3.4.1.Hand operated expansion valve

Unit 3 - Parts of refrigeration systems

3.4.1.Hand operated expansion valve
As the name indicates this valve is operated manually and is adjusted by an operator to fill a definite quantity of refrigerant to the system. The valve is controlled manually to maintain the required flow of refrigerant to the system. This valve is used in cold storage, ice plant, ware houses where there is a almost constant load. This valve is not suitable for installation where the load varies and the compressor runs intermittently to maintain a constant temperature. The valve is needed to be adjusted by hand at all time & it is very difficult also it is not used in small installations.

Last modified: Monday, 22 August 2011, 10:22 AM