Pilot-operated gas pressure regulator by Pietro Fiorentini, Terval/A is suitable for use with previously filtered non-corrosive gases.

It is mainly used for medium and low pressure natural gas distribution networks.

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

• Accuracy class: up to 2.5
• Available size DN: 2″, 2″ 1/2, 3″, 4″
• Closing pressure class SG: up to 5
• Design pressure: up to 25 bar
• Design temperature: from -20 °C to +60 °C (higher or lower temperatures on demand)
• Flanging: class 150 RF or RTJ according to ASME B16.5 and PN 25 and 40 according to ISO 7005
• Minimum working differential pressure: 0.45 bar
• Outlet pressure range of Wd: from 0.005 to 9.5 bar, depending on the installed pilot
• Range of inlet pressure bpu: from 0.5 to 25 bar
• Configurations: Silencer