Problems with 4-ton boilers
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A 4-ton gas boiler with a steam output pressure of 0.3–0.6 MPa, where this pressure fluctuates significantly. The apparent cause is that the boiler’s burner operates in high/low power modes as well as in a shutdown mode, which leads to large pressure fluctuations. However, there is one issue: this system does not have a steam buffer tank. So what benefit does a buffer tank have for stabilizing pressure in a 4-ton boiler?
Adjusting it a bit will make it better. For example, increase the firing pressure a bit and reduce the low-fire load (for instance, from 40% to 25%).
Everything has been tried with no success – does a 4-ton boiler need a buffer tank?
You might be using gas for production purposes. For normal heating, adjustments to the intensity of the heat are made in order to save energy; pressure fluctuations have little impact. It should be possible to set the intensity of the heat, so check the manual – different manufacturers use different control methods