Noise emission is becoming an increasingly important criterion when selecting gas pressure regulators for installation in residential areas. This aspect is often specified in regulations, as for example in the TA-Lärm in Germany. See: www.verwaltungsvorschriften-im-internet.de/bsvwvbund_26081998_IG19980826.htm A test recently carried out by Wigersma & Sikkema at ZVO Energie GmbH in Sierksdorf, Germany, addresses this important aspect.
The test
In the test, an existing gas pressure regulator (DN80/DN150) from a known supplier was replaced with an RS350S DN80 PN16 gas pressure regulator from Wigersma & Sikkema. At the time of replacement, the flow rate was about 400 m3/h.
Noise measurements
The following noise measurements were carried out before replacing the pressure regulator:
- Gas pressure regulator from manufacturer H (incl. damping): 1 meter distance from the gas pressure control line: 74,8 dB
- RS350S DN80 from Wigersma & Sikkema (without silencer): 1 meter distance from the gas pressure control line: 87 dB
With silencer
After fitting a silencer in Wigersma & Sikkema’s RS350S DN80 PN16, the following value was measured:
- RS350S DN80 from Wigersma & Sikkema (with silencer): 1 meter distance from the gas pressure control line: 66 dB
Striking results
The results show a significant noise reduction as a result of installing the silencer. Interestingly, almost no noise was audible after the installation of the silencer on the regulator, only the flow noise in the exhaust volume was still perceptible.
Conclusion
The test shows how important noise emission is when selecting gas pressure regulators, especially in residential areas where noise pollution can occur. The significant reduction in noise levels after the installation of a silencer in the RS350S DN80 PN16 highlights the importance of innovative solutions to comply with noise regulations.