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. […]