subsidy, cabotage reservation, cargo reservation, preferential taxes, and financing bond by the government, and many other forms 在商船队扶持方面,美国经历了由不重视扶持到全面扶持、再从全面扶持到将扶持贯彻到底的过程;先后采用了造船补贴政策、营运补贴政策、沿海运输权保留政策、货载保留政策、税收优惠政策、以及由政府提供融资担保等各种形式的扶持方法。