Direct-operated gas pressure regulator controlled by a diaphragm and contrasting regulated spring action, Trias is suitable for use with previously filtered non-corrosive gases.

Its use is strongly recommended in medium and low pressure natural gas distribution networks.

According to the European Standard EN 334, it is classified as Fail Open.

• Accuracy class AC: up to 5
• Nominal sizes DN: 1″ 1/2, 2″
• Lock-up pressure class SG: up to 100
• Design pressure: up to 17 bar
• Design temperature: from -20 °C to +60 °C
• Connections: class 150 RF according to ASME B16.5 and PN 16 according to ISO 7005
• Range of downstream pressure Wd: from 15 to 4000 mbar
• Inlet pressure range bpu: from 0.2 to 17 bar
• Configurations: Slam shut, Double lock, Monitor