ASTM A213 T12 Rifled Boiler Tube Carbon Steel Seamless Pipe

ASTM A213 T12 Rifled Boiler Tube Carbon Steel Seamless Pipe

Rifled Tubeis to process one or several spirally rising rifling lines on the inner wall of the pipe,

which is a rectangular groove from the cross section. The internal thread pipe is also called 

dry steam pipe, internal rib pipe or internal fin pipe. In the central air conditioner, it is 

mainly used in the dry evaporator.

Application for rifled tube:
The internal thread pipe is also called dry steam pipe, internal rib pipe or internal fin pipe. 

In the central air conditioner, it is mainly used in the dry evaporator. During heat exchange, 

who outside the pipe is cooled by the evaporating and expanding refrigerant in the pipe; 

It is also used in domestic and commercial air conditioning heat exchangers or high heat pipes. 

The internal surface area per unit length of internally threaded pipe is 1.5 ~ 2 times that of ordinary 

smooth copper pipe, and its heat transfer coefficient is 1.5 ~ 2.4 times that of smooth copper pipe of 

the same specification. The flow resistance of the carrier is only increased by 3-5%, which can save

energy by 20-35%, and the weight of the air conditioner suitable for refrigeration is reduced by 10-25%.

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