Differential pressure controller CWK-11refrigeration ammonia pump control switch

Differential pressure controller CWK-11refrigeration ammonia pump control switch
Differential pressure controller CWK-11refrigeration ammonia pump control switch
Differential pressure controller CWK-11refrigeration ammonia pump control switch

Differential pressure controller CWK-11refrigeration ammonia pump control switch
Differential pressure controller CWK-11 refrigeration ammonia pump control switch. CWK-11 type bellows pressure difference controller is used to protect the ammonia pump or other machinery in the refrigeration system. It can guarantee the minimum pressure head that the ammonia pump must have when it is running normally.

Too low pressure head of the ammonia pump indicates that the flow is insufficient, and running short of liquid will damage the ammonia pump and affect cooling. CWK-11 controls the actual pressure head of the ammonia pump, which has nothing to do with the absolute value of the inlet pressure and the outlet pressure. When the separate pressure difference, that is, the pressure head of the ammonia pump, cannot reach the required setting value, CWK-11 Type is to switch on the relay. During the interval, the pressure rises and can make the switch contact jump back, then the stop delay, the ammonia pump continues to work normally, if the pressure still cannot make the switch contact jump back until the end of the stop, it automatically stops Pump.

The CWK-11 itself does not have a repeating mechanism and requires a continuous relay. The bellows and the gas box are made of stainless steel, which can be used for ammonia pumps and other liquid pumps. The main technical parameters 1.

Pressure difference adjustment range: 0.010.15MPa 2. Switch difference: =0.01MPa 3. Power supply: AC220V or 380V contact capacity 380V, 3A (non-inductive load) 4.

The maximum bearing pressure of the bellows: 1.0MPa working principle The CWK-11 pressure difference controller is composed of two relative sensitive elements (corrugated pipes), and the main scale adjustment faceplate is inside the shell. The pressure difference has not been established when the ammonia pump is just started. In order to prevent the pressure difference controller from operating at this time, a delay relay must be connected. After a certain time delay, after the pressure difference is established, the bellows in the bottom air box compresses and produces Displacement, through leverage, makes the switch act. During operation, if the pressure head fails to reach or equal the adjusted indication value, the spring force will extend the bottom bellows, the lever will move down, the switch will jump back, and the relay relay will be connected. The item "Differential pressure controller CWK-11refrigeration ammonia pump control switch" is in sale since Thursday, January 28, 2021. This item is in the category "Consumer Electronics\Other Consumer Electronics". The seller is "lix-computer-mall" and is located in . This item can be shipped worldwide.


Differential pressure controller CWK-11refrigeration ammonia pump control switch