蜗管

HVAC piping design with valve selection 1, chiller plant, cooling water between inlet valve design; 2, before the butterfly pumps, filters, pumps after the check valve, butterfly valve; 3, sets, water separator pressure differential between the bypass valve; 4, set, divider into the returning pipe valve 5, the level of dry pipe valve; 6, valve air handling units, filters, electric two-pass or three-way valve 7, fan coil valve (or plus electric two-way valve) Note: The valve is typically used when the diameter is less than 150mm used Handle Butterfly Valve (D71X, D41X); diameter greater than 150mm used worm drive butterfly (D371X, D341X).

暖通空调管道用阀门的选型设计 1、冷冻水机组、冷却水进出口设计蝶阀； 2、水泵前蝶阀、过滤器，闸门水泵后止回阀、蝶阀； 3、集、分水器之间压差旁通阀； 4、集、分水器进、回水管蝶阀 5、水平干管蝶阀； 6、空气处理机组闸阀、过滤器、电动二通或三通阀 7、风机盘管闸阀注：一般采用蝶阀时，口径小于150mm时采用手柄式蝶阀（D71X、D41X）；口径大于150mm时采用蜗轮传动式蝶阀（D371X、D341X）。

Co-operation with the above-mentioned enterprises, the company's hydroelectric generating components (such as the tail pipe lining, machine pit lining, elbow pipe, scroll, seat ring and medium-sized parts of complex structures), product quality and delivery time frame.

在与上述企业的合作中，公司生产的水电机组部件(如尾水管里衬、机坑里衬、肘管、蜗壳、座环等大中型复杂结构件)，产品质量和交货时限均深受用户好评。

Co-operation with the above-mentioned enterprises, the company's hydroelectric generating components (such as the tail pipe lining, machine pit lining, elbow pipe, scroll, seat ring and medium-sized parts of complex structures), product quality and delivery time frame were well received by users.

在与上述企业的合作中，公司生产的水电机组部件(如尾水管里衬、机坑里衬、肘管、蜗壳、座环等大中型复杂结构件)，产品质量和交货时限均深受用户好评。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。