high security bolt seals

high security bolt seals
high security bolt seals

2013年10月11日星期五

Heat pumps and cooling pump eight differences

Heat pumps and cooling pump eight differences are as follows :
A heat pump models are generally expressed by the letter R , cold oil pump with the letter J represents waterproof labels.
2 , heat pumps pump with vertical segmented , and cold pump pump with horizontal split , some heat pump to prevent the pump centerline structures.
3 , the heat pump orifice ring gap bigger. Cold oil pump is smaller.
4 , the average heat pump seal oil seal agencies note , and cold pump not inject .
5 , the heat pump timber multi- carbon steel , alloy steel , and cold pump can be made ​​of cast iron .
6 , the heat pump bearings, bearing boxes, packing boxes mechanical seals require water cooling , and cold pump can not use .
7, the heat pump needs to warm up before the start , but with cold pump , the cooling pump is unnecessary .
8, the use temperature of 200 degrees Celsius for the cold pump, 200 degrees Celsius for the heat pump identification cable ties.

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