Repair Atmospheric Dumb Controller

About Atmospheric Dumb Controller

This tool serves to stabilize the pressure oulet of Boiler heading to Cargo Tank, throwing excessive pressure generated in the boiler flue to Exit Boiler Tank further into the Boiler Feed Water Tank. 

Atmospheric Dump Valve

In the process of the system controller using the Atmospheric Dumb sens received from Steam boiler pressure pipe itself in the range of 0-30 kg / cm2 which then triggers Men- output air pressure of Automatic Controller toward the diaphragm Control Valve. 

In a state of excess pressure in the boiler, the steam pipe Control Valve will open, in a state of normal pressure will be back closed.

The work that has been done:

Valve Atmospheric

• Flashing tubing of Automatic Controller to Diaphragm Control Valve

• Flashing tubing from the boiler to the steam pipe Sensing Automatic Controller

• Test Function with steps:

Calibration Atmospheric Dump Controller

1. Giving the pressure at the inlet Filter Regulator of 8 kg / cm2 which was reduced to 1.4 kg / cm2 by the regulator and put Automatic Controller.
2. Giving sensing pressure on the trigger 19 kg / cm2 of the recommended range is 0-30 kg / cm2.
3. Result: no reaction occurs in the diaphragm control valve, to ensure the output pressure of the Automatic Controller tubing leading to the diaphragm off with the results still no pressure out.

Conclusion:

a) Improved Automatic Controller.

Less likely to clog the network tubing and hose that occur in the circuit Automatic Controller.

Less likely to clog the tool triggering pressure in the Automatic Controller.

Atmospheric Controller Calibration

b) Replacement, if the option "a" does not resolve the situation.

Appendix:

Data equipment:

Automatic Controller

Filter Regulator

Dumb Dumb Atmospheric Valve system consists of:

1. Control Valve

- Branch: Nakakita Seisakusho

- Diafragm Range: 0.4 to 2.0 kg / cm2

- Condition: Good

Controller Atmospheric

2. Automatic Controller

- Branch: Nakakita Seisakusho

 Scale Range: 0-30 kg / cm2

- Control Pressure: 0.2 to 1.0 kg / cm2

- Condition: Not working properly (described below).

3. Filter Regulator

- Brand: Nakakita Seisakusho

- Inlet Pressure: max. 10 kg / cm2

- Outlet Pressure: 0-3 kg / cm2

- Condition: works well