Boilers are core equipment for energy conversion. Whether it is a gas-fired wall-hung boiler, a steam boiler, or a biomass hot air furnace, they all rely on the precise coordination of "wind" and "pressure". As a control component with flexibly adjustable pressure thresholds, the adjustable pressure air pressure switch occupies an irreplaceable position in boiler accessories due to its unique performance advantages. It can not only accurately respond to changes in air pressure but also adapt parameters according to different working conditions, providing multiple guarantees for the stable operation of boiler systems.
The most prominent advantage of the adjustable pressure air pressure switch lies in its flexible pressure adjustment capability.
· Adaptation to multiple fuels: The primary air coefficients required for the combustion of natural gas, liquefied gas, biomass gas, light oil, etc., vary greatly. The adjustable air pressure switch can be steplessly set within the range of 20-500 Pa, avoiding misoperations caused by a "one-size-fits-all" approach.
· Compatibility with multiple altitudes: In plateau areas where atmospheric pressure is low and the back pressure of the burner decreases, simply lowering the set value can maintain sensitivity, eliminating the trouble of replacing the spring.
· Fine-tuning of the combustion curve: When matched with an electronic proportional adjustment system, it can reduce the air pressure shutdown point under partial load, reduce frequent starts and stops, and extend the service life of the ignition needle and gas valve.
The adjustable pressure air pressure switch has significant advantages in terms of adaptability and compatibility, truly achieving "one machine with multiple functions". To meet the different needs from household wall-hung boilers to hundred-ton industrial boilers, its wide adjustment range of 10Pa-10kPa can be applied with simple adjustments without replacing internal components.
The product design fully considers versatility:
1. The electrical interface is compatible with European standard quick-insert terminals and national standard spring inserts.
1. The mechanical interface provides multiple pressure-taking methods such as G1/8, G1/4, and Φ6.
1. The output supports dry contacts, 4-20mA, 0-10V, and MODBUS protocol.
This highly compatible design enables the product to seamlessly connect with mainstream control systems such as Siemens and Honeywell, reducing inventory models by 80%, lowering procurement costs by more than 30%, and improving installation and commissioning efficiency by 50%, truly achieving the convenient experience of "plug-and-play".
The enhancement of safety guarantee capability is another important advantage of the adjustable pressure air pressure switch in boiler accessories. During the operation of the boiler, abnormal air pressure may cause serious safety hazards: if the air pressure is too low, insufficient combustion of fuel will lead to leakage of toxic gases such as carbon monoxide, and may even cause furnace explosion; if the air pressure is too high, it may cause fan overload, pipeline rupture, or flame overflow. The adjustable pressure air pressure switch can monitor the air pressure changes in the boiler air duct in real-time by accurately setting the upper and lower pressure limits. When the air pressure exceeds the safe range, the switch will quickly trigger linkage devices, such as cutting off fuel supply, stopping fan operation, or activating the alarm system, thereby curbing the occurrence of dangerous accidents in the first place. Compared with fixed pressure switches, adjustable switches can dynamically adjust safety thresholds according to factors such as the boiler's maintenance cycle and aging degree. For example, the air duct of an old boiler may have increased air pressure loss due to dust accumulation. At this time, appropriately increasing the lower limit pressure value can avoid misjudgment caused by equipment aging and further improve the safety of the system.
With its flexible setting, accurate response, and reliable performance, the adjustable pressure air pressure switch is completing the value leap from "safety bottom line" to "intelligent combustion" in the boiler industry. It not only protects equipment and personal safety but also, through fine adjustments of millimetre-level water columns, leverages the huge potential of energy conservation and intelligence in boiler systems.
