DL stainless steel three valve group for Yokogawa Rosemount differential pressure transmitter

DL stainless steel three valve group for Yokogawa Rosemount differential pressure transmitterA three valve group is composed of three valves that communicate with each other. According to the function of each valve in the system, it can be divided into: high pressure valve on the left, low pressure valve on the right, and balance valve in the middle. The three valve group consists of a valve body, two shut-off valves, and a balancing valve. Operating procedure for zero point online calibration of differential pressure transmitter: First, open the balance valve and close the two shut-off valves to perform zero point calibration on the transmitter.

DL stainless steel three valve group for Yokogawa Rosemount differential pressure transmitter，The three valve group can be matched with differential pressure transmitters such as 3051, 3095, 1151, EJA, FX-2, FCX-A/C, and ST3000 series

DL stainless steel three valve group for Yokogawa Rosemount differential pressure transmitter，In terms of traffic orDifferential pressure sensorWhen connecting instruments to process pipelinesTo use a 'three valve group'Using is:

1. When the medium is added to the pipeline from the initial state (empty), the sensorsThe lateral pressure will suddenly change, and this pressure differenceExcessive size may damage the sensing of the transmitterThe device. To avoid this, the transmission should be closed firstValves A and B on both sides of the sensor, open the bypass valveC;

2. When the medium fills the pipeline and tends toNear stableAfter balancing, open AOr one of B, apply pressure evenly on both sides of the sensor;

3. Close itClose valve C and open the other one in A or BExternal valve, sensor starts working normally;

4. The order of closure is opposite to the above situation.

In addition, the 3-valve group has other functions, such as cleaning the pipeline after running for a period of time, and the sensor part is not affected (the pipeline is bypassed).

DL stainless steel three valve group for Yokogawa Rosemount differential pressure transmitter